Fwd: [PATCH] (3/3) i2c-isa, via686a and w8378x series sensors support for 2.5.58

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----------  Forwarded Message  ----------

Subject: [PATCH] (3/3) i2c-isa, via686a and w8378x series sensors support for 2.5.58
Date: Thu, 16 Jan 2003 21:52:47 +0100
From: GertJan Spoelman <kl at gjs.cc>
To: Linus Torvalds <torvalds at transmeta.com>
Cc: Linux Kernel Mailing List <linux-kernel at vger.kernel.org>

This patch (3/3) adds /drivers/i2c/chips/w83781d.c and adds it to Kconfig and Makefile
in the same dir, it depends on the second patch because of the changes in Kconfig and Makefile.
Please apply.

diff -Nru linux-2.5.58/drivers/i2c/chips/Kconfig linux-2.5.58-edited/drivers/i2c/chips/Kconfig
--- linux-2.5.58/drivers/i2c/chips/Kconfig      2003-01-15 20:50:40.000000000 +0100
+++ linux-2.5.58-edited/drivers/i2c/chips/Kconfig       2003-01-12 16:17:19.000000000 +0100
@@ -51,4 +51,19 @@
          in the lm_sensors package, which you can download at 
          http://www.lm-sensors.nu
 
+config SENSORS_W83781D
+       tristate "  Winbond W83781D, W83782D, W83783S, W83627HF and Asus AS99127F"
+       depends on I2C && I2C_PROC && I2C_ISA
+       help
+         If you say yes here you get support for the Winbond W8378x series
+         of sensor chips: the W83781D, W83782D, W83783S, W83627HF and the
+         similar Asus AS99127F. This can also be built as a module
+         which can be inserted and removed while the kernel is running.
+
+         The module will be called w83781d.ko.
+
+         You will also need the latest user-space utilties: you can find them
+         in the lm_sensors package, which you can download at 
+         http://www.lm-sensors.nu
+
 endmenu
diff -Nru linux-2.5.58/drivers/i2c/chips/Makefile linux-2.5.58-edited/drivers/i2c/chips/Makefile
--- linux-2.5.58/drivers/i2c/chips/Makefile     2003-01-15 20:50:24.000000000 +0100
+++ linux-2.5.58-edited/drivers/i2c/chips/Makefile      2003-01-12 16:18:21.000000000 +0100
@@ -5,3 +5,4 @@
 obj-$(CONFIG_SENSORS_ADM1021)  += adm1021.o
 obj-$(CONFIG_SENSORS_LM75)     += lm75.o
 obj-$(CONFIG_SENSORS_VIA686A)  += via686a.o
+obj-$(CONFIG_SENSORS_W83781D)  += w83781d.o
diff -Nru linux-2.5.58/drivers/i2c/chips/w83781d.c linux-2.5.58-edited/drivers/i2c/chips/w83781d.c
--- linux-2.5.58/drivers/i2c/chips/w83781d.c    1970-01-01 01:00:00.000000000 +0100
+++ linux-2.5.58-edited/drivers/i2c/chips/w83781d.c     2003-01-15 21:24:01.000000000 +0100
@@ -0,0 +1,2062 @@
+/*
+    w83781d.c - Part of lm_sensors, Linux kernel modules for hardware
+                monitoring
+    Copyright (c) 1998 - 2001  Frodo Looijaard <frodol at dds.nl>,
+    Philip Edelbrock <phil at netroedge.com>,
+    and Mark Studebaker <mdsxyz123 at yahoo.com>
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+/*
+    Supports following chips:
+
+    Chip       #vin    #fanin  #pwm    #temp   wchipid vendid  i2c     ISA
+    as99127f   7       3       1?      3       0x30    0x12c3  yes     no
+    asb100 "bach" (type_name = as99127f)       0x30    0x0694  yes     no
+    w83781d    7       3       0       3       0x10    0x5ca3  yes     yes
+    w83627hf   9       3       2       3       0x20    0x5ca3  yes     yes(LPC)
+    w83782d    9       3       2-4     3       0x30    0x5ca3  yes     yes
+    w83783s    5-6     3       2       1-2     0x40    0x5ca3  yes     no
+    w83697hf   8       2       2       2       0x60    0x5ca3  no      yes(LPC)
+
+*/
+
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/proc_fs.h>
+#include <linux/ioport.h>
+#include <linux/sysctl.h>
+#include <linux/types.h>
+#include <linux/i2c.h>
+#include <linux/i2c-proc.h>
+#include <linux/init.h>
+#include <asm/errno.h>
+#include <asm/io.h>
+
+/* Registers */
+#define W83781D_SYSCTL_IN0 1000        /* Volts * 100 */
+#define W83781D_SYSCTL_IN1 1001
+#define W83781D_SYSCTL_IN2 1002
+#define W83781D_SYSCTL_IN3 1003
+#define W83781D_SYSCTL_IN4 1004
+#define W83781D_SYSCTL_IN5 1005
+#define W83781D_SYSCTL_IN6 1006
+#define W83781D_SYSCTL_IN7 1007
+#define W83781D_SYSCTL_IN8 1008
+#define W83781D_SYSCTL_FAN1 1101       /* Rotations/min */
+#define W83781D_SYSCTL_FAN2 1102
+#define W83781D_SYSCTL_FAN3 1103
+#define W83781D_SYSCTL_TEMP1 1200      /* Degrees Celcius * 10 */
+#define W83781D_SYSCTL_TEMP2 1201      /* Degrees Celcius * 10 */
+#define W83781D_SYSCTL_TEMP3 1202      /* Degrees Celcius * 10 */
+#define W83781D_SYSCTL_VID 1300                /* Volts * 1000 */
+#define W83781D_SYSCTL_VRM 1301
+#define W83781D_SYSCTL_PWM1 1401
+#define W83781D_SYSCTL_PWM2 1402
+#define W83781D_SYSCTL_PWM3 1403
+#define W83781D_SYSCTL_PWM4 1404
+#define W83781D_SYSCTL_SENS1 1501      /* 1, 2, or Beta (3000-5000) */
+#define W83781D_SYSCTL_SENS2 1502
+#define W83781D_SYSCTL_SENS3 1503
+#define W83781D_SYSCTL_RT1   1601      /* 32-entry table */
+#define W83781D_SYSCTL_RT2   1602      /* 32-entry table */
+#define W83781D_SYSCTL_RT3   1603      /* 32-entry table */
+#define W83781D_SYSCTL_FAN_DIV 2000    /* 1, 2, 4 or 8 */
+#define W83781D_SYSCTL_ALARMS 2001     /* bitvector */
+#define W83781D_SYSCTL_BEEP 2002       /* bitvector */
+
+#define W83781D_ALARM_IN0 0x0001
+#define W83781D_ALARM_IN1 0x0002
+#define W83781D_ALARM_IN2 0x0004
+#define W83781D_ALARM_IN3 0x0008
+#define W83781D_ALARM_IN4 0x0100
+#define W83781D_ALARM_IN5 0x0200
+#define W83781D_ALARM_IN6 0x0400
+#define W83782D_ALARM_IN7 0x10000
+#define W83782D_ALARM_IN8 0x20000
+#define W83781D_ALARM_FAN1 0x0040
+#define W83781D_ALARM_FAN2 0x0080
+#define W83781D_ALARM_FAN3 0x0800
+#define W83781D_ALARM_TEMP1 0x0010
+#define W83781D_ALARM_TEMP23 0x0020    /* 781D only */
+#define W83781D_ALARM_TEMP2 0x0020     /* 782D/783S */
+#define W83781D_ALARM_TEMP3 0x2000     /* 782D only */
+#define W83781D_ALARM_CHAS 0x1000
+
+/*
+    The part below contains common code for decoding VID pins.
+    This is included in various chip drivers in this directory.
+    As the user is unlikely to load more than one driver which
+    includes this code we don't worry about the wasted space.
+    Reference: VRM x.y DC-DC Converter Design Guidelines,
+    available at http://developer.intel.com
+*/
+
+/*
+    Legal val values 00 - 1F.
+    vrm is the Intel VRM document version.
+    Note: vrm version is scaled by 10 and the return value is scaled by 1000
+    to avoid floating point in the kernel.
+*/
+
+#define DEFAULT_VRM    82
+
+static inline int vid_from_reg(int val, int vrm)
+{
+       switch(vrm) {
+
+       case 91:                /* VRM 9.1 */
+       case 90:                /* VRM 9.0 */
+               return(val == 0x1f ? 0 :
+                                      1850 - val * 25);
+
+       case 85:                /* VRM 8.5 */
+               return((val & 0x10  ? 25 : 0) +
+                      ((val & 0x0f) > 0x04 ? 2050 : 1250) -
+                      ((val & 0x0f) * 50));
+
+       case 84:                /* VRM 8.4 */
+               val &= 0x0f;
+                               /* fall through */
+       default:                /* VRM 8.2 */
+               return(val == 0x1f ? 0 :
+                      val & 0x10  ? 5100 - (val) * 100 :
+                                    2050 - (val) * 50);
+       }
+}
+
+
+/* RT Table support #defined so we can take it out if it gets bothersome */
+#define W83781D_RT 1
+
+/* Addresses to scan */
+static unsigned short normal_i2c[] = { SENSORS_I2C_END };
+static unsigned short normal_i2c_range[] = { 0x20, 0x2f, SENSORS_I2C_END };
+static unsigned int normal_isa[] = { 0x0290, SENSORS_ISA_END };
+static unsigned int normal_isa_range[] = { SENSORS_ISA_END };
+
+/* Insmod parameters */
+SENSORS_INSMOD_6(w83781d, w83782d, w83783s, w83627hf, as99127f, w83697hf);
+SENSORS_MODULE_PARM(force_subclients, "List of subclient addresses: " \
+                      "{bus, clientaddr, subclientaddr1, subclientaddr2}");
+
+static int init = 1;
+MODULE_PARM(init, "i");
+MODULE_PARM_DESC(init, "Set to zero to bypass chip initialization");
+
+/* Constants specified below */
+
+/* Length of ISA address segment */
+#define W83781D_EXTENT 8
+
+/* Where are the ISA address/data registers relative to the base address */
+#define W83781D_ADDR_REG_OFFSET 5
+#define W83781D_DATA_REG_OFFSET 6
+
+/* The W83781D registers */
+/* The W83782D registers for nr=7,8 are in bank 5 */
+#define W83781D_REG_IN_MAX(nr) ((nr < 7) ? (0x2b + (nr) * 2) : \
+                                          (0x554 + (((nr) - 7) * 2)))
+#define W83781D_REG_IN_MIN(nr) ((nr < 7) ? (0x2c + (nr) * 2) : \
+                                          (0x555 + (((nr) - 7) * 2)))
+#define W83781D_REG_IN(nr)     ((nr < 7) ? (0x20 + (nr)) : \
+                                          (0x550 + (nr) - 7))
+
+#define W83781D_REG_FAN_MIN(nr) (0x3a + (nr))
+#define W83781D_REG_FAN(nr) (0x27 + (nr))
+
+#define W83781D_REG_TEMP2 0x0150
+#define W83781D_REG_TEMP3 0x0250
+#define W83781D_REG_TEMP2_HYST 0x153
+#define W83781D_REG_TEMP3_HYST 0x253
+#define W83781D_REG_TEMP2_CONFIG 0x152
+#define W83781D_REG_TEMP3_CONFIG 0x252
+#define W83781D_REG_TEMP2_OVER 0x155
+#define W83781D_REG_TEMP3_OVER 0x255
+
+#define W83781D_REG_TEMP 0x27
+#define W83781D_REG_TEMP_OVER 0x39
+#define W83781D_REG_TEMP_HYST 0x3A
+#define W83781D_REG_BANK 0x4E
+
+#define W83781D_REG_CONFIG 0x40
+#define W83781D_REG_ALARM1 0x41
+#define W83781D_REG_ALARM2 0x42
+#define W83781D_REG_ALARM3 0x450       /* not on W83781D */
+
+#define W83781D_REG_IRQ 0x4C
+#define W83781D_REG_BEEP_CONFIG 0x4D
+#define W83781D_REG_BEEP_INTS1 0x56
+#define W83781D_REG_BEEP_INTS2 0x57
+#define W83781D_REG_BEEP_INTS3 0x453   /* not on W83781D */
+
+#define W83781D_REG_VID_FANDIV 0x47
+
+#define W83781D_REG_CHIPID 0x49
+#define W83781D_REG_WCHIPID 0x58
+#define W83781D_REG_CHIPMAN 0x4F
+#define W83781D_REG_PIN 0x4B
+
+/* 782D/783S only */
+#define W83781D_REG_VBAT 0x5D
+
+/* PWM 782D (1-4) and 783S (1-2) only */
+#define W83781D_REG_PWM1 0x5B  /* 782d and 783s/627hf datasheets disagree */
+                               /* on which is which; */
+#define W83781D_REG_PWM2 0x5A  /* We follow the 782d convention here, */
+                               /* However 782d is probably wrong. */
+#define W83781D_REG_PWM3 0x5E
+#define W83781D_REG_PWM4 0x5F
+#define W83781D_REG_PWMCLK12 0x5C
+#define W83781D_REG_PWMCLK34 0x45C
+static const u8 regpwm[] = { W83781D_REG_PWM1, W83781D_REG_PWM2,
+       W83781D_REG_PWM3, W83781D_REG_PWM4
+};
+#define W83781D_REG_PWM(nr) (regpwm[(nr) - 1])
+
+#define W83781D_REG_I2C_ADDR 0x48
+#define W83781D_REG_I2C_SUBADDR 0x4A
+
+/* The following are undocumented in the data sheets however we
+   received the information in an email from Winbond tech support */
+/* Sensor selection - not on 781d */
+#define W83781D_REG_SCFG1 0x5D
+static const u8 BIT_SCFG1[] = { 0x02, 0x04, 0x08 };
+#define W83781D_REG_SCFG2 0x59
+static const u8 BIT_SCFG2[] = { 0x10, 0x20, 0x40 };
+#define W83781D_DEFAULT_BETA 3435
+
+/* RT Table registers */
+#define W83781D_REG_RT_IDX 0x50
+#define W83781D_REG_RT_VAL 0x51
+
+/* Conversions. Rounding and limit checking is only done on the TO_REG
+   variants. Note that you should be a bit careful with which arguments
+   these macros are called: arguments may be evaluated more than once.
+   Fixing this is just not worth it. */
+#define IN_TO_REG(val)  (SENSORS_LIMIT((((val) * 10 + 8)/16),0,255))
+#define IN_FROM_REG(val) (((val) * 16) / 10)
+
+static inline u8 FAN_TO_REG(long rpm, int div)
+{
+       if (rpm == 0)
+               return 255;
+       rpm = SENSORS_LIMIT(rpm, 1, 1000000);
+       return SENSORS_LIMIT((1350000 + rpm * div / 2) / (rpm * div), 1,
+                            254);
+}
+
+#define FAN_FROM_REG(val,div) ((val)==0?-1:(val)==255?0:1350000/((val)*(div)))
+
+#define TEMP_TO_REG(val) (SENSORS_LIMIT(((val)<0?(((val)-5)/10):\
+                                                 ((val)+5)/10),0,255))
+#define TEMP_FROM_REG(val) (((val)>0x80?(val)-0x100:(val))*10)
+
+#define TEMP_ADD_TO_REG(val)   (SENSORS_LIMIT(((((val) + 2) / 5) << 7),\
+                                              0,0xffff))
+#define TEMP_ADD_FROM_REG(val) (((val) >> 7) * 5)
+
+#define AS99127_TEMP_ADD_TO_REG(val) (SENSORS_LIMIT((((((val) + 2)*4)/10) \
+                                               << 7),0,0xffff))
+#define AS99127_TEMP_ADD_FROM_REG(val) ((((val) >> 7) * 10) / 4)
+
+#define ALARMS_FROM_REG(val) (val)
+#define PWM_FROM_REG(val) (val)
+#define PWM_TO_REG(val) (SENSORS_LIMIT((val),0,255))
+#define BEEPS_FROM_REG(val) (val)
+#define BEEPS_TO_REG(val) ((val) & 0xffffff)
+
+#define BEEP_ENABLE_TO_REG(val)   ((val)?1:0)
+#define BEEP_ENABLE_FROM_REG(val) ((val)?1:0)
+
+#define DIV_FROM_REG(val) (1 << (val))
+
+static inline u8 DIV_TO_REG(long val, enum chips type)
+{
+       int i;
+       val = SENSORS_LIMIT(val, 1,
+               ((type == w83781d || type == as99127f) ? 8 : 128)) >> 1;
+       for (i = 0; i < 6; i++) {
+               if (val == 0)
+                       break;
+               val >>= 1;
+       }
+       return ((u8) i);
+}
+
+/* Initial limits */
+#define W83781D_INIT_IN_0 (vid==3500?280:vid/10)
+#define W83781D_INIT_IN_1 (vid==3500?280:vid/10)
+#define W83781D_INIT_IN_2 330
+#define W83781D_INIT_IN_3 (((500)   * 100)/168)
+#define W83781D_INIT_IN_4 (((1200)  * 10)/38)
+#define W83781D_INIT_IN_5 (((-1200) * -604)/2100)
+#define W83781D_INIT_IN_6 (((-500)  * -604)/909)
+#define W83781D_INIT_IN_7 (((500)   * 100)/168)
+#define W83781D_INIT_IN_8 300
+/* Initial limits for 782d/783s negative voltages */
+/* Note level shift. Change min/max below if you change these. */
+#define W83782D_INIT_IN_5 ((((-1200) + 1491) * 100)/514)
+#define W83782D_INIT_IN_6 ((( (-500)  + 771) * 100)/314)
+
+#define W83781D_INIT_IN_PERCENTAGE 10
+
+#define W83781D_INIT_IN_MIN_0 \
+        (W83781D_INIT_IN_0 - W83781D_INIT_IN_0 * W83781D_INIT_IN_PERCENTAGE \
+         / 100)
+#define W83781D_INIT_IN_MAX_0 \
+        (W83781D_INIT_IN_0 + W83781D_INIT_IN_0 * W83781D_INIT_IN_PERCENTAGE \
+         / 100)
+#define W83781D_INIT_IN_MIN_1 \
+        (W83781D_INIT_IN_1 - W83781D_INIT_IN_1 * W83781D_INIT_IN_PERCENTAGE \
+         / 100)
+#define W83781D_INIT_IN_MAX_1 \
+        (W83781D_INIT_IN_1 + W83781D_INIT_IN_1 * W83781D_INIT_IN_PERCENTAGE \
+         / 100)
+#define W83781D_INIT_IN_MIN_2 \
+        (W83781D_INIT_IN_2 - W83781D_INIT_IN_2 * W83781D_INIT_IN_PERCENTAGE \
+         / 100)
+#define W83781D_INIT_IN_MAX_2 \
+        (W83781D_INIT_IN_2 + W83781D_INIT_IN_2 * W83781D_INIT_IN_PERCENTAGE \
+         / 100)
+#define W83781D_INIT_IN_MIN_3 \
+        (W83781D_INIT_IN_3 - W83781D_INIT_IN_3 * W83781D_INIT_IN_PERCENTAGE \
+         / 100)
+#define W83781D_INIT_IN_MAX_3 \
+        (W83781D_INIT_IN_3 + W83781D_INIT_IN_3 * W83781D_INIT_IN_PERCENTAGE \
+         / 100)
+#define W83781D_INIT_IN_MIN_4 \
+        (W83781D_INIT_IN_4 - W83781D_INIT_IN_4 * W83781D_INIT_IN_PERCENTAGE \
+         / 100)
+#define W83781D_INIT_IN_MAX_4 \
+        (W83781D_INIT_IN_4 + W83781D_INIT_IN_4 * W83781D_INIT_IN_PERCENTAGE \
+         / 100)
+#define W83781D_INIT_IN_MIN_5 \
+        (W83781D_INIT_IN_5 - W83781D_INIT_IN_5 * W83781D_INIT_IN_PERCENTAGE \
+         / 100)
+#define W83781D_INIT_IN_MAX_5 \
+        (W83781D_INIT_IN_5 + W83781D_INIT_IN_5 * W83781D_INIT_IN_PERCENTAGE \
+         / 100)
+#define W83781D_INIT_IN_MIN_6 \
+        (W83781D_INIT_IN_6 - W83781D_INIT_IN_6 * W83781D_INIT_IN_PERCENTAGE \
+         / 100)
+#define W83781D_INIT_IN_MAX_6 \
+        (W83781D_INIT_IN_6 + W83781D_INIT_IN_6 * W83781D_INIT_IN_PERCENTAGE \
+         / 100)
+#define W83781D_INIT_IN_MIN_7 \
+        (W83781D_INIT_IN_7 - W83781D_INIT_IN_7 * W83781D_INIT_IN_PERCENTAGE \
+         / 100)
+#define W83781D_INIT_IN_MAX_7 \
+        (W83781D_INIT_IN_7 + W83781D_INIT_IN_7 * W83781D_INIT_IN_PERCENTAGE \
+         / 100)
+#define W83781D_INIT_IN_MIN_8 \
+        (W83781D_INIT_IN_8 - W83781D_INIT_IN_8 * W83781D_INIT_IN_PERCENTAGE \
+         / 100)
+#define W83781D_INIT_IN_MAX_8 \
+        (W83781D_INIT_IN_8 + W83781D_INIT_IN_8 * W83781D_INIT_IN_PERCENTAGE \
+         / 100)
+/* Initial limits for 782d/783s negative voltages */
+/* These aren't direct multiples because of level shift */
+/* Beware going negative - check */
+#define W83782D_INIT_IN_MIN_5_TMP \
+        (((-1200 * (100 + W83781D_INIT_IN_PERCENTAGE)) + (1491 * 100))/514)
+#define W83782D_INIT_IN_MIN_5 \
+        ((W83782D_INIT_IN_MIN_5_TMP > 0) ? W83782D_INIT_IN_MIN_5_TMP : 0)
+#define W83782D_INIT_IN_MAX_5 \
+        (((-1200 * (100 - W83781D_INIT_IN_PERCENTAGE)) + (1491 * 100))/514)
+#define W83782D_INIT_IN_MIN_6_TMP \
+        ((( -500 * (100 + W83781D_INIT_IN_PERCENTAGE)) +  (771 * 100))/314)
+#define W83782D_INIT_IN_MIN_6 \
+        ((W83782D_INIT_IN_MIN_6_TMP > 0) ? W83782D_INIT_IN_MIN_6_TMP : 0)
+#define W83782D_INIT_IN_MAX_6 \
+        ((( -500 * (100 - W83781D_INIT_IN_PERCENTAGE)) +  (771 * 100))/314)
+
+#define W83781D_INIT_FAN_MIN_1 3000
+#define W83781D_INIT_FAN_MIN_2 3000
+#define W83781D_INIT_FAN_MIN_3 3000
+
+#define W83781D_INIT_TEMP_OVER 600
+#define W83781D_INIT_TEMP_HYST 1270    /* must be 127 for ALARM to work */
+#define W83781D_INIT_TEMP2_OVER 600
+#define W83781D_INIT_TEMP2_HYST 500
+#define W83781D_INIT_TEMP3_OVER 600
+#define W83781D_INIT_TEMP3_HYST 500
+
+/* There are some complications in a module like this. First off, W83781D chips
+   may be both present on the SMBus and the ISA bus, and we have to handle
+   those cases separately at some places. Second, there might be several
+   W83781D chips available (well, actually, that is probably never done; but
+   it is a clean illustration of how to handle a case like that). Finally,
+   a specific chip may be attached to *both* ISA and SMBus, and we would
+   not like to detect it double. Fortunately, in the case of the W83781D at
+   least, a register tells us what SMBus address we are on, so that helps
+   a bit - except if there could be more than one SMBus. Groan. No solution
+   for this yet. */
+
+/* This module may seem overly long and complicated. In fact, it is not so
+   bad. Quite a lot of bookkeeping is done. A real driver can often cut
+   some corners. */
+
+/* For each registered W83781D, we need to keep some data in memory. That
+   data is pointed to by w83781d_list[NR]->data. The structure itself is
+   dynamically allocated, at the same time when a new w83781d client is
+   allocated. */
+struct w83781d_data {
+       struct semaphore lock;
+       int sysctl_id;
+       enum chips type;
+
+       struct semaphore update_lock;
+       char valid;             /* !=0 if following fields are valid */
+       unsigned long last_updated;     /* In jiffies */
+
+       struct i2c_client *lm75;        /* for secondary I2C addresses */
+       /* pointer to array of 2 subclients */
+
+       u8 in[9];               /* Register value - 8 & 9 for 782D only */
+       u8 in_max[9];           /* Register value - 8 & 9 for 782D only */
+       u8 in_min[9];           /* Register value - 8 & 9 for 782D only */
+       u8 fan[3];              /* Register value */
+       u8 fan_min[3];          /* Register value */
+       u8 temp;
+       u8 temp_over;           /* Register value */
+       u8 temp_hyst;           /* Register value */
+       u16 temp_add[2];        /* Register value */
+       u16 temp_add_over[2];   /* Register value */
+       u16 temp_add_hyst[2];   /* Register value */
+       u8 fan_div[3];          /* Register encoding, shifted right */
+       u8 vid;                 /* Register encoding, combined */
+       u32 alarms;             /* Register encoding, combined */
+       u32 beeps;              /* Register encoding, combined */
+       u8 beep_enable;         /* Boolean */
+       u8 pwm[4];              /* Register value */
+       u16 sens[3];            /* 782D/783S only.
+                                  1 = pentium diode; 2 = 3904 diode;
+                                  3000-5000 = thermistor beta.
+                                  Default = 3435. 
+                                  Other Betas unimplemented */
+#ifdef W83781D_RT
+       u8 rt[3][32];           /* Register value */
+#endif
+       u8 vrm;
+};
+
+static int w83781d_attach_adapter(struct i2c_adapter *adapter);
+static int w83781d_detect(struct i2c_adapter *adapter, int address,
+                         unsigned short flags, int kind);
+static int w83781d_detach_client(struct i2c_client *client);
+
+static int w83781d_read_value(struct i2c_client *client, u16 register);
+static int w83781d_write_value(struct i2c_client *client, u16 register,
+                              u16 value);
+static void w83781d_update_client(struct i2c_client *client);
+static void w83781d_init_client(struct i2c_client *client);
+
+
+static void w83781d_in(struct i2c_client *client, int operation,
+                      int ctl_name, int *nrels_mag, long *results);
+static void w83781d_fan(struct i2c_client *client, int operation,
+                       int ctl_name, int *nrels_mag, long *results);
+static void w83781d_temp(struct i2c_client *client, int operation,
+                        int ctl_name, int *nrels_mag, long *results);
+static void w83781d_temp_add(struct i2c_client *client, int operation,
+                            int ctl_name, int *nrels_mag, long *results);
+static void w83781d_vid(struct i2c_client *client, int operation,
+                       int ctl_name, int *nrels_mag, long *results);
+static void w83781d_vrm(struct i2c_client *client, int operation,
+                       int ctl_name, int *nrels_mag, long *results);
+static void w83781d_alarms(struct i2c_client *client, int operation,
+                          int ctl_name, int *nrels_mag, long *results);
+static void w83781d_beep(struct i2c_client *client, int operation,
+                        int ctl_name, int *nrels_mag, long *results);
+static void w83781d_fan_div(struct i2c_client *client, int operation,
+                           int ctl_name, int *nrels_mag, long *results);
+static void w83781d_pwm(struct i2c_client *client, int operation,
+                       int ctl_name, int *nrels_mag, long *results);
+static void w83781d_sens(struct i2c_client *client, int operation,
+                        int ctl_name, int *nrels_mag, long *results);
+#ifdef W83781D_RT
+static void w83781d_rt(struct i2c_client *client, int operation,
+                      int ctl_name, int *nrels_mag, long *results);
+#endif
+static u16 swap_bytes(u16 val);
+
+static int w83781d_id = 0;
+
+static struct i2c_driver w83781d_driver = {
+       .name           = "W83781D sensor driver",
+       .id             = I2C_DRIVERID_W83781D,
+       .flags          = I2C_DF_NOTIFY,
+       .attach_adapter = w83781d_attach_adapter,
+       .detach_client  = w83781d_detach_client,
+};
+
+/* The /proc/sys entries */
+/* These files are created for each detected chip. This is just a template;
+   though at first sight, you might think we could use a statically
+   allocated list, we need some way to get back to the parent - which
+   is done through one of the 'extra' fields which are initialized 
+   when a new copy is allocated. */
+
+/* just a guess - no datasheet */
+static ctl_table as99127f_dir_table_template[] = {
+       {W83781D_SYSCTL_IN0, "in0", NULL, 0, 0644, NULL, &i2c_proc_real,
+        &i2c_sysctl_real, NULL, &w83781d_in},
+       {W83781D_SYSCTL_IN1, "in1", NULL, 0, 0644, NULL, &i2c_proc_real,
+        &i2c_sysctl_real, NULL, &w83781d_in},
+       {W83781D_SYSCTL_IN2, "in2", NULL, 0, 0644, NULL, &i2c_proc_real,
+        &i2c_sysctl_real, NULL, &w83781d_in},
+       {W83781D_SYSCTL_IN3, "in3", NULL, 0, 0644, NULL, &i2c_proc_real,
+        &i2c_sysctl_real, NULL, &w83781d_in},
+       {W83781D_SYSCTL_IN4, "in4", NULL, 0, 0644, NULL, &i2c_proc_real,
+        &i2c_sysctl_real, NULL, &w83781d_in},
+       {W83781D_SYSCTL_IN5, "in5", NULL, 0, 0644, NULL, &i2c_proc_real,
+        &i2c_sysctl_real, NULL, &w83781d_in},
+       {W83781D_SYSCTL_IN6, "in6", NULL, 0, 0644, NULL, &i2c_proc_real,
+        &i2c_sysctl_real, NULL, &w83781d_in},
+       {W83781D_SYSCTL_FAN1, "fan1", NULL, 0, 0644, NULL, &i2c_proc_real,
+        &i2c_sysctl_real, NULL, &w83781d_fan},
+       {W83781D_SYSCTL_FAN2, "fan2", NULL, 0, 0644, NULL, &i2c_proc_real,
+        &i2c_sysctl_real, NULL, &w83781d_fan},
+       {W83781D_SYSCTL_FAN3, "fan3", NULL, 0, 0644, NULL, &i2c_proc_real,
+        &i2c_sysctl_real, NULL, &w83781d_fan},
+       {W83781D_SYSCTL_TEMP1, "temp1", NULL, 0, 0644, NULL, &i2c_proc_real,
+        &i2c_sysctl_real, NULL, &w83781d_temp},
+       {W83781D_SYSCTL_TEMP2, "temp2", NULL, 0, 0644, NULL, &i2c_proc_real,
+        &i2c_sysctl_real, NULL, &w83781d_temp_add},
+       {W83781D_SYSCTL_TEMP3, "temp3", NULL, 0, 0644, NULL, &i2c_proc_real,
+        &i2c_sysctl_real, NULL, &w83781d_temp_add},
+       {W83781D_SYSCTL_VID, "vid", NULL, 0, 0444, NULL, &i2c_proc_real,
+        &i2c_sysctl_real, NULL, &w83781d_vid},
+       {W83781D_SYSCTL_VRM, "vrm", NULL, 0, 0644, NULL, &i2c_proc_real,
+        &i2c_sysctl_real, NULL, &w83781d_vrm},
+       {W83781D_SYSCTL_FAN_DIV, "fan_div", NULL, 0, 0644, NULL, &i2c_proc_real,
+        &i2c_sysctl_real, NULL, &w83781d_fan_div},
+       {W83781D_SYSCTL_ALARMS, "alarms", NULL, 0, 0444, NULL, &i2c_proc_real,
+        &i2c_sysctl_real, NULL, &w83781d_alarms},
+       {W83781D_SYSCTL_BEEP, "beep", NULL, 0, 0644, NULL, &i2c_proc_real,
+        &i2c_sysctl_real, NULL, &w83781d_beep},
+       {W83781D_SYSCTL_PWM1, "pwm1", NULL, 0, 0644, NULL, &i2c_proc_real,
+        &i2c_sysctl_real, NULL, &w83781d_pwm},
+       {W83781D_SYSCTL_PWM2, "pwm2", NULL, 0, 0644, NULL, &i2c_proc_real,
+        &i2c_sysctl_real, NULL, &w83781d_pwm},
+       {0}
+};
+
+static ctl_table w83781d_dir_table_template[] = {
+       {W83781D_SYSCTL_IN0, "in0", NULL, 0, 0644, NULL, &i2c_proc_real,
+        &i2c_sysctl_real, NULL, &w83781d_in},
+       {W83781D_SYSCTL_IN1, "in1", NULL, 0, 0644, NULL, &i2c_proc_real,
+        &i2c_sysctl_real, NULL, &w83781d_in},
+       {W83781D_SYSCTL_IN2, "in2", NULL, 0, 0644, NULL, &i2c_proc_real,
+        &i2c_sysctl_real, NULL, &w83781d_in},
+       {W83781D_SYSCTL_IN3, "in3", NULL, 0, 0644, NULL, &i2c_proc_real,
+        &i2c_sysctl_real, NULL, &w83781d_in},
+       {W83781D_SYSCTL_IN4, "in4", NULL, 0, 0644, NULL, &i2c_proc_real,
+        &i2c_sysctl_real, NULL, &w83781d_in},
+       {W83781D_SYSCTL_IN5, "in5", NULL, 0, 0644, NULL, &i2c_proc_real,
+        &i2c_sysctl_real, NULL, &w83781d_in},
+       {W83781D_SYSCTL_IN6, "in6", NULL, 0, 0644, NULL, &i2c_proc_real,
+        &i2c_sysctl_real, NULL, &w83781d_in},
+       {W83781D_SYSCTL_FAN1, "fan1", NULL, 0, 0644, NULL, &i2c_proc_real,
+        &i2c_sysctl_real, NULL, &w83781d_fan},
+       {W83781D_SYSCTL_FAN2, "fan2", NULL, 0, 0644, NULL, &i2c_proc_real,
+        &i2c_sysctl_real, NULL, &w83781d_fan},
+       {W83781D_SYSCTL_FAN3, "fan3", NULL, 0, 0644, NULL, &i2c_proc_real,
+        &i2c_sysctl_real, NULL, &w83781d_fan},
+       {W83781D_SYSCTL_TEMP1, "temp1", NULL, 0, 0644, NULL, &i2c_proc_real,
+        &i2c_sysctl_real, NULL, &w83781d_temp},
+       {W83781D_SYSCTL_TEMP2, "temp2", NULL, 0, 0644, NULL, &i2c_proc_real,
+        &i2c_sysctl_real, NULL, &w83781d_temp_add},
+       {W83781D_SYSCTL_TEMP3, "temp3", NULL, 0, 0644, NULL, &i2c_proc_real,
+        &i2c_sysctl_real, NULL, &w83781d_temp_add},
+       {W83781D_SYSCTL_VID, "vid", NULL, 0, 0444, NULL, &i2c_proc_real,
+        &i2c_sysctl_real, NULL, &w83781d_vid},
+       {W83781D_SYSCTL_VRM, "vrm", NULL, 0, 0644, NULL, &i2c_proc_real,
+        &i2c_sysctl_real, NULL, &w83781d_vrm},
+       {W83781D_SYSCTL_FAN_DIV, "fan_div", NULL, 0, 0644, NULL, &i2c_proc_real,
+        &i2c_sysctl_real, NULL, &w83781d_fan_div},
+       {W83781D_SYSCTL_ALARMS, "alarms", NULL, 0, 0444, NULL, &i2c_proc_real,
+        &i2c_sysctl_real, NULL, &w83781d_alarms},
+       {W83781D_SYSCTL_BEEP, "beep", NULL, 0, 0644, NULL, &i2c_proc_real,
+        &i2c_sysctl_real, NULL, &w83781d_beep},
+#ifdef W83781D_RT
+       {W83781D_SYSCTL_RT1, "rt1", NULL, 0, 0644, NULL, &i2c_proc_real,
+        &i2c_sysctl_real, NULL, &w83781d_rt},
+       {W83781D_SYSCTL_RT2, "rt2", NULL, 0, 0644, NULL, &i2c_proc_real,
+        &i2c_sysctl_real, NULL, &w83781d_rt},
+       {W83781D_SYSCTL_RT3, "rt3", NULL, 0, 0644, NULL, &i2c_proc_real,
+        &i2c_sysctl_real, NULL, &w83781d_rt},
+#endif
+       {0}
+};
+
+/* without pwm3-4 */
+static ctl_table w83782d_isa_dir_table_template[] = {
+       {W83781D_SYSCTL_IN0, "in0", NULL, 0, 0644, NULL, &i2c_proc_real,
+        &i2c_sysctl_real, NULL, &w83781d_in},
+       {W83781D_SYSCTL_IN1, "in1", NULL, 0, 0644, NULL, &i2c_proc_real,
+        &i2c_sysctl_real, NULL, &w83781d_in},
+       {W83781D_SYSCTL_IN2, "in2", NULL, 0, 0644, NULL, &i2c_proc_real,
+        &i2c_sysctl_real, NULL, &w83781d_in},
+       {W83781D_SYSCTL_IN3, "in3", NULL, 0, 0644, NULL, &i2c_proc_real,
+        &i2c_sysctl_real, NULL, &w83781d_in},
+       {W83781D_SYSCTL_IN4, "in4", NULL, 0, 0644, NULL, &i2c_proc_real,
+        &i2c_sysctl_real, NULL, &w83781d_in},
+       {W83781D_SYSCTL_IN5, "in5", NULL, 0, 0644, NULL, &i2c_proc_real,
+        &i2c_sysctl_real, NULL, &w83781d_in},
+       {W83781D_SYSCTL_IN6, "in6", NULL, 0, 0644, NULL, &i2c_proc_real,
+        &i2c_sysctl_real, NULL, &w83781d_in},
+       {W83781D_SYSCTL_IN7, "in7", NULL, 0, 0644, NULL, &i2c_proc_real,
+        &i2c_sysctl_real, NULL, &w83781d_in},
+       {W83781D_SYSCTL_IN8, "in8", NULL, 0, 0644, NULL, &i2c_proc_real,
+        &i2c_sysctl_real, NULL, &w83781d_in},
+       {W83781D_SYSCTL_FAN1, "fan1", NULL, 0, 0644, NULL, &i2c_proc_real,
+        &i2c_sysctl_real, NULL, &w83781d_fan},
+       {W83781D_SYSCTL_FAN2, "fan2", NULL, 0, 0644, NULL, &i2c_proc_real,
+        &i2c_sysctl_real, NULL, &w83781d_fan},
+       {W83781D_SYSCTL_FAN3, "fan3", NULL, 0, 0644, NULL, &i2c_proc_real,
+        &i2c_sysctl_real, NULL, &w83781d_fan},
+       {W83781D_SYSCTL_TEMP1, "temp1", NULL, 0, 0644, NULL, &i2c_proc_real,
+        &i2c_sysctl_real, NULL, &w83781d_temp},
+       {W83781D_SYSCTL_TEMP2, "temp2", NULL, 0, 0644, NULL, &i2c_proc_real,
+        &i2c_sysctl_real, NULL, &w83781d_temp_add},
+       {W83781D_SYSCTL_TEMP3, "temp3", NULL, 0, 0644, NULL, &i2c_proc_real,
+        &i2c_sysctl_real, NULL, &w83781d_temp_add},
+       {W83781D_SYSCTL_VID, "vid", NULL, 0, 0444, NULL, &i2c_proc_real,
+        &i2c_sysctl_real, NULL, &w83781d_vid},
+       {W83781D_SYSCTL_VRM, "vrm", NULL, 0, 0644, NULL, &i2c_proc_real,
+        &i2c_sysctl_real, NULL, &w83781d_vrm},
+       {W83781D_SYSCTL_FAN_DIV, "fan_div", NULL, 0, 0644, NULL, &i2c_proc_real,
+        &i2c_sysctl_real, NULL, &w83781d_fan_div},
+       {W83781D_SYSCTL_ALARMS, "alarms", NULL, 0, 0444, NULL, &i2c_proc_real,
+        &i2c_sysctl_real, NULL, &w83781d_alarms},
+       {W83781D_SYSCTL_BEEP, "beep", NULL, 0, 0644, NULL, &i2c_proc_real,
+        &i2c_sysctl_real, NULL, &w83781d_beep},
+       {W83781D_SYSCTL_PWM1, "pwm1", NULL, 0, 0644, NULL, &i2c_proc_real,
+        &i2c_sysctl_real, NULL, &w83781d_pwm},
+       {W83781D_SYSCTL_PWM2, "pwm2", NULL, 0, 0644, NULL, &i2c_proc_real,
+        &i2c_sysctl_real, NULL, &w83781d_pwm},
+       {W83781D_SYSCTL_SENS1, "sensor1", NULL, 0, 0644, NULL, &i2c_proc_real,
+        &i2c_sysctl_real, NULL, &w83781d_sens},
+       {W83781D_SYSCTL_SENS2, "sensor2", NULL, 0, 0644, NULL, &i2c_proc_real,
+        &i2c_sysctl_real, NULL, &w83781d_sens},
+       {W83781D_SYSCTL_SENS3, "sensor3", NULL, 0, 0644, NULL, &i2c_proc_real,
+        &i2c_sysctl_real, NULL, &w83781d_sens},
+       {0}
+};
+
+/* with pwm3-4 */
+static ctl_table w83782d_i2c_dir_table_template[] = {
+       {W83781D_SYSCTL_IN0, "in0", NULL, 0, 0644, NULL, &i2c_proc_real,
+        &i2c_sysctl_real, NULL, &w83781d_in},
+       {W83781D_SYSCTL_IN1, "in1", NULL, 0, 0644, NULL, &i2c_proc_real,
+        &i2c_sysctl_real, NULL, &w83781d_in},
+       {W83781D_SYSCTL_IN2, "in2", NULL, 0, 0644, NULL, &i2c_proc_real,
+        &i2c_sysctl_real, NULL, &w83781d_in},
+       {W83781D_SYSCTL_IN3, "in3", NULL, 0, 0644, NULL, &i2c_proc_real,
+        &i2c_sysctl_real, NULL, &w83781d_in},
+       {W83781D_SYSCTL_IN4, "in4", NULL, 0, 0644, NULL, &i2c_proc_real,
+        &i2c_sysctl_real, NULL, &w83781d_in},
+       {W83781D_SYSCTL_IN5, "in5", NULL, 0, 0644, NULL, &i2c_proc_real,
+        &i2c_sysctl_real, NULL, &w83781d_in},
+       {W83781D_SYSCTL_IN6, "in6", NULL, 0, 0644, NULL, &i2c_proc_real,
+        &i2c_sysctl_real, NULL, &w83781d_in},
+       {W83781D_SYSCTL_IN7, "in7", NULL, 0, 0644, NULL, &i2c_proc_real,
+        &i2c_sysctl_real, NULL, &w83781d_in},
+       {W83781D_SYSCTL_IN8, "in8", NULL, 0, 0644, NULL, &i2c_proc_real,
+        &i2c_sysctl_real, NULL, &w83781d_in},
+       {W83781D_SYSCTL_FAN1, "fan1", NULL, 0, 0644, NULL, &i2c_proc_real,
+        &i2c_sysctl_real, NULL, &w83781d_fan},
+       {W83781D_SYSCTL_FAN2, "fan2", NULL, 0, 0644, NULL, &i2c_proc_real,
+        &i2c_sysctl_real, NULL, &w83781d_fan},
+       {W83781D_SYSCTL_FAN3, "fan3", NULL, 0, 0644, NULL, &i2c_proc_real,
+        &i2c_sysctl_real, NULL, &w83781d_fan},
+       {W83781D_SYSCTL_TEMP1, "temp1", NULL, 0, 0644, NULL, &i2c_proc_real,
+        &i2c_sysctl_real, NULL, &w83781d_temp},
+       {W83781D_SYSCTL_TEMP2, "temp2", NULL, 0, 0644, NULL, &i2c_proc_real,
+        &i2c_sysctl_real, NULL, &w83781d_temp_add},
+       {W83781D_SYSCTL_TEMP3, "temp3", NULL, 0, 0644, NULL, &i2c_proc_real,
+        &i2c_sysctl_real, NULL, &w83781d_temp_add},
+       {W83781D_SYSCTL_VID, "vid", NULL, 0, 0444, NULL, &i2c_proc_real,
+        &i2c_sysctl_real, NULL, &w83781d_vid},
+       {W83781D_SYSCTL_VRM, "vrm", NULL, 0, 0644, NULL, &i2c_proc_real,
+        &i2c_sysctl_real, NULL, &w83781d_vrm},
+       {W83781D_SYSCTL_FAN_DIV, "fan_div", NULL, 0, 0644, NULL, &i2c_proc_real,
+        &i2c_sysctl_real, NULL, &w83781d_fan_div},
+       {W83781D_SYSCTL_ALARMS, "alarms", NULL, 0, 0444, NULL, &i2c_proc_real,
+        &i2c_sysctl_real, NULL, &w83781d_alarms},
+       {W83781D_SYSCTL_BEEP, "beep", NULL, 0, 0644, NULL, &i2c_proc_real,
+        &i2c_sysctl_real, NULL, &w83781d_beep},
+       {W83781D_SYSCTL_PWM1, "pwm1", NULL, 0, 0644, NULL, &i2c_proc_real,
+        &i2c_sysctl_real, NULL, &w83781d_pwm},
+       {W83781D_SYSCTL_PWM2, "pwm2", NULL, 0, 0644, NULL, &i2c_proc_real,
+        &i2c_sysctl_real, NULL, &w83781d_pwm},
+       {W83781D_SYSCTL_PWM3, "pwm3", NULL, 0, 0644, NULL, &i2c_proc_real,
+        &i2c_sysctl_real, NULL, &w83781d_pwm},
+       {W83781D_SYSCTL_PWM4, "pwm4", NULL, 0, 0644, NULL, &i2c_proc_real,
+        &i2c_sysctl_real, NULL, &w83781d_pwm},
+       {W83781D_SYSCTL_SENS1, "sensor1", NULL, 0, 0644, NULL, &i2c_proc_real,
+        &i2c_sysctl_real, NULL, &w83781d_sens},
+       {W83781D_SYSCTL_SENS2, "sensor2", NULL, 0, 0644, NULL, &i2c_proc_real,
+        &i2c_sysctl_real, NULL, &w83781d_sens},
+       {W83781D_SYSCTL_SENS3, "sensor3", NULL, 0, 0644, NULL, &i2c_proc_real,
+        &i2c_sysctl_real, NULL, &w83781d_sens},
+       {0}
+};
+
+static ctl_table w83783s_dir_table_template[] = {
+       {W83781D_SYSCTL_IN0, "in0", NULL, 0, 0644, NULL, &i2c_proc_real,
+        &i2c_sysctl_real, NULL, &w83781d_in},
+       /* no in1 to maintain compatibility with 781d and 782d. */
+       {W83781D_SYSCTL_IN2, "in2", NULL, 0, 0644, NULL, &i2c_proc_real,
+        &i2c_sysctl_real, NULL, &w83781d_in},
+       {W83781D_SYSCTL_IN3, "in3", NULL, 0, 0644, NULL, &i2c_proc_real,
+        &i2c_sysctl_real, NULL, &w83781d_in},
+       {W83781D_SYSCTL_IN4, "in4", NULL, 0, 0644, NULL, &i2c_proc_real,
+        &i2c_sysctl_real, NULL, &w83781d_in},
+       {W83781D_SYSCTL_IN5, "in5", NULL, 0, 0644, NULL, &i2c_proc_real,
+        &i2c_sysctl_real, NULL, &w83781d_in},
+       {W83781D_SYSCTL_IN6, "in6", NULL, 0, 0644, NULL, &i2c_proc_real,
+        &i2c_sysctl_real, NULL, &w83781d_in},
+       {W83781D_SYSCTL_FAN1, "fan1", NULL, 0, 0644, NULL, &i2c_proc_real,
+        &i2c_sysctl_real, NULL, &w83781d_fan},
+       {W83781D_SYSCTL_FAN2, "fan2", NULL, 0, 0644, NULL, &i2c_proc_real,
+        &i2c_sysctl_real, NULL, &w83781d_fan},
+       {W83781D_SYSCTL_FAN3, "fan3", NULL, 0, 0644, NULL, &i2c_proc_real,
+        &i2c_sysctl_real, NULL, &w83781d_fan},
+       {W83781D_SYSCTL_TEMP1, "temp1", NULL, 0, 0644, NULL, &i2c_proc_real,
+        &i2c_sysctl_real, NULL, &w83781d_temp},
+       {W83781D_SYSCTL_TEMP2, "temp2", NULL, 0, 0644, NULL, &i2c_proc_real,
+        &i2c_sysctl_real, NULL, &w83781d_temp_add},
+       {W83781D_SYSCTL_VID, "vid", NULL, 0, 0444, NULL, &i2c_proc_real,
+        &i2c_sysctl_real, NULL, &w83781d_vid},
+       {W83781D_SYSCTL_VRM, "vrm", NULL, 0, 0644, NULL, &i2c_proc_real,
+        &i2c_sysctl_real, NULL, &w83781d_vrm},
+       {W83781D_SYSCTL_FAN_DIV, "fan_div", NULL, 0, 0644, NULL, &i2c_proc_real,
+        &i2c_sysctl_real, NULL, &w83781d_fan_div},
+       {W83781D_SYSCTL_ALARMS, "alarms", NULL, 0, 0444, NULL, &i2c_proc_real,
+        &i2c_sysctl_real, NULL, &w83781d_alarms},
+       {W83781D_SYSCTL_BEEP, "beep", NULL, 0, 0644, NULL, &i2c_proc_real,
+        &i2c_sysctl_real, NULL, &w83781d_beep},
+       {W83781D_SYSCTL_PWM1, "pwm1", NULL, 0, 0644, NULL, &i2c_proc_real,
+        &i2c_sysctl_real, NULL, &w83781d_pwm},
+       {W83781D_SYSCTL_PWM2, "pwm2", NULL, 0, 0644, NULL, &i2c_proc_real,
+        &i2c_sysctl_real, NULL, &w83781d_pwm},
+       {W83781D_SYSCTL_SENS1, "sensor1", NULL, 0, 0644, NULL, &i2c_proc_real,
+        &i2c_sysctl_real, NULL, &w83781d_sens},
+       {W83781D_SYSCTL_SENS2, "sensor2", NULL, 0, 0644, NULL, &i2c_proc_real,
+        &i2c_sysctl_real, NULL, &w83781d_sens},
+       {0}
+};
+
+/* similar to w83782d but no fan3, no vid */
+static ctl_table w83697hf_dir_table_template[] = {
+       {W83781D_SYSCTL_IN0, "in0", NULL, 0, 0644, NULL, &i2c_proc_real,
+        &i2c_sysctl_real, NULL, &w83781d_in},
+       /* no in1 to maintain compatibility with 781d and 782d. */
+       {W83781D_SYSCTL_IN2, "in2", NULL, 0, 0644, NULL, &i2c_proc_real,
+        &i2c_sysctl_real, NULL, &w83781d_in},
+       {W83781D_SYSCTL_IN3, "in3", NULL, 0, 0644, NULL, &i2c_proc_real,
+        &i2c_sysctl_real, NULL, &w83781d_in},
+       {W83781D_SYSCTL_IN4, "in4", NULL, 0, 0644, NULL, &i2c_proc_real,
+        &i2c_sysctl_real, NULL, &w83781d_in},
+       {W83781D_SYSCTL_IN5, "in5", NULL, 0, 0644, NULL, &i2c_proc_real,
+        &i2c_sysctl_real, NULL, &w83781d_in},
+       {W83781D_SYSCTL_IN6, "in6", NULL, 0, 0644, NULL, &i2c_proc_real,
+        &i2c_sysctl_real, NULL, &w83781d_in},
+       {W83781D_SYSCTL_IN7, "in7", NULL, 0, 0644, NULL, &i2c_proc_real,
+        &i2c_sysctl_real, NULL, &w83781d_in},
+       {W83781D_SYSCTL_IN8, "in8", NULL, 0, 0644, NULL, &i2c_proc_real,
+        &i2c_sysctl_real, NULL, &w83781d_in},
+       {W83781D_SYSCTL_FAN1, "fan1", NULL, 0, 0644, NULL, &i2c_proc_real,
+        &i2c_sysctl_real, NULL, &w83781d_fan},
+       {W83781D_SYSCTL_FAN2, "fan2", NULL, 0, 0644, NULL, &i2c_proc_real,
+        &i2c_sysctl_real, NULL, &w83781d_fan},
+       {W83781D_SYSCTL_TEMP1, "temp1", NULL, 0, 0644, NULL, &i2c_proc_real,
+        &i2c_sysctl_real, NULL, &w83781d_temp},
+       {W83781D_SYSCTL_TEMP2, "temp2", NULL, 0, 0644, NULL, &i2c_proc_real,
+        &i2c_sysctl_real, NULL, &w83781d_temp_add},
+       {W83781D_SYSCTL_FAN_DIV, "fan_div", NULL, 0, 0644, NULL, &i2c_proc_real,
+        &i2c_sysctl_real, NULL, &w83781d_fan_div},
+       {W83781D_SYSCTL_ALARMS, "alarms", NULL, 0, 0444, NULL, &i2c_proc_real,
+        &i2c_sysctl_real, NULL, &w83781d_alarms},
+       {W83781D_SYSCTL_BEEP, "beep", NULL, 0, 0644, NULL, &i2c_proc_real,
+        &i2c_sysctl_real, NULL, &w83781d_beep},
+       {W83781D_SYSCTL_PWM1, "pwm1", NULL, 0, 0644, NULL, &i2c_proc_real,
+        &i2c_sysctl_real, NULL, &w83781d_pwm},
+       {W83781D_SYSCTL_PWM2, "pwm2", NULL, 0, 0644, NULL, &i2c_proc_real,
+        &i2c_sysctl_real, NULL, &w83781d_pwm},
+       {W83781D_SYSCTL_SENS1, "sensor1", NULL, 0, 0644, NULL, &i2c_proc_real,
+        &i2c_sysctl_real, NULL, &w83781d_sens},
+       {W83781D_SYSCTL_SENS2, "sensor2", NULL, 0, 0644, NULL, &i2c_proc_real,
+        &i2c_sysctl_real, NULL, &w83781d_sens},
+       {0}
+};
+
+
+/* This function is called when:
+     * w83781d_driver is inserted (when this module is loaded), for each
+       available adapter
+     * when a new adapter is inserted (and w83781d_driver is still present) */
+static int w83781d_attach_adapter(struct i2c_adapter *adapter)
+{
+       return i2c_detect(adapter, &addr_data, w83781d_detect);
+}
+
+static int w83781d_detect(struct i2c_adapter *adapter, int address,
+                  unsigned short flags, int kind)
+{
+       int i, val1 = 0, val2, id;
+       struct i2c_client *new_client;
+       struct w83781d_data *data;
+       int err = 0;
+       const char *type_name = "";
+       const char *client_name = "";
+       int is_isa = i2c_is_isa_adapter(adapter);
+       enum vendor { winbond, asus } vendid;
+
+       if (!is_isa
+           && !i2c_check_functionality(adapter,
+                                       I2C_FUNC_SMBUS_BYTE_DATA)) goto
+                   ERROR0;
+
+       if (is_isa) {
+               if (!request_region(address, W83781D_EXTENT, "w83781d"))
+                       goto ERROR0;
+               release_region(address, W83781D_EXTENT);
+       }
+
+       /* Probe whether there is anything available on this address. Already
+          done for SMBus clients */
+       if (kind < 0) {
+               if (is_isa) {
+
+#define REALLY_SLOW_IO
+                       /* We need the timeouts for at least some LM78-like chips. But only
+                          if we read 'undefined' registers. */
+                       i = inb_p(address + 1);
+                       if (inb_p(address + 2) != i)
+                               goto ERROR0;
+                       if (inb_p(address + 3) != i)
+                               goto ERROR0;
+                       if (inb_p(address + 7) != i)
+                               goto ERROR0;
+#undef REALLY_SLOW_IO
+
+                       /* Let's just hope nothing breaks here */
+                       i = inb_p(address + 5) & 0x7f;
+                       outb_p(~i & 0x7f, address + 5);
+                       if ((inb_p(address + 5) & 0x7f) != (~i & 0x7f)) {
+                               outb_p(i, address + 5);
+                               return 0;
+                       }
+               }
+       }
+
+       /* OK. For now, we presume we have a valid client. We now create the
+          client structure, even though we cannot fill it completely yet.
+          But it allows us to access w83781d_{read,write}_value. */
+
+       if (!(new_client = kmalloc(sizeof(struct i2c_client) +
+                                  sizeof(struct w83781d_data),
+                                  GFP_KERNEL))) {
+               err = -ENOMEM;
+               goto ERROR0;
+       }
+
+       data = (struct w83781d_data *) (new_client + 1);
+       new_client->addr = address;
+       init_MUTEX(&data->lock);
+       new_client->data = data;
+       new_client->adapter = adapter;
+       new_client->driver = &w83781d_driver;
+       new_client->flags = 0;
+
+       /* Now, we do the remaining detection. */
+
+       /* The w8378?d may be stuck in some other bank than bank 0. This may
+          make reading other information impossible. Specify a force=... or
+          force_*=... parameter, and the Winbond will be reset to the right
+          bank. */
+       if (kind < 0) {
+               if (w83781d_read_value(new_client, W83781D_REG_CONFIG) &
+                   0x80) goto ERROR1;
+               val1 = w83781d_read_value(new_client, W83781D_REG_BANK);
+               val2 = w83781d_read_value(new_client, W83781D_REG_CHIPMAN);
+               /* Check for Winbond or Asus ID if in bank 0 */
+               if ((!(val1 & 0x07)) &&
+                   (((!(val1 & 0x80)) && (val2 != 0xa3) && (val2 != 0xc3) 
+                        && (val2 != 0x94))
+                    || ((val1 & 0x80) && (val2 != 0x5c) && (val2 != 0x12)
+                        && (val2 != 0x06)))) goto ERROR1;
+               /* If Winbond SMBus, check address at 0x48. Asus doesn't support */
+               if ((!is_isa) && (((!(val1 & 0x80)) && (val2 == 0xa3)) ||
+                                 ((val1 & 0x80) && (val2 == 0x5c)))) {
+                       if (w83781d_read_value
+                           (new_client, W83781D_REG_I2C_ADDR) != address)
+                               goto ERROR1;
+               }
+       }
+
+       /* We have either had a force parameter, or we have already detected the
+          Winbond. Put it now into bank 0 and Vendor ID High Byte */
+       w83781d_write_value(new_client, W83781D_REG_BANK,
+                           (w83781d_read_value(new_client,
+                                               W83781D_REG_BANK) & 0x78) |
+                           0x80);
+
+       /* Determine the chip type. */
+       if (kind <= 0) {
+               /* get vendor ID */
+               val2 = w83781d_read_value(new_client, W83781D_REG_CHIPMAN);
+               if (val2 == 0x5c)
+                       vendid = winbond;
+               else if ((val2 == 0x12) || (val2 == 0x06))
+                       vendid = asus;
+               else
+                       goto ERROR1;
+               /* mask off lower bit, not reliable */
+               val1 =
+                   w83781d_read_value(new_client,
+                                      W83781D_REG_WCHIPID) & 0xfe;
+               if (val1 == 0x10 && vendid == winbond)
+                       kind = w83781d;
+               else if (val1 == 0x30 && vendid == winbond)
+                       kind = w83782d;
+               else if (val1 == 0x40 && vendid == winbond && !is_isa)
+                       kind = w83783s;
+               else if (val1 == 0x20 && vendid == winbond)
+                       kind = w83627hf;
+               else if (val1 == 0x30 && vendid == asus && !is_isa)
+                       kind = as99127f;
+               else if (val1 == 0x60 && vendid == winbond && is_isa)
+                       kind = w83697hf;
+               else {
+                       if (kind == 0)
+                               printk
+                                   (KERN_WARNING "w83781d.o: Ignoring 'force' parameter for unknown chip at"
+                                    "adapter %d, address 0x%02x\n",
+                                    i2c_adapter_id(adapter), address);
+                       goto ERROR1;
+               }
+       }
+
+       if (kind == w83781d) {
+               type_name = "w83781d";
+               client_name = "W83781D chip";
+       } else if (kind == w83782d) {
+               type_name = "w83782d";
+               client_name = "W83782D chip";
+       } else if (kind == w83783s) {
+               type_name = "w83783s";
+               client_name = "W83783S chip";
+       } else if (kind == w83627hf) {
+               type_name = "w83627hf";
+               client_name = "W83627HF chip";
+       } else if (kind == as99127f) {
+               type_name = "as99127f";
+               client_name = "AS99127F chip";
+       } else if (kind == w83697hf) {
+               type_name = "w83697hf";
+               client_name = "W83697HF chip";
+       } else {
+               pr_debug(KERN_ERR "w83781d.o: Internal error: unknown kind (%d)?!?",
+                      kind);
+               goto ERROR1;
+       }
+
+       /* Reserve the ISA region */
+       if (is_isa)
+               request_region(address, W83781D_EXTENT, type_name);
+
+       /* Fill in the remaining client fields and put it into the global list */
+       strcpy(new_client->name, client_name);
+       data->type = kind;
+
+       new_client->id = w83781d_id++;
+       data->valid = 0;
+       init_MUTEX(&data->update_lock);
+
+       /* Tell the I2C layer a new client has arrived */
+       if ((err = i2c_attach_client(new_client)))
+               goto ERROR3;
+
+       /* attach secondary i2c lm75-like clients */
+       if (!is_isa) {
+               if (!(data->lm75 = kmalloc(2 * sizeof(struct i2c_client),
+                                          GFP_KERNEL))) {
+                       err = -ENOMEM;
+                       goto ERROR4;
+               }
+               id = i2c_adapter_id(adapter);
+               if(force_subclients[0] == id && force_subclients[1] == address) {
+                       for(i = 2; i <= 3; i++) {
+                               if(force_subclients[i] < 0x48 ||
+                                  force_subclients[i] > 0x4f) {
+                                       printk(KERN_ERR "w83781d.o: Invalid subclient address %d; must be 0x48-0x4f\n",
+                                               force_subclients[i]);
+                                       goto ERROR5;
+                               }
+                       }
+                       w83781d_write_value(new_client,
+                                           W83781D_REG_I2C_SUBADDR,
+                                           (force_subclients[2] & 0x07) |
+                                           ((force_subclients[3] & 0x07) <<4));
+                       data->lm75[0].addr = force_subclients[2];
+               } else {
+                       val1 = w83781d_read_value(new_client,
+                                                 W83781D_REG_I2C_SUBADDR);
+                       data->lm75[0].addr = 0x48 + (val1 & 0x07);
+               }
+               if (kind != w83783s) {
+                       if(force_subclients[0] == id &&
+                          force_subclients[1] == address) {
+                               data->lm75[1].addr = force_subclients[3];
+                       } else {
+                               data->lm75[1].addr = 0x48 + ((val1 >> 4) & 0x07);
+                       }
+                       if(data->lm75[0].addr == data->lm75[1].addr) {
+                               printk(KERN_ERR "w83781d.o: Duplicate addresses 0x%x for subclients.\n",
+                                       data->lm75[0].addr);
+                               goto ERROR5;
+                       }
+               }
+               if (kind == w83781d)
+                       client_name = "W83781D subclient";
+               else if (kind == w83782d)
+                       client_name = "W83782D subclient";
+               else if (kind == w83783s)
+                       client_name = "W83783S subclient";
+               else if (kind == w83627hf)
+                       client_name = "W83627HF subclient";
+               else if (kind == as99127f)
+                       client_name = "AS99127F subclient";
+
+               for (i = 0; i <= 1; i++) {
+                       data->lm75[i].data = NULL;      /* store all data in w83781d */
+                       data->lm75[i].adapter = adapter;
+                       data->lm75[i].driver = &w83781d_driver;
+                       data->lm75[i].flags = 0;
+                       strcpy(data->lm75[i].name, client_name);
+                       data->lm75[i].id = w83781d_id++;
+                       if ((err = i2c_attach_client(&(data->lm75[i])))) {
+                               printk(KERN_ERR "w83781d.o: Subclient %d registration at address 0x%x failed.\n",
+                                      i, data->lm75[i].addr);
+                               if (i == 1)
+                                       goto ERROR6;
+                               goto ERROR5;
+                       }
+                       if (kind == w83783s)
+                               break;
+               }
+       } else {
+               data->lm75 = NULL;
+       }
+
+       /* Register a new directory entry with module sensors */
+       if ((i = i2c_register_entry(new_client,
+                                       type_name,
+                                       (kind == as99127f) ?
+                                          as99127f_dir_table_template :
+                                       (kind == w83781d) ?
+                                          w83781d_dir_table_template :
+                                       (kind == w83783s) ?
+                                          w83783s_dir_table_template :
+                                       (kind == w83697hf) ?
+                                          w83697hf_dir_table_template :
+                                       (is_isa || kind == w83627hf) ?
+                                          w83782d_isa_dir_table_template :
+                                          w83782d_i2c_dir_table_template,
+                                       THIS_MODULE)) < 0) {
+               err = i;
+               goto ERROR7;
+       }
+       data->sysctl_id = i;
+
+       /* Initialize the chip */
+       w83781d_init_client(new_client);
+       return 0;
+
+/* OK, this is not exactly good programming practice, usually. But it is
+   very code-efficient in this case. */
+
+      ERROR7:
+       if (!is_isa)
+               i2c_detach_client(&
+                                 (((struct
+                                    w83781d_data *) (new_client->data))->
+                                  lm75[1]));
+      ERROR6:
+       if (!is_isa)
+               i2c_detach_client(&
+                                 (((struct
+                                    w83781d_data *) (new_client->data))->
+                                  lm75[0]));
+      ERROR5:
+       if (!is_isa)
+               kfree(((struct w83781d_data *) (new_client->data))->lm75);
+      ERROR4:
+       i2c_detach_client(new_client);
+      ERROR3:
+       if (is_isa)
+               release_region(address, W83781D_EXTENT);
+      ERROR1:
+       kfree(new_client);
+      ERROR0:
+       return err;
+}
+
+static int w83781d_detach_client(struct i2c_client *client)
+{
+       int err;
+
+       i2c_deregister_entry(((struct w83781d_data *) (client->data))->
+                                sysctl_id);
+
+       if ((err = i2c_detach_client(client))) {
+               printk
+                   (KERN_ERR "w83781d.o: Client deregistration failed, client not detached.\n");
+               return err;
+       }
+
+       if(i2c_is_isa_client(client)) {
+               release_region(client->addr, W83781D_EXTENT);
+       } else {
+               i2c_detach_client(&
+                                 (((struct
+                                    w83781d_data *) (client->data))->
+                                  lm75[0]));
+               if((((struct w83781d_data *) (client->data))->type) != w83783s)
+                       i2c_detach_client(&
+                                 (((struct
+                                    w83781d_data *) (client->data))->
+                                  lm75[1]));
+               kfree(((struct w83781d_data *) (client->data))->lm75);
+       }
+       kfree(client);
+
+       return 0;
+}
+
+static inline u16 swap_bytes(u16 val)
+{
+       return (val >> 8) | (val << 8);
+}
+
+/* The SMBus locks itself, usually, but nothing may access the Winbond between
+   bank switches. ISA access must always be locked explicitly! 
+   We ignore the W83781D BUSY flag at this moment - it could lead to deadlocks,
+   would slow down the W83781D access and should not be necessary. 
+   There are some ugly typecasts here, but the good news is - they should
+   nowhere else be necessary! */
+static int w83781d_read_value(struct i2c_client *client, u16 reg)
+{
+       int res, word_sized, bank;
+       struct i2c_client *cl;
+
+       down(&(((struct w83781d_data *) (client->data))->lock));
+       if (i2c_is_isa_client(client)) {
+               word_sized = (((reg & 0xff00) == 0x100)
+                             || ((reg & 0xff00) == 0x200))
+                   && (((reg & 0x00ff) == 0x50)
+                       || ((reg & 0x00ff) == 0x53)
+                       || ((reg & 0x00ff) == 0x55));
+               if (reg & 0xff00) {
+                       outb_p(W83781D_REG_BANK,
+                              client->addr + W83781D_ADDR_REG_OFFSET);
+                       outb_p(reg >> 8,
+                              client->addr + W83781D_DATA_REG_OFFSET);
+               }
+               outb_p(reg & 0xff, client->addr + W83781D_ADDR_REG_OFFSET);
+               res = inb_p(client->addr + W83781D_DATA_REG_OFFSET);
+               if (word_sized) {
+                       outb_p((reg & 0xff) + 1,
+                              client->addr + W83781D_ADDR_REG_OFFSET);
+                       res =
+                           (res << 8) + inb_p(client->addr +
+                                              W83781D_DATA_REG_OFFSET);
+               }
+               if (reg & 0xff00) {
+                       outb_p(W83781D_REG_BANK,
+                              client->addr + W83781D_ADDR_REG_OFFSET);
+                       outb_p(0, client->addr + W83781D_DATA_REG_OFFSET);
+               }
+       } else {
+               bank = (reg >> 8) & 0x0f;
+               if (bank > 2)
+                       /* switch banks */
+                       i2c_smbus_write_byte_data(client, W83781D_REG_BANK,
+                                                 bank);
+               if (bank == 0 || bank > 2) {
+                       res = i2c_smbus_read_byte_data(client, reg & 0xff);
+               } else {
+                       /* switch to subclient */
+                       cl =
+                           &(((struct w83781d_data *) (client->data))->
+                             lm75[bank - 1]);
+                       /* convert from ISA to LM75 I2C addresses */
+                       switch (reg & 0xff) {
+                       case 0x50: /* TEMP */
+                               res =
+                                   swap_bytes(i2c_smbus_read_word_data
+                                              (cl, 0));
+                               break;
+                       case 0x52: /* CONFIG */
+                               res = i2c_smbus_read_byte_data(cl, 1);
+                               break;
+                       case 0x53: /* HYST */
+                               res =
+                                   swap_bytes(i2c_smbus_read_word_data
+                                              (cl, 2));
+                               break;
+                       case 0x55: /* OVER */
+                       default:
+                               res =
+                                   swap_bytes(i2c_smbus_read_word_data
+                                              (cl, 3));
+                               break;
+                       }
+               }
+               if (bank > 2)
+                       i2c_smbus_write_byte_data(client, W83781D_REG_BANK,
+                                                 0);
+       }
+       up(&(((struct w83781d_data *) (client->data))->lock));
+       return res;
+}
+
+static int w83781d_write_value(struct i2c_client *client, u16 reg, u16 value)
+{
+       int word_sized, bank;
+       struct i2c_client *cl;
+
+       down(&(((struct w83781d_data *) (client->data))->lock));
+       if (i2c_is_isa_client(client)) {
+               word_sized = (((reg & 0xff00) == 0x100)
+                             || ((reg & 0xff00) == 0x200))
+                   && (((reg & 0x00ff) == 0x53)
+                       || ((reg & 0x00ff) == 0x55));
+               if (reg & 0xff00) {
+                       outb_p(W83781D_REG_BANK,
+                              client->addr + W83781D_ADDR_REG_OFFSET);
+                       outb_p(reg >> 8,
+                              client->addr + W83781D_DATA_REG_OFFSET);
+               }
+               outb_p(reg & 0xff, client->addr + W83781D_ADDR_REG_OFFSET);
+               if (word_sized) {
+                       outb_p(value >> 8,
+                              client->addr + W83781D_DATA_REG_OFFSET);
+                       outb_p((reg & 0xff) + 1,
+                              client->addr + W83781D_ADDR_REG_OFFSET);
+               }
+               outb_p(value & 0xff,
+                      client->addr + W83781D_DATA_REG_OFFSET);
+               if (reg & 0xff00) {
+                       outb_p(W83781D_REG_BANK,
+                              client->addr + W83781D_ADDR_REG_OFFSET);
+                       outb_p(0, client->addr + W83781D_DATA_REG_OFFSET);
+               }
+       } else {
+               bank = (reg >> 8) & 0x0f;
+               if (bank > 2)
+                       /* switch banks */
+                       i2c_smbus_write_byte_data(client, W83781D_REG_BANK,
+                                                 bank);
+               if (bank == 0 || bank > 2) {
+                       i2c_smbus_write_byte_data(client, reg & 0xff,
+                                                 value & 0xff);
+               } else {
+                       /* switch to subclient */
+                       cl = &(((struct w83781d_data *) (client->data))->
+                             lm75[bank - 1]);
+                       /* convert from ISA to LM75 I2C addresses */
+                       switch (reg & 0xff) {
+                       case 0x52: /* CONFIG */
+                               i2c_smbus_write_byte_data(cl, 1,
+                                                         value & 0xff);
+                               break;
+                       case 0x53: /* HYST */
+                               i2c_smbus_write_word_data(cl, 2,
+                                                         swap_bytes(value));
+                               break;
+                       case 0x55: /* OVER */
+                               i2c_smbus_write_word_data(cl, 3,
+                                                         swap_bytes(value));
+                               break;
+                       }
+               }
+               if (bank > 2)
+                       i2c_smbus_write_byte_data(client, W83781D_REG_BANK,
+                                                 0);
+       }
+       up(&(((struct w83781d_data *) (client->data))->lock));
+       return 0;
+}
+
+/* Called when we have found a new W83781D. It should set limits, etc. */
+static void w83781d_init_client(struct i2c_client *client)
+{
+       struct w83781d_data *data = client->data;
+       int vid = 0, i;
+       int type = data->type;
+       u8 tmp;
+
+       if(init && type != as99127f) { /* this resets registers we don't have
+                                         documentation for on the as99127f */
+               /* save this register */
+               i = w83781d_read_value(client, W83781D_REG_BEEP_CONFIG);
+               /* Reset all except Watchdog values and last conversion values
+                  This sets fan-divs to 2, among others */
+               w83781d_write_value(client, W83781D_REG_CONFIG, 0x80);
+               /* Restore the register and disable power-on abnormal beep.
+                  This saves FAN 1/2/3 input/output values set by BIOS. */
+               w83781d_write_value(client, W83781D_REG_BEEP_CONFIG, i | 0x80);
+               /* Disable master beep-enable (reset turns it on).
+                  Individual beeps should be reset to off but for some reason
+                  disabling this bit helps some people not get beeped */
+               w83781d_write_value(client, W83781D_REG_BEEP_INTS2, 0);
+       }
+
+       if (type != w83697hf) {
+               vid = w83781d_read_value(client, W83781D_REG_VID_FANDIV) & 0x0f;
+               vid |=
+                   (w83781d_read_value(client, W83781D_REG_CHIPID) & 0x01) << 4;
+               data->vrm = DEFAULT_VRM;
+               vid = vid_from_reg(vid, data->vrm);
+       }
+
+       if ((type != w83781d) && (type != as99127f)) {
+               tmp = w83781d_read_value(client, W83781D_REG_SCFG1);
+               for (i = 1; i <= 3; i++) {
+                       if (!(tmp & BIT_SCFG1[i - 1])) {
+                               data->sens[i - 1] = W83781D_DEFAULT_BETA;
+                       } else {
+                               if (w83781d_read_value
+                                   (client,
+                                    W83781D_REG_SCFG2) & BIT_SCFG2[i - 1])
+                                       data->sens[i - 1] = 1;
+                               else
+                                       data->sens[i - 1] = 2;
+                       }
+                       if ((type == w83783s || type == w83697hf) && (i == 2))
+                               break;
+               }
+       }
+#ifdef W83781D_RT
+/*
+   Fill up the RT Tables.
+   We assume that they are 32 bytes long, in order for temp 1-3.
+   Data sheet documentation is sparse.
+   We also assume that it is only for the 781D although I suspect
+   that the others support it as well....
+*/
+
+       if (init && type == w83781d) {
+               u16 k = 0;
+/*
+    Auto-indexing doesn't seem to work...
+    w83781d_write_value(client,W83781D_REG_RT_IDX,0);
+*/
+               for (i = 0; i < 3; i++) {
+                       int j;
+                       for (j = 0; j < 32; j++) {
+                               w83781d_write_value(client,
+                                                   W83781D_REG_RT_IDX,
+                                                   k++);
+                               data->rt[i][j] =
+                                   w83781d_read_value(client,
+                                                      W83781D_REG_RT_VAL);
+                       }
+               }
+       }
+#endif                         /* W83781D_RT */
+
+       if(init) {
+               w83781d_write_value(client, W83781D_REG_IN_MIN(0),
+                                   IN_TO_REG(W83781D_INIT_IN_MIN_0));
+               w83781d_write_value(client, W83781D_REG_IN_MAX(0),
+                                   IN_TO_REG(W83781D_INIT_IN_MAX_0));
+               if (type != w83783s && type != w83697hf) {
+                       w83781d_write_value(client, W83781D_REG_IN_MIN(1),
+                                           IN_TO_REG(W83781D_INIT_IN_MIN_1));
+                       w83781d_write_value(client, W83781D_REG_IN_MAX(1),
+                                           IN_TO_REG(W83781D_INIT_IN_MAX_1));
+               }
+
+               w83781d_write_value(client, W83781D_REG_IN_MIN(2),
+                                   IN_TO_REG(W83781D_INIT_IN_MIN_2));
+               w83781d_write_value(client, W83781D_REG_IN_MAX(2),
+                                   IN_TO_REG(W83781D_INIT_IN_MAX_2));
+               w83781d_write_value(client, W83781D_REG_IN_MIN(3),
+                                   IN_TO_REG(W83781D_INIT_IN_MIN_3));
+               w83781d_write_value(client, W83781D_REG_IN_MAX(3),
+                                   IN_TO_REG(W83781D_INIT_IN_MAX_3));
+               w83781d_write_value(client, W83781D_REG_IN_MIN(4),
+                                   IN_TO_REG(W83781D_INIT_IN_MIN_4));
+               w83781d_write_value(client, W83781D_REG_IN_MAX(4),
+                                   IN_TO_REG(W83781D_INIT_IN_MAX_4));
+               if (type == w83781d || type == as99127f) {
+                       w83781d_write_value(client, W83781D_REG_IN_MIN(5),
+                                           IN_TO_REG(W83781D_INIT_IN_MIN_5));
+                       w83781d_write_value(client, W83781D_REG_IN_MAX(5),
+                                           IN_TO_REG(W83781D_INIT_IN_MAX_5));
+               } else {
+                       w83781d_write_value(client, W83781D_REG_IN_MIN(5),
+                                           IN_TO_REG(W83782D_INIT_IN_MIN_5));
+                       w83781d_write_value(client, W83781D_REG_IN_MAX(5),
+                                           IN_TO_REG(W83782D_INIT_IN_MAX_5));
+               }
+               if (type == w83781d || type == as99127f) {
+                       w83781d_write_value(client, W83781D_REG_IN_MIN(6),
+                                           IN_TO_REG(W83781D_INIT_IN_MIN_6));
+                       w83781d_write_value(client, W83781D_REG_IN_MAX(6),
+                                           IN_TO_REG(W83781D_INIT_IN_MAX_6));
+               } else {
+                       w83781d_write_value(client, W83781D_REG_IN_MIN(6),
+                                           IN_TO_REG(W83782D_INIT_IN_MIN_6));
+                       w83781d_write_value(client, W83781D_REG_IN_MAX(6),
+                                           IN_TO_REG(W83782D_INIT_IN_MAX_6));
+               }
+               if ((type == w83782d) || (type == w83627hf) ||
+                   (type == w83697hf)) {
+                       w83781d_write_value(client, W83781D_REG_IN_MIN(7),
+                                           IN_TO_REG(W83781D_INIT_IN_MIN_7));
+                       w83781d_write_value(client, W83781D_REG_IN_MAX(7),
+                                           IN_TO_REG(W83781D_INIT_IN_MAX_7));
+                       w83781d_write_value(client, W83781D_REG_IN_MIN(8),
+                                           IN_TO_REG(W83781D_INIT_IN_MIN_8));
+                       w83781d_write_value(client, W83781D_REG_IN_MAX(8),
+                                           IN_TO_REG(W83781D_INIT_IN_MAX_8));
+                       w83781d_write_value(client, W83781D_REG_VBAT,
+                           (w83781d_read_value(client, W83781D_REG_VBAT) | 0x01));
+               }
+               w83781d_write_value(client, W83781D_REG_FAN_MIN(1),
+                                   FAN_TO_REG(W83781D_INIT_FAN_MIN_1, 2));
+               w83781d_write_value(client, W83781D_REG_FAN_MIN(2),
+                                   FAN_TO_REG(W83781D_INIT_FAN_MIN_2, 2));
+               if (type != w83697hf) {
+                       w83781d_write_value(client, W83781D_REG_FAN_MIN(3),
+                                   FAN_TO_REG(W83781D_INIT_FAN_MIN_3, 2));
+               }
+
+               w83781d_write_value(client, W83781D_REG_TEMP_OVER,
+                                   TEMP_TO_REG(W83781D_INIT_TEMP_OVER));
+               w83781d_write_value(client, W83781D_REG_TEMP_HYST,
+                                   TEMP_TO_REG(W83781D_INIT_TEMP_HYST));
+
+               if (type == as99127f) {
+                       w83781d_write_value(client, W83781D_REG_TEMP2_OVER,
+                                           AS99127_TEMP_ADD_TO_REG
+                                           (W83781D_INIT_TEMP2_OVER));
+                       w83781d_write_value(client, W83781D_REG_TEMP2_HYST,
+                                           AS99127_TEMP_ADD_TO_REG
+                                           (W83781D_INIT_TEMP2_HYST));
+               } else {
+                       w83781d_write_value(client, W83781D_REG_TEMP2_OVER,
+                                           TEMP_ADD_TO_REG
+                                           (W83781D_INIT_TEMP2_OVER));
+                       w83781d_write_value(client, W83781D_REG_TEMP2_HYST,
+                                           TEMP_ADD_TO_REG
+                                           (W83781D_INIT_TEMP2_HYST));
+               }
+               w83781d_write_value(client, W83781D_REG_TEMP2_CONFIG, 0x00);
+
+               if (type == as99127f) {
+                       w83781d_write_value(client, W83781D_REG_TEMP3_OVER,
+                                           AS99127_TEMP_ADD_TO_REG
+                                           (W83781D_INIT_TEMP3_OVER));
+                       w83781d_write_value(client, W83781D_REG_TEMP3_HYST,
+                                           AS99127_TEMP_ADD_TO_REG
+                                           (W83781D_INIT_TEMP3_HYST));
+               } else if (type != w83783s && type != w83697hf) {
+                       w83781d_write_value(client, W83781D_REG_TEMP3_OVER,
+                                           TEMP_ADD_TO_REG
+                                           (W83781D_INIT_TEMP3_OVER));
+                       w83781d_write_value(client, W83781D_REG_TEMP3_HYST,
+                                           TEMP_ADD_TO_REG
+                                           (W83781D_INIT_TEMP3_HYST));
+               }
+               if (type != w83783s && type != w83697hf) {
+                       w83781d_write_value(client, W83781D_REG_TEMP3_CONFIG,
+                                           0x00);
+               }
+               if (type != w83781d) {
+                       /* enable PWM2 control (can't hurt since PWM reg
+                          should have been reset to 0xff) */
+                       w83781d_write_value(client, W83781D_REG_PWMCLK12, 0x19);
+                       /* enable comparator mode for temp2 and temp3 so
+                          alarm indication will work correctly */
+                       w83781d_write_value(client, W83781D_REG_IRQ, 0x41);
+               }
+       }
+
+       /* Start monitoring */
+       w83781d_write_value(client, W83781D_REG_CONFIG,
+                           (w83781d_read_value(client,
+                                               W83781D_REG_CONFIG) & 0xf7)
+                           | 0x01);
+}
+
+static void w83781d_update_client(struct i2c_client *client)
+{
+       struct w83781d_data *data = client->data;
+       int i;
+
+       down(&data->update_lock);
+
+       if (time_after(jiffies - data->last_updated, HZ + HZ / 2) ||
+           time_before(jiffies, data->last_updated) || !data->valid) {
+               pr_debug(KERN_DEBUG "Starting device update\n");
+
+               for (i = 0; i <= 8; i++) {
+                       if ((data->type == w83783s || data->type == w83697hf)
+                           && (i == 1))
+                               continue;       /* 783S has no in1 */
+                       data->in[i] =
+                           w83781d_read_value(client, W83781D_REG_IN(i));
+                       data->in_min[i] =
+                           w83781d_read_value(client,
+                                              W83781D_REG_IN_MIN(i));
+                       data->in_max[i] =
+                           w83781d_read_value(client,
+                                              W83781D_REG_IN_MAX(i));
+                       if ((data->type != w83782d) && (data->type != w83697hf)
+                           && (data->type != w83627hf) && (i == 6))
+                               break;
+               }
+               for (i = 1; i <= 3; i++) {
+                       data->fan[i - 1] =
+                           w83781d_read_value(client, W83781D_REG_FAN(i));
+                       data->fan_min[i - 1] =
+                           w83781d_read_value(client,
+                                              W83781D_REG_FAN_MIN(i));
+               }
+               if (data->type != w83781d) {
+                       for (i = 1; i <= 4; i++) {
+                               data->pwm[i - 1] =
+                                   w83781d_read_value(client,
+                                                      W83781D_REG_PWM(i));
+                               if (((data->type == w83783s)
+                                    || (data->type == w83627hf)
+                                    || (data->type == as99127f)
+                                    || (data->type == w83697hf)
+                                    || ((data->type == w83782d)
+                                       && i2c_is_isa_client(client)))
+                                   && i == 2)
+                                       break;
+                       }
+               }
+
+               data->temp = w83781d_read_value(client, W83781D_REG_TEMP);
+               data->temp_over =
+                   w83781d_read_value(client, W83781D_REG_TEMP_OVER);
+               data->temp_hyst =
+                   w83781d_read_value(client, W83781D_REG_TEMP_HYST);
+               data->temp_add[0] =
+                   w83781d_read_value(client, W83781D_REG_TEMP2);
+               data->temp_add_over[0] =
+                   w83781d_read_value(client, W83781D_REG_TEMP2_OVER);
+               data->temp_add_hyst[0] =
+                   w83781d_read_value(client, W83781D_REG_TEMP2_HYST);
+               if (data->type != w83783s && data->type != w83697hf) {
+                       data->temp_add[1] =
+                           w83781d_read_value(client, W83781D_REG_TEMP3);
+                       data->temp_add_over[1] =
+                           w83781d_read_value(client, W83781D_REG_TEMP3_OVER);
+                       data->temp_add_hyst[1] =
+                           w83781d_read_value(client, W83781D_REG_TEMP3_HYST);
+               }
+               i = w83781d_read_value(client, W83781D_REG_VID_FANDIV);
+               if (data->type != w83697hf) {
+                       data->vid = i & 0x0f;
+                       data->vid |=
+                           (w83781d_read_value(client, W83781D_REG_CHIPID) & 0x01)
+                           << 4;
+               }
+               data->fan_div[0] = (i >> 4) & 0x03;
+               data->fan_div[1] = (i >> 6) & 0x03;
+               if (data->type != w83697hf) {
+                       data->fan_div[2] = (w83781d_read_value(client,
+                                              W83781D_REG_PIN) >> 6) & 0x03;
+               }
+               if ((data->type != w83781d) && (data->type != as99127f)) {
+                       i = w83781d_read_value(client, W83781D_REG_VBAT);
+                       data->fan_div[0] |= (i >> 3) & 0x04;
+                       data->fan_div[1] |= (i >> 4) & 0x04;
+                       if (data->type != w83697hf)
+                               data->fan_div[2] |= (i >> 5) & 0x04;
+               }
+               data->alarms =
+                   w83781d_read_value(client,
+                                      W83781D_REG_ALARM1) +
+                   (w83781d_read_value(client, W83781D_REG_ALARM2) << 8);
+               if ((data->type == w83782d) || (data->type == w83627hf)) {
+                       data->alarms |=
+                           w83781d_read_value(client,
+                                              W83781D_REG_ALARM3) << 16;
+               }
+               i = w83781d_read_value(client, W83781D_REG_BEEP_INTS2);
+               data->beep_enable = i >> 7;
+               data->beeps = ((i & 0x7f) << 8) +
+                   w83781d_read_value(client, W83781D_REG_BEEP_INTS1);
+               if ((data->type != w83781d) && (data->type != as99127f)) {
+                       data->beeps |=
+                           w83781d_read_value(client,
+                                              W83781D_REG_BEEP_INTS3) << 16;
+               }
+               data->last_updated = jiffies;
+               data->valid = 1;
+       }
+
+       up(&data->update_lock);
+}
+
+
+/* The next few functions are the call-back functions of the /proc/sys and
+   sysctl files. Which function is used is defined in the ctl_table in
+   the extra1 field.
+   Each function must return the magnitude (power of 10 to divide the date
+   with) if it is called with operation==SENSORS_PROC_REAL_INFO. It must
+   put a maximum of *nrels elements in results reflecting the data of this
+   file, and set *nrels to the number it actually put in it, if operation==
+   SENSORS_PROC_REAL_READ. Finally, it must get upto *nrels elements from
+   results and write them to the chip, if operations==SENSORS_PROC_REAL_WRITE.
+   Note that on SENSORS_PROC_REAL_READ, I do not check whether results is
+   large enough (by checking the incoming value of *nrels). This is not very
+   good practice, but as long as you put less than about 5 values in results,
+   you can assume it is large enough. */
+static void w83781d_in(struct i2c_client *client, int operation, int ctl_name,
+               int *nrels_mag, long *results)
+{
+       struct w83781d_data *data = client->data;
+       int nr = ctl_name - W83781D_SYSCTL_IN0;
+
+       if (operation == SENSORS_PROC_REAL_INFO)
+               *nrels_mag = 2;
+       else if (operation == SENSORS_PROC_REAL_READ) {
+               w83781d_update_client(client);
+               results[0] = IN_FROM_REG(data->in_min[nr]);
+               results[1] = IN_FROM_REG(data->in_max[nr]);
+               results[2] = IN_FROM_REG(data->in[nr]);
+               *nrels_mag = 3;
+       } else if (operation == SENSORS_PROC_REAL_WRITE) {
+               if (*nrels_mag >= 1) {
+                       data->in_min[nr] = IN_TO_REG(results[0]);
+                       w83781d_write_value(client, W83781D_REG_IN_MIN(nr),
+                                           data->in_min[nr]);
+               }
+               if (*nrels_mag >= 2) {
+                       data->in_max[nr] = IN_TO_REG(results[1]);
+                       w83781d_write_value(client, W83781D_REG_IN_MAX(nr),
+                                           data->in_max[nr]);
+               }
+       }
+}
+
+static void w83781d_fan(struct i2c_client *client, int operation, int ctl_name,
+                int *nrels_mag, long *results)
+{
+       struct w83781d_data *data = client->data;
+       int nr = ctl_name - W83781D_SYSCTL_FAN1 + 1;
+
+       if (operation == SENSORS_PROC_REAL_INFO)
+               *nrels_mag = 0;
+       else if (operation == SENSORS_PROC_REAL_READ) {
+               w83781d_update_client(client);
+               results[0] = FAN_FROM_REG(data->fan_min[nr - 1],
+                                 DIV_FROM_REG(data->fan_div[nr - 1]));
+               results[1] = FAN_FROM_REG(data->fan[nr - 1],
+                                 DIV_FROM_REG(data->fan_div[nr - 1]));
+               *nrels_mag = 2;
+       } else if (operation == SENSORS_PROC_REAL_WRITE) {
+               if (*nrels_mag >= 1) {
+                       data->fan_min[nr - 1] =
+                            FAN_TO_REG(results[0],
+                                   DIV_FROM_REG(data->fan_div[nr-1]));
+                       w83781d_write_value(client,
+                                           W83781D_REG_FAN_MIN(nr),
+                                           data->fan_min[nr - 1]);
+               }
+       }
+}
+
+static void w83781d_temp(struct i2c_client *client, int operation, int ctl_name,
+                 int *nrels_mag, long *results)
+{
+       struct w83781d_data *data = client->data;
+       if (operation == SENSORS_PROC_REAL_INFO)
+               *nrels_mag = 1;
+       else if (operation == SENSORS_PROC_REAL_READ) {
+               w83781d_update_client(client);
+               results[0] = TEMP_FROM_REG(data->temp_over);
+               results[1] = TEMP_FROM_REG(data->temp_hyst);
+               results[2] = TEMP_FROM_REG(data->temp);
+               *nrels_mag = 3;
+       } else if (operation == SENSORS_PROC_REAL_WRITE) {
+               if (*nrels_mag >= 1) {
+                       data->temp_over = TEMP_TO_REG(results[0]);
+                       w83781d_write_value(client, W83781D_REG_TEMP_OVER,
+                                           data->temp_over);
+               }
+               if (*nrels_mag >= 2) {
+                       data->temp_hyst = TEMP_TO_REG(results[1]);
+                       w83781d_write_value(client, W83781D_REG_TEMP_HYST,
+                                           data->temp_hyst);
+               }
+       }
+}
+
+static void w83781d_temp_add(struct i2c_client *client, int operation,
+                     int ctl_name, int *nrels_mag, long *results)
+{
+       struct w83781d_data *data = client->data;
+       int nr = ctl_name - W83781D_SYSCTL_TEMP2;
+
+       if (operation == SENSORS_PROC_REAL_INFO)
+               *nrels_mag = 1;
+       else if (operation == SENSORS_PROC_REAL_READ) {
+               w83781d_update_client(client);
+               if (data->type == as99127f) {
+                       results[0] =
+                           AS99127_TEMP_ADD_FROM_REG(data->
+                                                     temp_add_over[nr]);
+                       results[1] =
+                           AS99127_TEMP_ADD_FROM_REG(data->
+                                                     temp_add_hyst[nr]);
+                       results[2] =
+                           AS99127_TEMP_ADD_FROM_REG(data->temp_add[nr]);
+               } else {
+                       results[0] =
+                           TEMP_ADD_FROM_REG(data->temp_add_over[nr]);
+                       results[1] =
+                           TEMP_ADD_FROM_REG(data->temp_add_hyst[nr]);
+                       results[2] = TEMP_ADD_FROM_REG(data->temp_add[nr]);
+               }
+               *nrels_mag = 3;
+       } else if (operation == SENSORS_PROC_REAL_WRITE) {
+               if (*nrels_mag >= 1) {
+                       if (data->type == as99127f)
+                               data->temp_add_over[nr] =
+                                   AS99127_TEMP_ADD_TO_REG(results[0]);
+                       else
+                               data->temp_add_over[nr] =
+                                   TEMP_ADD_TO_REG(results[0]);
+                       w83781d_write_value(client,
+                                           nr ? W83781D_REG_TEMP3_OVER :
+                                           W83781D_REG_TEMP2_OVER,
+                                           data->temp_add_over[nr]);
+               }
+               if (*nrels_mag >= 2) {
+                       if (data->type == as99127f)
+                               data->temp_add_hyst[nr] =
+                                   AS99127_TEMP_ADD_TO_REG(results[1]);
+                       else
+                               data->temp_add_hyst[nr] =
+                                   TEMP_ADD_TO_REG(results[1]);
+                       w83781d_write_value(client,
+                                           nr ? W83781D_REG_TEMP3_HYST :
+                                           W83781D_REG_TEMP2_HYST,
+                                           data->temp_add_hyst[nr]);
+               }
+       }
+}
+
+
+static void w83781d_vid(struct i2c_client *client, int operation, int ctl_name,
+                int *nrels_mag, long *results)
+{
+       struct w83781d_data *data = client->data;
+       if (operation == SENSORS_PROC_REAL_INFO)
+               *nrels_mag = 3;
+       else if (operation == SENSORS_PROC_REAL_READ) {
+               w83781d_update_client(client);
+               results[0] = vid_from_reg(data->vid, data->vrm);
+               *nrels_mag = 1;
+       }
+}
+
+static void w83781d_vrm(struct i2c_client *client, int operation, int ctl_name,
+                int *nrels_mag, long *results)
+{
+       struct w83781d_data *data = client->data;
+       if (operation == SENSORS_PROC_REAL_INFO)
+               *nrels_mag = 1;
+       else if (operation == SENSORS_PROC_REAL_READ) {
+               results[0] = data->vrm;
+               *nrels_mag = 1;
+       } else if (operation == SENSORS_PROC_REAL_WRITE) {
+               if (*nrels_mag >= 1)
+                       data->vrm = results[0];
+       }
+}
+
+static void w83781d_alarms(struct i2c_client *client, int operation, int ctl_name,
+                   int *nrels_mag, long *results)
+{
+       struct w83781d_data *data = client->data;
+       if (operation == SENSORS_PROC_REAL_INFO)
+               *nrels_mag = 0;
+       else if (operation == SENSORS_PROC_REAL_READ) {
+               w83781d_update_client(client);
+               results[0] = ALARMS_FROM_REG(data->alarms);
+               *nrels_mag = 1;
+       }
+}
+
+static void w83781d_beep(struct i2c_client *client, int operation, int ctl_name,
+                 int *nrels_mag, long *results)
+{
+       struct w83781d_data *data = client->data;
+       int val;
+
+       if (operation == SENSORS_PROC_REAL_INFO)
+               *nrels_mag = 0;
+       else if (operation == SENSORS_PROC_REAL_READ) {
+               w83781d_update_client(client);
+               results[0] = BEEP_ENABLE_FROM_REG(data->beep_enable);
+               results[1] = BEEPS_FROM_REG(data->beeps);
+               *nrels_mag = 2;
+       } else if (operation == SENSORS_PROC_REAL_WRITE) {
+               if (*nrels_mag >= 2) {
+                       data->beeps = BEEPS_TO_REG(results[1]);
+                       w83781d_write_value(client, W83781D_REG_BEEP_INTS1,
+                                           data->beeps & 0xff);
+                       if ((data->type != w83781d) &&
+                           (data->type != as99127f)) {
+                               w83781d_write_value(client,
+                                                   W83781D_REG_BEEP_INTS3,
+                                                   ((data-> beeps) >> 16) &
+                                                     0xff);
+                       }
+                       val = (data->beeps >> 8) & 0x7f;
+               } else if (*nrels_mag >= 1)
+                       val =
+                           w83781d_read_value(client,
+                                              W83781D_REG_BEEP_INTS2) &
+                           0x7f;
+               if (*nrels_mag >= 1) {
+                       data->beep_enable = BEEP_ENABLE_TO_REG(results[0]);
+                       w83781d_write_value(client, W83781D_REG_BEEP_INTS2,
+                                           val | data->beep_enable << 7);
+               }
+       }
+}
+
+/* w83697hf only has two fans */
+static void w83781d_fan_div(struct i2c_client *client, int operation,
+                    int ctl_name, int *nrels_mag, long *results)
+{
+       struct w83781d_data *data = client->data;
+       int old, old2, old3 = 0;
+
+       if (operation == SENSORS_PROC_REAL_INFO)
+               *nrels_mag = 0;
+       else if (operation == SENSORS_PROC_REAL_READ) {
+               w83781d_update_client(client);
+               results[0] = DIV_FROM_REG(data->fan_div[0]);
+               results[1] = DIV_FROM_REG(data->fan_div[1]);
+               if (data->type == w83697hf) {
+                       *nrels_mag = 2;
+               } else {
+                       results[2] = DIV_FROM_REG(data->fan_div[2]);
+                       *nrels_mag = 3;
+               }
+       } else if (operation == SENSORS_PROC_REAL_WRITE) {
+               old = w83781d_read_value(client, W83781D_REG_VID_FANDIV);
+               /* w83781d and as99127f don't have extended divisor bits */
+               if ((data->type != w83781d) && data->type != as99127f) {
+                       old3 =
+                           w83781d_read_value(client, W83781D_REG_VBAT);
+               }
+               if (*nrels_mag >= 3 && data->type != w83697hf) {
+                       data->fan_div[2] =
+                           DIV_TO_REG(results[2], data->type);
+                       old2 = w83781d_read_value(client, W83781D_REG_PIN);
+                       old2 =
+                           (old2 & 0x3f) | ((data->fan_div[2] & 0x03) << 6);
+                       w83781d_write_value(client, W83781D_REG_PIN, old2);
+                       if ((data->type != w83781d) &&
+                           (data->type != as99127f)) {
+                               old3 =
+                                   (old3 & 0x7f) |
+                                   ((data->fan_div[2] & 0x04) << 5);
+                       }
+               }
+               if (*nrels_mag >= 2) {
+                       data->fan_div[1] =
+                           DIV_TO_REG(results[1], data->type);
+                       old =
+                           (old & 0x3f) | ((data->fan_div[1] & 0x03) << 6);
+                       if ((data->type != w83781d) &&
+                           (data->type != as99127f)) {
+                               old3 =
+                                   (old3 & 0xbf) |
+                                   ((data->fan_div[1] & 0x04) << 4);
+                       }
+               }
+               if (*nrels_mag >= 1) {
+                       data->fan_div[0] =
+                           DIV_TO_REG(results[0], data->type);
+                       old =
+                           (old & 0xcf) | ((data->fan_div[0] & 0x03) << 4);
+                       w83781d_write_value(client, W83781D_REG_VID_FANDIV,
+                                           old);
+                       if ((data->type != w83781d) &&
+                           (data->type != as99127f)) {
+                               old3 =
+                                   (old3 & 0xdf) |
+                                   ((data->fan_div[0] & 0x04) << 3);
+                               w83781d_write_value(client,
+                                                   W83781D_REG_VBAT,
+                                                   old3);
+                       }
+               }
+       }
+}
+
+static void w83781d_pwm(struct i2c_client *client, int operation, int ctl_name,
+                int *nrels_mag, long *results)
+{
+       struct w83781d_data *data = client->data;
+       int nr = 1 + ctl_name - W83781D_SYSCTL_PWM1;
+
+       if (operation == SENSORS_PROC_REAL_INFO)
+               *nrels_mag = 0;
+       else if (operation == SENSORS_PROC_REAL_READ) {
+               w83781d_update_client(client);
+               results[0] = PWM_FROM_REG(data->pwm[nr - 1]);
+               *nrels_mag = 1;
+       } else if (operation == SENSORS_PROC_REAL_WRITE) {
+               if (*nrels_mag >= 1) {
+                       data->pwm[nr - 1] = PWM_TO_REG(results[0]);
+                       w83781d_write_value(client, W83781D_REG_PWM(nr),
+                                           data->pwm[nr - 1]);
+               }
+       }
+}
+
+static void w83781d_sens(struct i2c_client *client, int operation, int ctl_name,
+                 int *nrels_mag, long *results)
+{
+       struct w83781d_data *data = client->data;
+       int nr = 1 + ctl_name - W83781D_SYSCTL_SENS1;
+       u8 tmp;
+
+       if (operation == SENSORS_PROC_REAL_INFO)
+               *nrels_mag = 0;
+       else if (operation == SENSORS_PROC_REAL_READ) {
+               results[0] = data->sens[nr - 1];
+               *nrels_mag = 1;
+       } else if (operation == SENSORS_PROC_REAL_WRITE) {
+               if (*nrels_mag >= 1) {
+                       switch (results[0]) {
+                       case 1: /* PII/Celeron diode */
+                               tmp = w83781d_read_value(client,
+                                                      W83781D_REG_SCFG1);
+                               w83781d_write_value(client,
+                                                   W83781D_REG_SCFG1,
+                                                   tmp | BIT_SCFG1[nr -
+                                                                   1]);
+                               tmp = w83781d_read_value(client,
+                                                      W83781D_REG_SCFG2);
+                               w83781d_write_value(client,
+                                                   W83781D_REG_SCFG2,
+                                                   tmp | BIT_SCFG2[nr -
+                                                                   1]);
+                               data->sens[nr - 1] = results[0];
+                               break;
+                       case 2: /* 3904 */
+                               tmp = w83781d_read_value(client,
+                                                      W83781D_REG_SCFG1);
+                               w83781d_write_value(client,
+                                                   W83781D_REG_SCFG1,
+                                                   tmp | BIT_SCFG1[nr -
+                                                                   1]);
+                               tmp = w83781d_read_value(client,
+                                                      W83781D_REG_SCFG2);
+                               w83781d_write_value(client,
+                                                   W83781D_REG_SCFG2,
+                                                   tmp & ~BIT_SCFG2[nr -
+                                                                    1]);
+                               data->sens[nr - 1] = results[0];
+                               break;
+                       case W83781D_DEFAULT_BETA:      /* thermistor */
+                               tmp = w83781d_read_value(client,
+                                                      W83781D_REG_SCFG1);
+                               w83781d_write_value(client,
+                                                   W83781D_REG_SCFG1,
+                                                   tmp & ~BIT_SCFG1[nr -
+                                                                    1]);
+                               data->sens[nr - 1] = results[0];
+                               break;
+                       default:
+                               printk
+                                   (KERN_ERR "w83781d.o: Invalid sensor type %ld; must be 1, 2, or %d\n",
+                                    results[0], W83781D_DEFAULT_BETA);
+                               break;
+                       }
+               }
+       }
+}
+
+#ifdef W83781D_RT
+static void w83781d_rt(struct i2c_client *client, int operation, int ctl_name,
+               int *nrels_mag, long *results)
+{
+       struct w83781d_data *data = client->data;
+       int nr = 1 + ctl_name - W83781D_SYSCTL_RT1;
+       int i;
+
+       if (operation == SENSORS_PROC_REAL_INFO)
+               *nrels_mag = 0;
+       else if (operation == SENSORS_PROC_REAL_READ) {
+               for (i = 0; i < 32; i++) {
+                       results[i] = data->rt[nr - 1][i];
+               }
+               *nrels_mag = 32;
+       } else if (operation == SENSORS_PROC_REAL_WRITE) {
+               if (*nrels_mag > 32)
+                       *nrels_mag = 32;
+               for (i = 0; i < *nrels_mag; i++) {
+                       /* fixme: no bounds checking 0-255 */
+                       data->rt[nr - 1][i] = results[i];
+                       w83781d_write_value(client, W83781D_REG_RT_IDX, i);
+                       w83781d_write_value(client, W83781D_REG_RT_VAL,
+                                           data->rt[nr - 1][i]);
+               }
+       }
+}
+#endif
+
+static int __init sensors_w83781d_init(void)
+{
+       return i2c_add_driver(&w83781d_driver);
+}
+
+static void __exit sensors_w83781d_exit(void)
+{
+       i2c_del_driver(&w83781d_driver);
+}
+
+MODULE_AUTHOR("Frodo Looijaard <frodol at dds.nl>, "
+             "Philip Edelbrock <phil at netroedge.com>, "
+             "and Mark Studebaker <mdsxyz123 at yahoo.com>");
+MODULE_DESCRIPTION("W83781D driver");
+MODULE_LICENSE("GPL");
+
+module_init(sensors_w83781d_init);
+module_exit(sensors_w83781d_exit);



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