jarivanewijk commented on pull request #4635:
URL: https://github.com/apache/incubator-nuttx/pull/4635#issuecomment-945845156


   I rebased my PR again after renaming some of the functions in #4642. Took a 
bit longer to get back to this than anticipated. ;)
   
   I also added a configuration option CONFIG_USERLED_LOWER_READSTATE for the 
changes in this PR. I figured some users may want to keep the previous 
functionality or don't care about the proposed feature to check the LED pin 
state. Otherwise this would also require ALL boards with LEDs to be updated 
with a function definition to read the state of the appropriate pins. This may 
not even be easily possible under all architectures, because the LED pins are 
usually configured as a GPIO output, but it depends on the architecture how and 
if the output pinstate can be read.
   
   This should be ready for review now. Impact should be minimal, as the old 
functionality is preserved by default. I have tested the new functionality on a 
custom board with S32K144 MCU.


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