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Diffstat (limited to 'Documentation/hwmon/smsc47m192')
| -rw-r--r-- | Documentation/hwmon/smsc47m192 | 103 |
1 files changed, 0 insertions, 103 deletions
diff --git a/Documentation/hwmon/smsc47m192 b/Documentation/hwmon/smsc47m192 deleted file mode 100644 index 6d54ecb7b3f8..000000000000 --- a/Documentation/hwmon/smsc47m192 +++ /dev/null @@ -1,103 +0,0 @@ -Kernel driver smsc47m192 -======================== - -Supported chips: - * SMSC LPC47M192, LPC47M15x, LPC47M292 and LPC47M997 - Prefix: 'smsc47m192' - Addresses scanned: I2C 0x2c - 0x2d - Datasheet: The datasheet for LPC47M192 is publicly available from - http://www.smsc.com/ - The LPC47M15x, LPC47M292 and LPC47M997 are compatible for - hardware monitoring. - -Author: Hartmut Rick <linux@rick.claranet.de> - Special thanks to Jean Delvare for careful checking - of the code and many helpful comments and suggestions. - - -Description ------------ - -This driver implements support for the hardware sensor capabilities -of the SMSC LPC47M192 and compatible Super-I/O chips. - -These chips support 3 temperature channels and 8 voltage inputs -as well as CPU voltage VID input. - -They do also have fan monitoring and control capabilities, but the -these features are accessed via ISA bus and are not supported by this -driver. Use the 'smsc47m1' driver for fan monitoring and control. - -Voltages and temperatures are measured by an 8-bit ADC, the resolution -of the temperatures is 1 bit per degree C. -Voltages are scaled such that the nominal voltage corresponds to -192 counts, i.e. 3/4 of the full range. Thus the available range for -each voltage channel is 0V ... 255/192*(nominal voltage), the resolution -is 1 bit per (nominal voltage)/192. -Both voltage and temperature values are scaled by 1000, the sys files -show voltages in mV and temperatures in units of 0.001 degC. - -The +12V analog voltage input channel (in4_input) is multiplexed with -bit 4 of the encoded CPU voltage. This means that you either get -a +12V voltage measurement or a 5 bit CPU VID, but not both. -The default setting is to use the pin as 12V input, and use only 4 bit VID. -This driver assumes that the information in the configuration register -is correct, i.e. that the BIOS has updated the configuration if -the motherboard has this input wired to VID4. - -The temperature and voltage readings are updated once every 1.5 seconds. -Reading them more often repeats the same values. - - -sysfs interface ---------------- - -in0_input - +2.5V voltage input -in1_input - CPU voltage input (nominal 2.25V) -in2_input - +3.3V voltage input -in3_input - +5V voltage input -in4_input - +12V voltage input (may be missing if used as VID4) -in5_input - Vcc voltage input (nominal 3.3V) - This is the supply voltage of the sensor chip itself. -in6_input - +1.5V voltage input -in7_input - +1.8V voltage input - -in[0-7]_min, -in[0-7]_max - lower and upper alarm thresholds for in[0-7]_input reading - - All voltages are read and written in mV. - -in[0-7]_alarm - alarm flags for voltage inputs - These files read '1' in case of alarm, '0' otherwise. - -temp1_input - chip temperature measured by on-chip diode -temp[2-3]_input - temperature measured by external diodes (one of these would - typically be wired to the diode inside the CPU) - -temp[1-3]_min, -temp[1-3]_max - lower and upper alarm thresholds for temperatures - -temp[1-3]_offset - temperature offset registers - The chip adds the offsets stored in these registers to - the corresponding temperature readings. - Note that temp1 and temp2 offsets share the same register, - they cannot both be different from zero at the same time. - Writing a non-zero number to one of them will reset the other - offset to zero. - - All temperatures and offsets are read and written in - units of 0.001 degC. - -temp[1-3]_alarm - alarm flags for temperature inputs, '1' in case of alarm, - '0' otherwise. -temp[2-3]_input_fault - diode fault flags for temperature inputs 2 and 3. - A fault is detected if the two pins for the corresponding - sensor are open or shorted, or any of the two is shorted - to ground or Vcc. '1' indicates a diode fault. - -cpu0_vid - CPU voltage as received from the CPU - -vrm - CPU VID standard used for decoding CPU voltage - - The *_min, *_max, *_offset and vrm files can be read and - written, all others are read-only. |