On Mon, Nov 16, 2020 at 05:09:44PM -0800, rentao.bupt@xxxxxxxxx wrote: > From: Tao Ren <rentao.bupt@xxxxxxxxx> > > Add documentation for max127 hardware monitoring driver. > > Signed-off-by: Tao Ren <rentao.bupt@xxxxxxxxx> > --- > Documentation/hwmon/index.rst | 1 + > Documentation/hwmon/max127.rst | 43 ++++++++++++++++++++++++++++++++++ > 2 files changed, 44 insertions(+) > create mode 100644 Documentation/hwmon/max127.rst > > diff --git a/Documentation/hwmon/index.rst b/Documentation/hwmon/index.rst > index 408760d13813..0a07b6000c20 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..e50225a61c1a > --- /dev/null > +++ b/Documentation/hwmon/max127.rst > @@ -0,0 +1,43 @@ > +.. SPDX-License-Identifier: GPL-2.0-or-later > + > +Kernel driver max127 > +==================== > + > +Author: > + > + * Tao Ren <rentao.bupt@xxxxxxxxx> > + > +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 conversion value for the corresponding channel. > + RO > + > + in[0-7]_min The lower limit (in Volt) for the corresponding channel. > + For the MAX127, it will be adjusted to -10, -5, or 0. > + RW > + > + in[0-7]_max The higher limit (in Volt) for the corresponding channel. > + For the MAX127, it will be adjusted to 0, 5, or 10. > + RW This should explain that the limits set the ADC range. > + ============== ============================================================== > -- > 2.17.1 >
