[hansel]

Hi,
I wrote a small program to check if a button is pressed:

* ----- Small test program to check which button is pressed ---------
 * Prints a string (2 characters) to stdout:
 * FF:  No key pressed
 * 00:  Connect (IDS)
 * 01:  Button avove page bar
 * 02:  Top left button
 * 03:  NEWS
 * 04:  BOOKS
 * 05:  DOCS
 * 06:  NOTES
 * 07:  page bar left
 * 08:  page bar right
 * 09:  UP arrow
 * 0A:  DOT (enter)
 * 0B:  DOWN arrow
 * 0E:  Power on button
 * E0:  Error, cannot open device
 * E1:  Error, cannot get button state
 */

#include <fcntl.h>
#include <stdio.h>
#include <unistd.h>
#include <sys/ioctl.h>

#define BUTTON_IOCTL_BASE               'b'
#define BUTTON_IOCTL_GET_STATUS         _IOR( BUTTON_IOCTL_BASE,7,unsigned int)

int main(int argc, char *argv[]) {
    int i;
    int status;
    int dev;

    if ((dev = open("/dev/buttons", O_RDWR)) < 0) {
        fprintf(stderr,"ERROR opening failed\n");
        status = 0xe0;
    }
    else if (ioctl(dev, BUTTON_IOCTL_GET_STATUS, &status)) {
        fprintf(stderr, "ERROR: BUTTON_IOCTL_GET_STATUS failed\n");
        status = 0xe2;
    }
    printf("%02X", status & 0xff);
    return 0;
}

It can be compiled as follows (with de development kit installed and running setup_build_env.sh)

arm-linux-gcc checkbutton.c -o checkbutton

It works like a charm (when I run it on the iliad via ssh), except when I run it from the startup scripts (like /home/root/start.sh). And THAT's why I wrote it in the first place: to activate special things by holding a button while booting...

ANY idea what might be happening? The program always returns 'FF', no key pressed...

EDIT: when I do a lsmod just before calling buttoncheck, I see tha the button module is loaded...