Backlight fixes

Open the "actual_brightness" file as read only, since we only read from it.
Also set an initial backlight_duty_cycle at init time so we don't set the
brightness to 0 at startup.
This commit is contained in:
Jesse Barnes 2007-11-14 16:44:34 -08:00
parent 53e3693ef1
commit e64f492969
1 changed files with 3 additions and 1 deletions

View File

@ -295,7 +295,7 @@ i830_lvds_get_backlight_kernel(xf86OutputPtr output)
sprintf(path, "%s/%s/actual_brightness", BACKLIGHT_CLASS,
backlight_interfaces[backlight_index]);
fd = open(path, O_RDWR);
fd = open(path, O_RDONLY);
if (fd == -1) {
xf86DrvMsg(pScrn->scrnIndex, X_ERROR, "failed to open %s for backlight "
"control: %s\n", path, strerror(errno));
@ -1015,6 +1015,8 @@ i830_lvds_init(ScrnInfoPtr pScrn)
break;
}
dev_priv->backlight_duty_cycle = dev_priv->backlight_max;
return;
disable_exit: