The ina2xx adc driver does not handle differences between INA219/220 and INA226/230/231 completely:
- The 219 uses a 4 bit register field for for the bus/shunt voltage adc integration times each, whereas the 226 uses two 3 bit fields for the integration times and an additional 3 bit averaging field. The first patch correct setting integration times in the config register. - The 219 also has an adjustable PGA. The default setting allows the maximum range, but also reduces accuracy. The second patch adds attributes for shunt PGA gain and bus voltage range (bus voltage PGA), and sets the config register accordingly. Stefan Brüns (2): iio: adc: Fix integration time/averaging for INA219/220 iio: adc: Allow setting Shunt Voltage PGA gain and Bus Voltage range drivers/iio/adc/ina2xx-adc.c | 344 ++++++++++++++++++++++++++++++++++++++++--- 1 file changed, 322 insertions(+), 22 deletions(-) -- 2.12.0
