On Thu, 1 Mar 2012 11:35:29 +0000 (UTC), Pierantonio Tabaro wrote: > Hi, > i have a arm mx28 board with a couple of ads1015, > i have ported the driver from: > "[PATCH v4] hwmon: Add support for Texas Instruments ADS1015" > to my kernel 2.6.35.3 > > when i boot the board and probe the two modules hwmon.ko and ads1015.ko nothing > happens. > > with i2cdump i see the chips,i am sure of this because the default values for > some registers are 0x8583, 0x8000 and 0x7fff. > > sample output for one chip: > > root@picomaster ~$ i2cdump 0 0x48 w > WARNING! This program can confuse your I2C bus, cause data loss and worse! > I will probe file /dev/i2c-0, address 0x48, mode word > Continue? [Y/n] > 0,8 1,9 2,a 3,b 4,c 5,d 6,e 7,f > 00: 0000 8385 0080 ff7f 0000 8385 0080 XXXX > 08: 0000 8385 0080 ff7f 0000 8385 0080 XXXX > > On sysfs i see this: > > root@picomaster ~$ find /sys/ | grep ads1015 > /sys/bus/i2c/drivers/ads1015 > /sys/bus/i2c/drivers/ads1015/module > /sys/bus/i2c/drivers/ads1015/uevent > /sys/bus/i2c/drivers/ads1015/unbind > /sys/bus/i2c/drivers/ads1015/bind > /sys/module/hwmon/holders/ads1015 > /sys/module/ads1015 > /sys/module/ads1015/holders > /sys/module/ads1015/initstate > /sys/module/ads1015/refcnt > /sys/module/ads1015/sections > /sys/module/ads1015/sections/.text > /sys/module/ads1015/sections/.exit.text > /sys/module/ads1015/sections/.init.text > /sys/module/ads1015/sections/.rodata > /sys/module/ads1015/sections/.rodata.str1.1 > /sys/module/ads1015/sections/.data > /sys/module/ads1015/sections/.gnu.linkonce.this_module > /sys/module/ads1015/sections/.note.gnu.build-id > /sys/module/ads1015/sections/.symtab > /sys/module/ads1015/sections/.strtab > /sys/module/ads1015/notes > /sys/module/ads1015/notes/.note.gnu.build-id > /sys/module/ads1015/drivers > /sys/module/ads1015/drivers/i2c:ads1015 > > root@picomaster ~$ find /sys/module/hwmon/ > /sys/module/hwmon/ > /sys/module/hwmon/holders > /sys/module/hwmon/holders/ads1015 > /sys/module/hwmon/initstate > /sys/module/hwmon/refcnt > /sys/module/hwmon/sections > /sys/module/hwmon/sections/.text > /sys/module/hwmon/sections/.exit.text > /sys/module/hwmon/sections/.init.text > /sys/module/hwmon/sections/__ksymtab_strings > /sys/module/hwmon/sections/__kcrctab_gpl > /sys/module/hwmon/sections/.rodata.str1.1 > /sys/module/hwmon/sections/__ksymtab_gpl > /sys/module/hwmon/sections/.gnu.linkonce.this_module > /sys/module/hwmon/sections/.note.gnu.build-id > /sys/module/hwmon/sections/.bss > /sys/module/hwmon/sections/.symtab > /sys/module/hwmon/sections/.strtab > /sys/module/hwmon/notes > /sys/module/hwmon/notes/.note.gnu.build-id > > I expect to have the inputs value to sysfs, according to source something like > that: /sys/.../ads1015/in_0_input Yes, you are missing something. Please read: Documentation/i2c/instantiating-devices Method 3 is not implemented by the ads1015 driver because the devices it supports have no identification registers, so you'll have to use one of the three other methods. -- Jean Delvare _______________________________________________ lm-sensors mailing list lm-sensors@xxxxxxxxxxxxxx http://lists.lm-sensors.org/mailman/listinfo/lm-sensors
