On 01/03/2018 08:00 PM, Pavel Machek wrote:
On Wed 2018-01-03 19:38:31, Gaëtan Carlier wrote:
Hi Pavel,
On 01/03/2018 06:56 PM, Pavel Machek wrote:
Hi!
I want to integrate MCP45HV51 I2C device to Linux kernel. It is a digital
potentiometer.
I have several questions:
- Is "leds driver" the correct section ?
- On which existing I2C leds driver should I base my code to use the most
recent API/pratice ?
- Maybe it is not needed to write a C driver and everything can be done via
devicetree ?
Umm. What makes you think that LED driver is correct section? LEDs are
little lights...
I know that, but like Led and Backlight, digital potentiometers are just a
device that needs a 0 to 255 value...
So I don't know where to put it maybe in IIO driver ?
Is that _output_ device? What does it control?
Pavel
It is an output with a variable resistance (like DAC is an output with a
variable voltage).[1]
So regarding the webpage of IIO[2], digital potentiometer must be coded
on IIO API.
Thank you taking time to answer me,
Gaëtan.
[1] https://en.wikipedia.org/wiki/Digital_potentiometer
[2] https://wiki.analog.com/software/linux/docs/iio/iio
