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Commit d5622f5b authored by Clemens Ladisch's avatar Clemens Ladisch Committed by Guenter Roeck
Browse files

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: default avatarClemens Ladisch <clemens@ladisch.de>
Cc: stable@kernel.org
Signed-off-by: default avatarGuenter Roeck <guenter.roeck@ericsson.com>
parent e8667296

Documentation/hwmon/jc42

+7 −2
Original line number Diff line number Diff line
@@ -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.

drivers/hwmon/Kconfig

+6 −5
Original line number Diff line number Diff line
@@ -455,13 +455,14 @@ config SENSORS_JZ4740 
	  called jz4740-hwmon.



config SENSORS_JC42

	tristate "JEDEC JC42.4 compliant temperature sensors"

	tristate "JEDEC JC42.4 compliant memory module temperature sensors"

	depends on I2C

	help

	  If you say yes here you get support for Jedec JC42.4 compliant

	  temperature sensors. Support will include, but not be limited to,

	  ADT7408, CAT34TS02,, CAT6095, MAX6604, MCP9805, MCP98242, MCP98243,

	  MCP9843, SE97, SE98, STTS424, TSE2002B3, and TS3000B3.

	  If you say yes here, you get support for JEDEC JC42.4 compliant

	  temperature sensors, which are used on many DDR3 memory modules for

	  mobile devices and servers.  Support will include, but not be limited

	  to, ADT7408, CAT34TS02, CAT6095, MAX6604, MCP9805, MCP98242, MCP98243,

	  MCP9843, SE97, SE98, STTS424(E), TSE2002B3, and TS3000B3.



	  This driver can also be built as a module.  If so, the module

	  will be called jc42.