This patch adds documentation for driver tmp421. Signed-off-by: Andre Prendel <andre.prendel at gmx.de> --- tmp421 | 36 ++++++++++++++++++++++++++++++++++++ 1 file changed, 36 insertions(+) Index: linux-2.6/Documentation/hwmon/tmp421 =================================================================== --- /dev/null 1970-01-01 00:00:00.000000000 +0000 +++ linux-2.6/Documentation/hwmon/tmp421 2009-06-11 21:50:46.000000000 +0200 @@ -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 at gmx.de> + +Description +----------- + +This driver implements support for Texas Instruments TMP421, TMP422 +and TMP423 temperature sensor chips. These chips implements 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?C to +125?C. Resolution for both the local and remote channels is +0.0625?C. + +The chips supports only temperature measurement and exports these +values via following sysfs-interface: + +temp[1-4]_input +temp[2-4]_fault
