Hi, the best documentation is probably the code and the datasheet.
The alarms are read like this (kernel/chips/w83781d.c):
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;
}
Here are some constants from the top of the file:
#define W83781D_REG_ALARM1 0x41
#define W83781D_REG_ALARM2 0x42
#define W83781D_REG_ALARM3 0x450 /* not on W83781D */
The datasheet should break out what the bits mean. From
kernel/include/sensors.h, we have them as meaning:
#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
To see an example of how these are applied, look at the function:
void print_w83781d(const sensors_chip_name *name)
in prog/sensors/chips.c
Phil
On Fri, Jun 28, 2002 at 04:20:40PM +0200, Nana Sadowsky wrote:
>
>
> Dear support,
>
> could you explain to (stupid) me what the number in
> /proc/sys/dev/sensors/alarms is about ?
>
> >From reading the w83782d datasheet, I suppose it's a bitmask representing
> the bits set in the 3 hardware status registers, but I couldn't find any
> proof of this assumption anywhere in the documentation.
> If so, in what order are they represented ?
>
> (Better still, where is this stuff documented ?)
> Thanks in advance for any hints.
>
> Best,
> Nana
>
> ==================================================================
>
> sadowsky at aei-potsdam.mpg.de (work) ++49 30 48496689 (home)
> nana.sadowsky at kiez.net (home) 0179 7840245 (mobile)
>
> ==================================================================
--
Philip Edelbrock -- IS Manager -- Edge Design, Corvallis, OR
phil at netroedge.com -- http://www.netroedge.com/~phil
PGP F16: 01 D2 FD 01 B5 46 F4 F0 3A 8B 9D 7E 14 7F FB 7A
