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authorManuel Lauss <mano@roarinelk.homelinux.net>2009-01-07 10:37:34 -0500
committerJean Delvare <khali@linux-fr.org>2009-01-07 10:37:34 -0500
commitc8ac32e4711639c81e5f4d4cd78c8f21675a2bae (patch)
tree3ec6572d74cf2fc824a8176aa5f3adeac04002ed /Documentation/hwmon/lm70
parent2b7300513b98e05058a803de3beb8a1c0a0c61d9 (diff)
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 <mano@roarinelk.homelinux.net> Signed-off-by: Jean Delvare <khali@linux-fr.org>
Diffstat (limited to 'Documentation/hwmon/lm70')
-rw-r--r--Documentation/hwmon/lm708
1 files changed, 7 insertions, 1 deletions
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 @@
1Kernel driver lm70 1Kernel driver lm70
2================== 2==================
3 3
4Supported chip: 4Supported chips:
5 * National Semiconductor LM70 5 * National Semiconductor LM70
6 Datasheet: http://www.national.com/pf/LM/LM70.html 6 Datasheet: http://www.national.com/pf/LM/LM70.html
7 * Texas Instruments TMP121/TMP123
8 Information: http://focus.ti.com/docs/prod/folders/print/tmp121.html
7 9
8Author: 10Author:
9 Kaiwan N Billimoria <kaiwan@designergraphix.com> 11 Kaiwan N Billimoria <kaiwan@designergraphix.com>
@@ -29,6 +31,10 @@ As a real (in-tree) example of this "SPI protocol driver" interfacing
29with a "SPI master controller driver", see drivers/spi/spi_lm70llp.c 31with a "SPI master controller driver", see drivers/spi/spi_lm70llp.c
30and its associated documentation. 32and its associated documentation.
31 33
34The TMP121/TMP123 are very similar; main differences are 4 wire SPI inter-
35face (read only) and 13-bit temperature data (0.0625 degrees celsius reso-
36lution).
37
32Thanks to 38Thanks to
33--------- 39---------
34Jean Delvare <khali@linux-fr.org> for mentoring the hwmon-side driver 40Jean Delvare <khali@linux-fr.org> for mentoring the hwmon-side driver