On Thu, May 26, 2016 at 05:36:09PM +0300, Ville Syrjälä wrote:
> > +
> > + for (int n = 0; n < 16; n++) {
> > + int len = sprintf(path, "/sys/class/drm/card%d", n);
> > + sprintf(path + len, "/error");
>
> That's goint to limit this to i915. I was thinking we could pass
> the drm_fd here to find the correct minor for it.
Hah, I was rewriting it to avoid the i915 presumption. Using fstat and
comparing sysfs/cardN/dev is what I went with. Pretty much equivalent to
drmGetDeviceNameFromFd(), yes.
> > +bool igt_sysfs_set(const char *filename, const char *value)
> > +{
> > + int sysfs = __igt_sysfs_singleton();
> > + int fd, len, ret;
> > +
> > + if (sysfs < 0)
> > + return false;
> > +
> > + fd = openat(sysfs, filename, O_WRONLY);
> > + if (fd < 0)
> > + return false;
> > +
> > + len = strlen(value);
> > + ret = write(fd, value, len);
>
> EINTR?
Pesky signals.
-Chris
--
Chris Wilson, Intel Open Source Technology Centre
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