From 259e967cbf855d1ed3886c7afafb1bfe6ab11645 Mon Sep 17 00:00:00 2001 From: Aaron Marcher Date: Mon, 12 Jun 2017 23:55:27 +0200 Subject: add battery_power function --- slstatus.c | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) (limited to 'slstatus.c') diff --git a/slstatus.c b/slstatus.c index 8241451..caccc6e 100644 --- a/slstatus.c +++ b/slstatus.c @@ -35,6 +35,7 @@ struct arg { static char *smprintf(const char *fmt, ...); static char *battery_perc(const char *bat); +static char *battery_power(const char *bat); static char *battery_state(const char *bat); static char *cpu_perc(void); static char *datetime(const char *fmt); @@ -118,6 +119,25 @@ battery_perc(const char *bat) return smprintf("%d%%", perc); } +static char * +battery_power(const char *bat) +{ + char path[PATH_MAX]; + FILE *fp; + int watts; + + snprintf(path, sizeof(path), "%s%s%s", "/sys/class/power_supply/", bat, "/power_now"); + fp = fopen(path, "r"); + if (fp == NULL) { + warn("Failed to open file %s", path); + return smprintf("%s", UNKNOWN_STR); + } + fscanf(fp, "%i", &watts); + fclose(fp); + + return smprintf("%d", (watts + 500000) / 1000000); +} + static char * battery_state(const char *bat) { -- cgit v1.2.3