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| author | Tao Ren <rentao.bupt@gmail.com> | 2020-11-23 21:56:58 +0300 |
|---|---|---|
| committer | Guenter Roeck <linux@roeck-us.net> | 2020-12-03 04:42:24 +0300 |
| commit | 12d36c8362d090ce108ce4283f9e655373e2b472 (patch) | |
| tree | 6197aad7d0295dfb13bf402a680563f5d7a8ac7b /Documentation/hwmon | |
| parent | 8efd10147cd282c99fa5109b5497017a503ecbcd (diff) | |
| download | linux-12d36c8362d090ce108ce4283f9e655373e2b472.tar.xz | |
docs: hwmon: Document max127 driver
Add documentation for the max127 hardware monitoring driver.
Signed-off-by: Tao Ren <rentao.bupt@gmail.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20201123185658.7632-3-rentao.bupt@gmail.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Diffstat (limited to 'Documentation/hwmon')
| -rw-r--r-- | Documentation/hwmon/index.rst | 1 | ||||
| -rw-r--r-- | Documentation/hwmon/max127.rst | 45 |
2 files changed, 46 insertions, 0 deletions
diff --git a/Documentation/hwmon/index.rst b/Documentation/hwmon/index.rst index 00844f0a8c55..fd6fae46b99c 100644 --- a/Documentation/hwmon/index.rst +++ b/Documentation/hwmon/index.rst @@ -111,6 +111,7 @@ Hardware Monitoring Kernel Drivers ltc4245 ltc4260 ltc4261 + max127 max16064 max16065 max1619 diff --git a/Documentation/hwmon/max127.rst b/Documentation/hwmon/max127.rst new file mode 100644 index 000000000000..dc192dd9c37c --- /dev/null +++ b/Documentation/hwmon/max127.rst @@ -0,0 +1,45 @@ +.. SPDX-License-Identifier: GPL-2.0-or-later + +Kernel driver max127 +==================== + +Author: + + * Tao Ren <rentao.bupt@gmail.com> + +Supported chips: + + * Maxim MAX127 + + Prefix: 'max127' + + Datasheet: https://datasheets.maximintegrated.com/en/ds/MAX127-MAX128.pdf + +Description +----------- + +The MAX127 is a multirange, 12-bit data acquisition system (DAS) providing +8 analog input channels that are independently software programmable for +a variety of ranges. The available ranges are {0,5V}, {0,10V}, {-5,5V} +and {-10,10V}. + +The MAX127 features a 2-wire, I2C-compatible serial interface that allows +communication among multiple devices using SDA and SCL lines. + +Sysfs interface +--------------- + + ============== ============================================================== + in[0-7]_input The input voltage (in mV) of the corresponding channel. + RO + + in[0-7]_min The lower input limit (in mV) for the corresponding channel. + ADC range and LSB will be updated when the limit is changed. + For the MAX127, it will be adjusted to -10000, -5000, or 0. + RW + + in[0-7]_max The higher input limit (in mV) for the corresponding channel. + ADC range and LSB will be updated when the limit is changed. + For the MAX127, it will be adjusted to 0, 5000, or 10000. + RW + ============== ============================================================== |