From c8ac32e4711639c81e5f4d4cd78c8f21675a2bae Mon Sep 17 00:00:00 2001 From: Manuel Lauss Date: Wed, 7 Jan 2009 16:37:34 +0100 Subject: hwmon: (lm70) Add TI TMP121 support The Texas Instruments TMP121 is a SPI temperature sensor very similar to the LM70, with slightly higher resolution. This patch extends the LM70 driver to support the TMP121. The TMP123 differs in pin assign- ment. Signed-off-by: Manuel Lauss Signed-off-by: Jean Delvare --- Documentation/hwmon/lm70 | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) (limited to 'Documentation/hwmon') diff --git a/Documentation/hwmon/lm70 b/Documentation/hwmon/lm70 index b8d1a521e689..0d240291e3cc 100644 --- a/Documentation/hwmon/lm70 +++ b/Documentation/hwmon/lm70 @@ -1,9 +1,11 @@ Kernel driver lm70 ================== -Supported chip: +Supported chips: * National Semiconductor LM70 Datasheet: http://www.national.com/pf/LM/LM70.html + * Texas Instruments TMP121/TMP123 + Information: http://focus.ti.com/docs/prod/folders/print/tmp121.html Author: Kaiwan N Billimoria @@ -29,6 +31,10 @@ As a real (in-tree) example of this "SPI protocol driver" interfacing with a "SPI master controller driver", see drivers/spi/spi_lm70llp.c and its associated documentation. +The TMP121/TMP123 are very similar; main differences are 4 wire SPI inter- +face (read only) and 13-bit temperature data (0.0625 degrees celsius reso- +lution). + Thanks to --------- Jean Delvare for mentoring the hwmon-side driver -- cgit v1.2.1