diff options
| -rw-r--r-- | power/power.c | 15 |
1 files changed, 7 insertions, 8 deletions
diff --git a/power/power.c b/power/power.c index 364a563..f80f3e8 100644 --- a/power/power.c +++ b/power/power.c @@ -23,6 +23,7 @@ #include <fcntl.h> #include <malloc.h> #include <stdbool.h> +#include <stdlib.h> #include <string.h> #include <unistd.h> @@ -124,11 +125,14 @@ static void sysfs_write(const char *path, char *s) close(fd); } -static unsigned int read_panel_brightness() { - unsigned int i, ret = 0; +static int read_panel_brightness() { + int ret = 0; int read_status; // brightness can range from 0 to 255, so max. 3 chars + '\0' char panel_brightness[4]; + // for strtol + char *dummy; + const int base = 10; read_status = sysfs_read(PANEL_BRIGHTNESS, panel_brightness, sizeof(PANEL_BRIGHTNESS)); if (read_status < 0) { @@ -136,12 +140,7 @@ static unsigned int read_panel_brightness() { return -1; } - for (i = 0; i < (sizeof(panel_brightness) / sizeof(panel_brightness[0])); i++) { - if (isdigit(panel_brightness[i])) { - ret += (panel_brightness[i] - '0'); - } - } - + ret = strtol(panel_brightness, &dummy, base); ALOGV("%s: Panel brightness is: %d", __func__, ret); return ret; |