michallenc commented on issue #16916:
URL: https://github.com/apache/nuttx/issues/16916#issuecomment-3227345609

   Looking at the ioctls, I'm not sure why 
`arch/risc-v/src/bl808/bl808_gpadc.c` implements `ANIOC_RESET_FIFO` and 
`ANIOC_SAMPLES_ON_READ` at all. These were intended to be common ioctl calls 
and are implemented in an upper layer `drivers/analog/adc.c` to allow 
manipulation with a receive FIFO queue, not to directly access the peripheral's 
hardware queues. 
   
   The call won't even get there, so I would say they can be removed from gpadc 
driver.


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