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CVS commit: src/sys/dev/gpio

Module Name:    src
Committed By:   brad
Date:           Fri Nov 10 13:17:17 UTC 2023

Modified Files:
        src/sys/dev/gpio: gpioirq.c

Log Message:
For /dev/ reads against gpioirq(4) implement the following:

o O_NONBLOCK on reads

o Add a d_poll function and associated sel[init|notify|record|destroy]
  calls to the driver so that select(2) and poll(2) work as expected.

With these in place async use cases work against /dev/gpioirqN

To generate a diff of this commit:
cvs rdiff -u -r1.2 -r1.3 src/sys/dev/gpio/gpioirq.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.

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