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lf-6.6.y
linux-imx/Documentation/ABI/testing/sysfs-bus-iio-dac-dpot-dac
Peter Rosin 7fde1484af iio: dpot-dac: DAC driver based on a digital potentiometer 
It is assumed that the dpot is used as a voltage divider between the
current dpot wiper setting and the maximum resistance of the dpot. The
divided voltage is provided by a vref regulator.

                  .------.
   .-----------.  |      |
   | vref      |--'    .---.
   | regulator |--.    |   |
   '-----------'  |    | d |
                  |    | p |
                  |    | o |  wiper
                  |    | t |<---------+
                  |    |   |
                  |    '---'       dac output voltage
                  |      |
                  '------+------------+

Signed-off-by: Peter Rosin <peda@axentia.se>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2016-11-13 13:07:15 +00:00

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What: /sys/bus/iio/devices/iio:deviceX/out_voltageY_raw_available Date: October 2016 KernelVersion: 4.9 Contact: Peter Rosin peda@axentia.se Description: The range of available values represented as the minimum value, the step and the maximum value, all enclosed in square brackets. Example: [0 1 256]