On 5/16/20 4:26 AM, Jonathan Bakker wrote:
In the discussion around adding the GP2A002 light driver, there came
up the question of what to do when a system emulates a current ADC
by using a voltage ADC and a resistor. Rather than adding it on
a per-driver basis, it was suggested(1) to add a minimal IIO driver
to support this situation.
The new driver is fairly simple - it simply takes a voltage ADC and
a resistor value in ohms exposed as the scale and outputs a current.
It has been tested on a first-gen Galaxy S device which has the above
mentioned GP2A002 chip connected to the voltage ADC resistor complex.
1) https://lore.kernel.org/linux-iio/20200202150843.762c6897@archlinux/
Hi,
There is afe/iio-rescale.c, which I think already implements this
functionality.
- Lars
