Oops, sorry about that, you're absolutely right. The current-sense-shunt part of iio-rescale is exactly what I was looking for. Thanks, Jonathan On 2020-05-15 11:28 p.m., Lars-Peter Clausen wrote: > 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 > >
