From d12d50d107d403c3cf4dfe24bb63ce1006d0e025 Mon Sep 17 00:00:00 2001
From: Chris Wilson <chris@chris-wilson.co.uk>
Date: Mon, 2 Jul 2012 14:09:21 +0100
Subject: [PATCH] sna: Skip hidden and special entries inside
 /sys/class/backlight

Just to avoid the warnings after fallback to comparing the d_name to
the list of known interfaces.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
---
 src/sna/sna_display.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/sna/sna_display.c b/src/sna/sna_display.c
index 0d9e4741..649b66f2 100644
--- a/src/sna/sna_display.c
+++ b/src/sna/sna_display.c
@@ -331,6 +331,9 @@ sna_output_backlight_init(xf86OutputPtr output)
 		char buf[100];
 		int fd, v;
 
+		if (*de->d_name == '.')
+			continue;
+
 		snprintf(path, sizeof(path), "%s/%s/type",
 			 BACKLIGHT_CLASS, de->d_name);