adc: ads1x1x: improve behaviour during i2c errors
Fixes #61401
The ADS1x1x driver has a bad habit of assuming i2c operations will
always suceed - this fixes the two worse cases in the code I could
identify (there may yet be more).
* During initial ADC setup, if either of the two I2C operations
(read or write) fails, raise the error immediately to the caller
rather than letting it fall through to the acquisition thread.
This ensures that we only ever attempt to give a result that was
definitely connected to our attempt to start the capture.
* If the acquisition thread encounters an I2C error, raise the error
but do not terminate the aquisition thread. This ensures the
application can attempt to fix the condition that caused the I2C
error and try again.
Signed-off-by: Chris Collins <kuroneko@sysadninjas.net>
1 file changed
