diff options
| author | Peter Rosin <peda@axentia.se> | 2016-11-08 12:58:56 +0100 |
|---|---|---|
| committer | Jonathan Cameron <jic23@kernel.org> | 2016-11-13 14:07:15 +0100 |
| commit | 7fde1484af21f9668e9575bd8a119ebc4fe6fe42 (patch) | |
| tree | 99e62de525a9976f355f5916bdcad5c6a0bfba64 /drivers/leds | |
| parent | dt-bindings: iio: document dpot-dac bindings (diff) | |
| download | linux-7fde1484af21f9668e9575bd8a119ebc4fe6fe42.tar.xz linux-7fde1484af21f9668e9575bd8a119ebc4fe6fe42.zip | |
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>
Diffstat (limited to 'drivers/leds')
0 files changed, 0 insertions, 0 deletions