Mark unused parameters, fix compiler warnings

[slstatus.git] / components / battery.c

diff --git a/components/battery.c b/components/battery.c
index e997e4c..4c6b4f5 100644 (file)
--- a/components/battery.c
+++ b/components/battery.c
@@ -16,8 +16,7 @@
 
                snprintf(path, sizeof(path), "%s%s%s", "/sys/class/power_supply/",
                         bat, "/capacity");
-               return (pscanf(path, "%i", &perc) == 1) ?
-                      bprintf("%d", perc) : NULL;
+               return (pscanf(path, "%i", &perc) == 1) ? bprintf("%d", perc) : NULL;
        }
 
        const char *
@@ -29,7 +28,6 @@
                } map[] = {
                        { "Charging",    "+" },
                        { "Discharging", "-" },
-                       { "Full",        "=" },
                };
                size_t i;
                char path[PATH_MAX], state[12];
@@ -54,11 +52,13 @@
        #include <unistd.h>
 
        const char *
-       battery_perc(const char *null)
+       battery_perc(const char *bat)
        {
                struct apm_power_info apm_info;
                int fd;
 
+               UNUSED(bat); /* no way to specify battery on OpenBSD */
+
                fd = open("/dev/apm", O_RDONLY);
                if (fd < 0) {
                        fprintf(stderr, "open '/dev/apm': %s\n", strerror(errno));
@@ -90,6 +90,8 @@
                        { APM_AC_OFF,     "-" },
                };
 
+               UNUSED(bat); /* no way to specify battery on OpenBSD */
+
                fd = open("/dev/apm", O_RDONLY);
                if (fd < 0) {
                        fprintf(stderr, "open '/dev/apm': %s\n", strerror(errno));