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Diffstat (limited to 'Documentation/hwmon/thmc50')
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diff --git a/Documentation/hwmon/thmc50 b/Documentation/hwmon/thmc50 deleted file mode 100644 index 6dba1b59b20c..000000000000 --- a/Documentation/hwmon/thmc50 +++ /dev/null @@ -1,90 +0,0 @@ -Kernel driver thmc50 -===================== - -Supported chips: - - * Analog Devices ADM1022 - - Prefix: 'adm1022' - - Addresses scanned: I2C 0x2c - 0x2e - - Datasheet: http://www.analog.com/en/prod/0,2877,ADM1022,00.html - - * Texas Instruments THMC50 - - Prefix: 'thmc50' - - Addresses scanned: I2C 0x2c - 0x2e - - Datasheet: http://www.ti.com/ - - -Author: Krzysztof Helt <krzysztof.h1@wp.pl> - -This driver was derived from the 2.4 kernel thmc50.c source file. - -Credits: - - thmc50.c (2.4 kernel): - - - Frodo Looijaard <frodol@dds.nl> - - Philip Edelbrock <phil@netroedge.com> - -Module Parameters ------------------ - -* adm1022_temp3: short array - List of adapter,address pairs to force chips into ADM1022 mode with - second remote temperature. This does not work for original THMC50 chips. - -Description ------------ - -The THMC50 implements: an internal temperature sensor, support for an -external diode-type temperature sensor (compatible w/ the diode sensor inside -many processors), and a controllable fan/analog_out DAC. For the temperature -sensors, limits can be set through the appropriate Overtemperature Shutdown -register and Hysteresis register. Each value can be set and read to half-degree -accuracy. An alarm is issued (usually to a connected LM78) when the -temperature gets higher then the Overtemperature Shutdown value; it stays on -until the temperature falls below the Hysteresis value. All temperatures are in -degrees Celsius, and are guaranteed within a range of -55 to +125 degrees. - -The THMC50 only updates its values each 1.5 seconds; reading it more often -will do no harm, but will return 'old' values. - -The THMC50 is usually used in combination with LM78-like chips, to measure -the temperature of the processor(s). - -The ADM1022 works the same as THMC50 but it is faster (5 Hz instead of -1 Hz for THMC50). It can be also put in a new mode to handle additional -remote temperature sensor. The driver use the mode set by BIOS by default. - -In case the BIOS is broken and the mode is set incorrectly, you can force -the mode with additional remote temperature with adm1022_temp3 parameter. -A typical symptom of wrong setting is a fan forced to full speed. - -Driver Features ---------------- - -The driver provides up to three temperatures: - -temp1 - - internal -temp2 - - remote -temp3 - - 2nd remote only for ADM1022 - -pwm1 - - fan speed (0 = stop, 255 = full) -pwm1_mode - - always 0 (DC mode) - -The value of 0 for pwm1 also forces FAN_OFF signal from the chip, -so it stops fans even if the value 0 into the ANALOG_OUT register does not. - -The driver was tested on Compaq AP550 with two ADM1022 chips (one works -in the temp3 mode), five temperature readings and two fans. - |