On Sun, Mar 25, 2012 at 05:33:32PM -0700, Ben Widawsky wrote:
> +int main(int argc, char *argv[])
> +{
> + const int device = drm_get_card(0);
> + char *path, *pathp, *pathpp;
> + int fd, ret;
> + unsigned int value1, value1p, value1pp, value2, value2p, value2pp;
> + int diff;
> +
> + /* Use drm_open_any to verify device existence */
> + fd = drm_open_any();
> + close(fd);
> +
> + ret = asprintf(&path, "/sys/class/drm/card%d/power/rc6", device);
> + assert(ret != -1);
> + ret = asprintf(&pathp, "/sys/class/drm/card%d/power/rc6p", device);
> + assert(ret != -1);
> + ret = asprintf(&pathpp, "/sys/class/drm/card%d/power/rc6pp", device);
> + assert(ret != -1);
> +
> + value1 = readit(path);
> + value1p = readit(pathp);
> + value1pp = readit(pathpp);
> + // Sleep for 3 seconds and compare
> + sleep(3);
> + value2 = readit(path);
> + value2p = readit(pathp);
> + value2pp = readit(pathpp);
> +
> + diff = (value2pp - value1pp) +
> + (value2p - value1p) +
> + (value2 - value1);
> +
> + /* Plenty of fudge */
> + if (diff > 3900 || diff < 2100) {
> + printf("%d\n", diff);
While I bitch around: A slightly more informative error message could be
usueful ;-)
Cheers, Daniel
--
Daniel Vetter
Mail: daniel at ffwll.ch
Mobile: +41 (0)79 365 57 48
