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| author | Manuel Lauss <mano@roarinelk.homelinux.net> | 2009-01-07 16:37:34 +0100 |
|---|---|---|
| committer | Jean Delvare <khali@linux-fr.org> | 2009-01-07 16:37:34 +0100 |
| commit | c8ac32e4711639c81e5f4d4cd78c8f21675a2bae (patch) | |
| tree | 3ec6572d74cf2fc824a8176aa5f3adeac04002ed /Documentation/hwmon | |
| parent | 2b7300513b98e05058a803de3beb8a1c0a0c61d9 (diff) | |
| download | op-kernel-dev-c8ac32e4711639c81e5f4d4cd78c8f21675a2bae.zip op-kernel-dev-c8ac32e4711639c81e5f4d4cd78c8f21675a2bae.tar.gz | |
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')
| -rw-r--r-- | Documentation/hwmon/lm70 | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/Documentation/hwmon/lm70 b/Documentation/hwmon/lm70 index b8d1a52..0d24029 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 <kaiwan@designergraphix.com> @@ -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 <khali@linux-fr.org> for mentoring the hwmon-side driver |
