GPIO in the kernel: an introduction
GPIO in the kernel: an introduction
Posted Jul 20, 2016 7:52 UTC (Wed) by codename_y (guest, #109837)Parent article: GPIO in the kernel: an introduction
Hi, I have tried to make a driver that utilize linux/gpio.h, but when I try to insmod it, I keep getting this error:
[ 3030.112044] gpiotest: Unknown symbol gpio_direction_output (err 0)
[ 3030.118537] gpiotest: Unknown symbol gpio_request (err 0)
Could you give me some insight about why this happened? I have tried to find by myself but no luck so far.
Thanks for your help
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