I've loaded a DeviceTree overlay to mux GPIO[4] and GPIO[5] to p9[18] and
p9[17] respectively:
DTS file:
0x15C 0x07 /* P9_17 gpio[5] OUTPUT MODE7 - The LED Output */
0x158 0x07 /* P9_18 gpio[4] OUTPUT MODE7 - The LED Output */
Compiled and loaded:
root@bbbA:/sys/class/gpio/gpio5# cat $SLOTS
0: 54:PF---
1: 55:PF---
2: 56:PF---
3: 57:PF---
4: ff:P-O-L Bone-LT-eMMC-2G,00A0,Texas Instrument,BB-BONE-EMMC-2G
5: ff:P-O-L Bone-Black-HDMI,00A0,Texas Instrument,BB-BONELT-HDMI
9: ff:P-O-L Override Board Name,00A0,Override Manuf,JB-GPIO-DEMO
I can control GPIO[4] just fine, but GPIO[5] refuses to budge:
root@bbbA:/sys/class/gpio# echo 5 >export
root@bbbA:/sys/class/gpio# cd gpio5
root@bbbA:/sys/class/gpio/gpio5# cat direction
out
root@bbbA:/sys/class/gpio/gpio5# cat value
0
root@bbbA:/sys/class/gpio/gpio5# echo 1 >value
root@bbbA:/sys/class/gpio/gpio5# cat value
0
root@bbbA:/sys/class/gpio/gpio5#
Any ideas??
--
For more options, visit http://beagleboard.org/discuss
---
You received this message because you are subscribed to the Google Groups
"BeagleBoard" group.
To unsubscribe from this group and stop receiving emails from it, send an email
to [email protected].
For more options, visit https://groups.google.com/d/optout.
