you have to set the IOG24 as an output, because default it is set as input.
search some examples / the foxgroup for SETGET.
greets,ernst
2007/2/12, Daniel Boone <[EMAIL PROTECTED]>:
>
> Hi
>
> I am trying to set iog24 as an output line.
> I have also the sx18 expansionboard.
> A led call d2 is on input/output line iog24.
> I'm trying to make it work.
> I tried this source code
>
> #include "stdio.h"
> #include "stdlib.h"
> #include "unistd.h"
> #include "sys/ioctl.h"
> #include "fcntl.h"
> #include "asm/etraxgpio.h"
>
> int main(void){
> int fd;
> int iomask;
>
> if ((fd = open("/dev/gpiog", O_RDWR))<0) {
> printf("Open error on /dev/gpiog\n");
> exit(0);
> }
> else{
> printf("open ok \n");
> }
>
> iomask= 1<<24;
>
> printf("try to set iog24 as output \n");
> ioctl(fd,_IO(ETRAXGPIO_IOCTYPE,IO_SETBITS),iomask);
>
> close(fd);
> }
>
> Did I do something wrong or have I forgotten something?
>
> thanks
>
>
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