From d5622f5b6c4671d1588ccc9056705366d4eb312a Mon Sep 17 00:00:00 2001 From: Clemens Ladisch Date: Wed, 16 Feb 2011 08:02:08 -0500 Subject: 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 Cc: stable@kernel.org Signed-off-by: Guenter Roeck --- Documentation/hwmon/jc42 | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) (limited to 'Documentation/hwmon') diff --git a/Documentation/hwmon/jc42 b/Documentation/hwmon/jc42 index 0e76ef1..2a09240 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 @@ -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. -- cgit v1.1