diff options
author | Mauro Carvalho Chehab <mchehab+samsung@kernel.org> | 2019-04-17 06:46:29 -0300 |
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committer | Guenter Roeck <linux@roeck-us.net> | 2019-04-17 10:37:23 -0700 |
commit | 7ebd8b66dd9e5a0b65e5ee5e2b8e7ca382ec97b7 (patch) | |
tree | 9db30159bd32bec125c7d49e80a79bb7c4da0c8e /Documentation/hwmon/smsc47m192 | |
parent | b04f2f7d387b3160883c2a1f5e2285483a791e82 (diff) |
docs: hwmon: Add an index file and rename docs to *.rst
Now that all files were converted to ReST format, rename them
and add an index.
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Diffstat (limited to 'Documentation/hwmon/smsc47m192')
-rw-r--r-- | Documentation/hwmon/smsc47m192 | 116 |
1 files changed, 0 insertions, 116 deletions
diff --git a/Documentation/hwmon/smsc47m192 b/Documentation/hwmon/smsc47m192 deleted file mode 100644 index a2e86ab67918..000000000000 --- a/Documentation/hwmon/smsc47m192 +++ /dev/null @@ -1,116 +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. |