Hi folks,
Having a brain fade moment I think.
I'm interested utilising in the BB-RELAY-4PORT overlay, so I've loaded
it up.
# cat /sys/devices/platform/bone_capemgr/slots
0: PF---- -1
1: PF---- -1
2: PF---- -1
3: PF---- -1
9: P-O-L- 0 Override Board Name,00A0,Override Manuf,BB-RELAY-4PORT
Thing is, I was kind of expecting the GPIO pins to become available
similar if I had "echo PIN_NUMBER > /sys/class/gpio/export"
But that doesn't seem to be the case. There's nothing there.
# ls /sys/class/gpio/
export gpiochip0 gpiochip32 gpiochip64 gpiochip96 unexport
What (apart from a clue) am I missing? Does the overlay merely configure
the hardware for exclusive use and I still have to initialise via
C/C++/Bash etc. (ie, Linux itself doesn't pick up the hardware config
and do this for me)?
Thanks in advance,
Pete.
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