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authorIngo Molnar <mingo@elte.hu>2009-01-11 15:34:05 +0100
committerIngo Molnar <mingo@elte.hu>2009-01-11 15:34:05 +0100
commitd19b85db9d5c44a4c21dcb10d6fbadaa4425ab2a (patch)
tree250be7a5a29069f7d1f4524fa45ab0e988833025 /Documentation/hwmon/lm70
parent490dea45d00f01847ebebd007685d564aaf2cd98 (diff)
parentc59765042f53a79a7a65585042ff463b69cb248c (diff)
Merge commit 'v2.6.29-rc1' into timers/urgent
Diffstat (limited to 'Documentation/hwmon/lm70')
-rw-r--r--Documentation/hwmon/lm7012
1 files changed, 11 insertions, 1 deletions
diff --git a/Documentation/hwmon/lm70 b/Documentation/hwmon/lm70
index 2bdd3feebf5..0d240291e3c 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>
@@ -25,6 +27,14 @@ complement digital temperature (sent via the SIO line), is available in the
driver for interpretation. This driver makes use of the kernel's in-core
SPI support.
+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