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| author | Andre Prendel <andre.prendel@gmx.de> | 2009-09-15 17:18:12 +0200 |
|---|---|---|
| committer | Jean Delvare <khali@linux-fr.org> | 2009-09-15 17:18:12 +0200 |
| commit | 1915fb70fa23230894cd35d98fcac5a168ec5c23 (patch) | |
| tree | 24bbad9393c4d58acab0de0b2f5e8e239aec58d9 /Documentation | |
| parent | 9410700b881f867a50dd8dc3204372fd9dccd8f8 (diff) | |
| download | linux-1915fb70fa23230894cd35d98fcac5a168ec5c23.tar.gz linux-1915fb70fa23230894cd35d98fcac5a168ec5c23.tar.bz2 linux-1915fb70fa23230894cd35d98fcac5a168ec5c23.zip | |
hwmon: (tmp421) Add documentation
Add documentation for the tmp421 driver.
Signed-off-by: Andre Prendel <andre.prendel@gmx.de>
Acked-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/hwmon/tmp421 | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/Documentation/hwmon/tmp421 b/Documentation/hwmon/tmp421 new file mode 100644 index 000000000000..0cf07f824741 --- /dev/null +++ b/Documentation/hwmon/tmp421 @@ -0,0 +1,36 @@ +Kernel driver tmp421 +==================== + +Supported chips: + * Texas Instruments TMP421 + Prefix: 'tmp421' + Addresses scanned: I2C 0x2a, 0x4c, 0x4d, 0x4e and 0x4f + Datasheet: http://focus.ti.com/docs/prod/folders/print/tmp421.html + * Texas Instruments TMP422 + Prefix: 'tmp422' + Addresses scanned: I2C 0x2a, 0x4c, 0x4d, 0x4e and 0x4f + Datasheet: http://focus.ti.com/docs/prod/folders/print/tmp421.html + * Texas Instruments TMP423 + Prefix: 'tmp423' + Addresses scanned: I2C 0x2a, 0x4c, 0x4d, 0x4e and 0x4f + Datasheet: http://focus.ti.com/docs/prod/folders/print/tmp421.html + +Authors: + Andre Prendel <andre.prendel@gmx.de> + +Description +----------- + +This driver implements support for Texas Instruments TMP421, TMP422 +and TMP423 temperature sensor chips. These chips implement one local +and up to one (TMP421), up to two (TMP422) or up to three (TMP423) +remote sensors. Temperature is measured in degrees Celsius. The chips +are wired over I2C/SMBus and specified over a temperature range of -40 +to +125 degrees Celsius. Resolution for both the local and remote +channels is 0.0625 degree C. + +The chips support only temperature measurement. The driver exports +the temperature values via the following sysfs files: + +temp[1-4]_input +temp[2-4]_fault |