Hi Robert, Phil
Thanks for the fast response. So some conclusions that I´m reaching are
. Waht I need for my pogram is to code some .c files to start a
communication through a UART.
. I'll need to change a pin function to use the UART2_RX (P9_8), that
according the reference manual it´s not by default the UART2_RX.
. I believe that my options are:
. (a) I need to edit the DTB?. Compile a DTS file where this pin is
configured as I want
. (b) Recompile the kernel with the Phil option (config-pin.c) , and
I can just edit a file (in /sys)
. (c) Is there an API function, like open(), that can let me change
the pin function directly in the .c source of my program?
Thanks a lot for the support, sorry to ask so many things.
Regards.
El dom., 3 de mar. de 2019 a la(s) 06:09, Philip Munts (
[email protected]) escribió:
> You could try my config-pin replacement written in C:
> http://git.munts.com/muntsos/bootkernel/initramfs/config-pin.c
>
> Unlike the original config-pin script, my replacement derives all pin
> configuration information by reading files in /sys, and doesn't have any
> platform dependencies. I haven't used an xM in years but it seems like it
> ought to work.
>
> Phil
>
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