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diff --git a/Documentation/hwmon/jc42 b/Documentation/hwmon/jc42 deleted file mode 100644 index b4b671f22453..000000000000 --- a/Documentation/hwmon/jc42 +++ /dev/null @@ -1,103 +0,0 @@ -Kernel driver jc42 -================== - -Supported chips: - * Analog Devices ADT7408 - Datasheets: - http://www.analog.com/static/imported-files/data_sheets/ADT7408.pdf - * Atmel AT30TS00, AT30TS002A/B, AT30TSE004A - Datasheets: - http://www.atmel.com/Images/doc8585.pdf - http://www.atmel.com/Images/doc8711.pdf - http://www.atmel.com/Images/Atmel-8852-SEEPROM-AT30TSE002A-Datasheet.pdf - http://www.atmel.com/Images/Atmel-8868-DTS-AT30TSE004A-Datasheet.pdf - * IDT TSE2002B3, TSE2002GB2, TSE2004GB2, TS3000B3, TS3000GB0, TS3000GB2, - TS3001GB2 - Datasheets: - Available from IDT web site - * Maxim MAX6604 - Datasheets: - http://datasheets.maxim-ic.com/en/ds/MAX6604.pdf - * Microchip MCP9804, MCP9805, MCP9808, MCP98242, MCP98243, MCP98244, MCP9843 - Datasheets: - http://ww1.microchip.com/downloads/en/DeviceDoc/22203C.pdf - http://ww1.microchip.com/downloads/en/DeviceDoc/21977b.pdf - http://ww1.microchip.com/downloads/en/DeviceDoc/25095A.pdf - http://ww1.microchip.com/downloads/en/DeviceDoc/21996a.pdf - http://ww1.microchip.com/downloads/en/DeviceDoc/22153c.pdf - http://ww1.microchip.com/downloads/en/DeviceDoc/22327A.pdf - * NXP Semiconductors SE97, SE97B, SE98, SE98A - Datasheets: - http://www.nxp.com/documents/data_sheet/SE97.pdf - http://www.nxp.com/documents/data_sheet/SE97B.pdf - http://www.nxp.com/documents/data_sheet/SE98.pdf - http://www.nxp.com/documents/data_sheet/SE98A.pdf - * ON Semiconductor CAT34TS02, CAT6095 - Datasheet: - http://www.onsemi.com/pub_link/Collateral/CAT34TS02-D.PDF - http://www.onsemi.com/pub/Collateral/CAT6095-D.PDF - * ST Microelectronics STTS424, STTS424E02, STTS2002, STTS2004, STTS3000 - Datasheets: - http://www.st.com/web/en/resource/technical/document/datasheet/CD00157556.pdf - http://www.st.com/web/en/resource/technical/document/datasheet/CD00157558.pdf - http://www.st.com/web/en/resource/technical/document/datasheet/CD00266638.pdf - http://www.st.com/web/en/resource/technical/document/datasheet/CD00225278.pdf - http://www.st.com/web/en/resource/technical/document/datasheet/DM00076709.pdf - * JEDEC JC 42.4 compliant temperature sensor chips - Datasheet: - http://www.jedec.org/sites/default/files/docs/4_01_04R19.pdf - - Common for all chips: - Prefix: 'jc42' - Addresses scanned: I2C 0x18 - 0x1f - -Author: - Guenter Roeck <linux@roeck-us.net> - - -Description ------------ - -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. - -Example: the following will load the driver for a generic JC 42.4 compliant -temperature sensor at address 0x18 on I2C bus #1: - -# modprobe jc42 -# echo jc42 0x18 > /sys/bus/i2c/devices/i2c-1/new_device - -A JC 42.4 compliant chip supports a single temperature sensor. Minimum, maximum, -and critical temperature can be configured. There are alarms for high, low, -and critical thresholds. - -There is also an hysteresis to control the thresholds for resetting alarms. -Per JC 42.4 specification, the hysteresis threshold can be configured to 0, 1.5, -3.0, and 6.0 degrees C. Configured hysteresis values will be rounded to those -limits. The chip supports only a single register to configure the hysteresis, -which applies to all limits. This register can be written by writing into -temp1_crit_hyst. Other hysteresis attributes are read-only. - -If the BIOS has configured the sensor for automatic temperature management, it -is likely that it has locked the registers, i.e., that the temperature limits -cannot be changed. - -Sysfs entries -------------- - -temp1_input Temperature (RO) -temp1_min Minimum temperature (RO or RW) -temp1_max Maximum temperature (RO or RW) -temp1_crit Critical high temperature (RO or RW) - -temp1_crit_hyst Critical hysteresis temperature (RO or RW) -temp1_max_hyst Maximum hysteresis temperature (RO) - -temp1_min_alarm Temperature low alarm -temp1_max_alarm Temperature high alarm -temp1_crit_alarm Temperature critical alarm |