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| author | Clemens Ladisch <clemens@ladisch.de> | 2011-02-16 08:02:08 -0500 |
|---|---|---|
| committer | Guenter Roeck <guenter.roeck@ericsson.com> | 2011-02-16 08:18:32 -0800 |
| commit | d5622f5b6c4671d1588ccc9056705366d4eb312a (patch) | |
| tree | a1cf8a6ad056f4e13be6185399c1b732984e364c /Documentation | |
| parent | e866729605a43a739fc56023a8530b07a93d3458 (diff) | |
| download | linux-d5622f5b6c4671d1588ccc9056705366d4eb312a.tar.bz2 | |
hwmon: (jc42) more helpful documentation
The documentation lists standard numbers and chip names in excruciating
detail, but that's all it does. To help mere mortals in deciding
whether to enable this driver, mention what this sensor is for and in
which systems it might be found.
Also add a link to the actual JC 42.4 specification.
Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Cc: stable@kernel.org
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/hwmon/jc42 | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/Documentation/hwmon/jc42 b/Documentation/hwmon/jc42 index 0e76ef12e4c6..2a0924003f92 100644 --- a/Documentation/hwmon/jc42 +++ b/Documentation/hwmon/jc42 @@ -51,7 +51,8 @@ Supported chips: * JEDEC JC 42.4 compliant temperature sensor chips Prefix: 'jc42' Addresses scanned: I2C 0x18 - 0x1f - Datasheet: - + Datasheet: + http://www.jedec.org/sites/default/files/docs/4_01_04R19.pdf Author: Guenter Roeck <guenter.roeck@ericsson.com> @@ -60,7 +61,11 @@ Author: Description ----------- -This driver implements support for JEDEC JC 42.4 compliant temperature sensors. +This driver implements support for JEDEC JC 42.4 compliant temperature sensors, +which are used on many DDR3 memory modules for mobile devices and servers. Some +systems use the sensor to prevent memory overheating by automatically throttling +the memory controller. + The driver auto-detects the chips listed above, but can be manually instantiated to support other JC 42.4 compliant chips. |