Don’t use deprecated /proc/acpi for AC detection

brightd uses the old /proc/acpi/ac_adapter/AC/state to determine
if the system is on AC. Instead, use /sys/class/power_supply/AC/online
for this functionality.

Bug-Debian: https://bugs.debian.org/754494

Gbp-Pq: Name 0002-Don-t-use-deprecated-proc-acpi-for-AC-detection.patch

1 files changed, 4 insertions, 4 deletions

diff --git a/brightd.c b/brightd.c
index 244dd60..3384c7a 100644
--- a/brightd.c
+++ b/brightd.c
@@ -183,16 +183,16 @@ void setBrightness(int level) { /*{{{*/
  */
 int isOnAC() /*{{{*/
 {
-	char line[255];
-	FILE *ac = fopen("/proc/acpi/ac_adapter/AC/state", "r");
+	int ac_state;
+	FILE *ac = fopen("/sys/class/power_supply/AC/online", "r");
 	if(!ac) {
 		/* Ignore this */
 		return 0;
 	}
-	fgets(line, 255, ac);
+	ac_state = fgetc(ac);
 	fclose(ac);
 
-	return strstr(line, "on-line") != NULL;
+	return ac_state != '0';
 } /*}}}*/
 
 /*