On 06/23/2017 07:33 AM, Linus Walleij wrote:

I think using "lsgpio" fron tools/gpio/lsgpio.c is better to inspect
the available GPIOs.

If you haven't tested the GPIO tools, please try it out.

Unfortunately, this tool isn't very useful:

$ sudo ./lsgpio
GPIO chip: gpiochip0, "QCOM8001:00", 150 GPIO lines
         line  0: unnamed unused [output]
         line  1: unnamed unused [output]
         line  2: unnamed unused [output]
         line  3: unnamed unused [output]
         line  4: unnamed unused [output]
         line  5: unnamed unused [output]
         line  6: unnamed unused [output]
         line  7: unnamed unused [output]
         line  8: unnamed unused [output]
         line  9: unnamed unused [output]
         line 10: unnamed unused [output]
         line 11: unnamed unused [output]
         line 12: unnamed unused [output]
         line 13: unnamed unused [output]
         line 14: unnamed unused [output]
         line 15: unnamed unused [output]
         line 16: unnamed unused [output]
         line 17: unnamed unused [output]
         line 18: unnamed unused [output]
         line 19: unnamed unused [output]
         line 20: unnamed unused [output]
         line 21: unnamed unused [output]
         line 22: unnamed unused [output]
         line 23: unnamed unused [output]
         line 24: unnamed unused [output]
         line 25: unnamed unused [output]
         line 26: unnamed unused [output]
         line 27: unnamed unused [output]
         line 28: unnamed unused [output]
         line 29: unnamed unused [output]
         line 30: unnamed unused [output]
         line 31: unnamed unused [output]
         line 32: unnamed unused [output]
         line 33: unnamed unused [output]
         line 34: unnamed unused [output]
         line 35: unnamed unused [output]
         line 36: unnamed unused
         line 37: unnamed "sysfs" [kernel]
         line 38: unnamed unused
         line 39: unnamed unused
         line 40: unnamed unused [output]
	...

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