I'm upgrading from BBW to BBB.
Used to be you could control pin direction, pullup/down from command line.
But on BBB it seems /sys/kernel/debug/omap_mux is no more, and that's what
I used to use to enable/disable pullups/downs
Now we have this:
root@beaglebone:/sys/class/gpio/gpio49# ls
active_low direction edge power subsystem uevent value
which if your pin is already configured mode 7 seems to be almost enough,
letting you control direction and read value.
So can you also control pullups from some not-so-obviously named file or
are device tree overlays required?
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