I am getting an issue in accessing the GPIO pins,
when I am trying to create a GPIO pin access via command line I am getting below mentioned errors:-
root@up-board:~# echo 26 > /sys/class/gpio/export
-sh: echo: write error: Invalid argument
I am using kernel version:
uname -a
Linux up-board 4.4.26-rt19-yocto-preempt-rt #1 SMP PREEMPT RT Wed Apr 19 09:52:51 CEST 2017 x86_64 x86_64 x86_64 GNU/Linux
What is the solution for this kindly help me out regarding this, Thanks in advance.
Hi,
I am getting an issue in accessing the GPIO pins, when I am trying to create a GPIO pin access via command line I am getting below mentioned errors:- root@up-board:~# echo 26 > /sys/class/gpio/export -sh: echo: write error: Invalid argument
Below is the kernel debug output
root@up-board:~# cat /sys/kernel/debug/gpio GPIOs 318-372, platform/INT33FF:03, INT33FF:03:
GPIOs 373-396, platform/INT33FF:02, INT33FF:02:
GPIOs 397-455, platform/INT33FF:01, INT33FF:01:
GPIOs 456-511, platform/INT33FF:00, INT33FF:00:
I am using kernel version: uname -a Linux up-board 4.4.26-rt19-yocto-preempt-rt #1 SMP PREEMPT RT Wed Apr 19 09:52:51 CEST 2017 x86_64 x86_64 x86_64 GNU/Linux
What is the solution for this kindly help me out regarding this, Thanks in advance.