GPIO Support on pcm043

Tim Sander tim.sander at
Fri May 20 09:30:19 EDT 2011

Hi Eric

Thanks for your answer
> > Is there some obvious error on my side or is there no gpio
> > support for pcm043? At least there seems to be support for
> > the gpio ports on imx?
> > Any hints?
> you first need to configure the mux of the pins to GPIO mode, then you can
> use them as gpio.
After tripping into that trap multiple times, i've already checked that, but
forgot to mention it:
static struct pad_desc pcm043_pads[] = {

These should be the gpio nrs 4 and 5 which means that
gpio_set_direction 4 1
gpio_set_direction 4 0
should light up the led.

The led is working under linux so it's some problem with the gpio setup.


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