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| author | Guenter Roeck <linux@roeck-us.net> | 2019-11-23 22:11:26 +0300 |
|---|---|---|
| committer | Guenter Roeck <linux@roeck-us.net> | 2020-01-24 00:15:09 +0300 |
| commit | d21ed22ba7b110746315dff56f62d76352ac5437 (patch) | |
| tree | 852ae52c799dc27539db6895a804cccab716dc95 /Documentation | |
| parent | 002c6b545b85676539add33add8aa7f1f49cbfff (diff) | |
| download | linux-d21ed22ba7b110746315dff56f62d76352ac5437.tar.xz | |
hwmon: Driver for MAX31730
MAX31730 is a 3-Channel Remote Temperature Sensor.
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/hwmon/index.rst | 1 | ||||
| -rw-r--r-- | Documentation/hwmon/max31730.rst | 44 |
2 files changed, 45 insertions, 0 deletions
diff --git a/Documentation/hwmon/index.rst b/Documentation/hwmon/index.rst index 43cc605741ea..b91da3acccb9 100644 --- a/Documentation/hwmon/index.rst +++ b/Documentation/hwmon/index.rst @@ -108,6 +108,7 @@ Hardware Monitoring Kernel Drivers max197 max20751 max31722 + max31730 max31785 max31790 max34440 diff --git a/Documentation/hwmon/max31730.rst b/Documentation/hwmon/max31730.rst new file mode 100644 index 000000000000..def0de19dbd2 --- /dev/null +++ b/Documentation/hwmon/max31730.rst @@ -0,0 +1,44 @@ +Kernel driver max31790 +====================== + +Supported chips: + + * Maxim MAX31730 + + Prefix: 'max31730' + + Addresses scanned: 0x1c, 0x1d, 0x1e, 0x1f, 0x4c, 0x4d, 0x4e, 0x4f + + Datasheet: https://datasheets.maximintegrated.com/en/ds/MAX31730.pdf + +Author: Guenter Roeck <linux@roeck-us.net> + + +Description +----------- + +This driver implements support for Maxim MAX31730. + +The MAX31730 temperature sensor monitors its own temperature and the +temperatures of three external diode-connected transistors. The operating +supply voltage is from 3.0V to 3.6V. Resistance cancellation compensates +for high series resistance in circuit-board traces and the external thermal +diode, while beta compensation corrects for temperature-measurement +errors due to low-beta sensing transistors. + + +Sysfs entries +------------- + +=================== == ======================================================= +temp[1-4]_enable RW Temperature enable/disable + Set to 0 to enable channel, 0 to disable +temp[1-4]_input RO Temperature input +temp[2-4]_fault RO Fault indicator for remote channels +temp[1-4]_max RW Maximum temperature +temp[1-4]_max_alarm RW Maximum temperature alarm +temp[1-4]_min RW Minimum temperature. Common for all channels. + Only temp1_min is writeable. +temp[1-4]_min_alarm RO Minimum temperature alarm +temp[2-4]_offset RW Temperature offset for remote channels +=================== == ======================================================= |