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-rwxr-xr-xscripts/battery.sh23
1 files changed, 16 insertions, 7 deletions
diff --git a/scripts/battery.sh b/scripts/battery.sh
index 05ac440..ebc8521 100755
--- a/scripts/battery.sh
+++ b/scripts/battery.sh
@@ -3,7 +3,15 @@
# author: johannst
bat="${BLOCK_INSTANCE:-BAT0}"
-[[ ! -f "/sys/class/power_supply/$bat/type" ]] && exit 0
+[[ ! -f "/sys/class/power_supply/$bat/type" ]] && exit 1
+
+# Auto-detect file prefix for battery files
+for prefix in energy charge; do
+ [[ -f "/sys/class/power_supply/$bat/${prefix}_now" ]] && {
+ file_prefix=$prefix
+ break
+ }
+done && test -n $file_prefix || exit 1
show_bat_use_design_capacity=0
show_bat_status=0
@@ -23,11 +31,11 @@ done
# Unknown, Charging, Discharging, Full
BAT_STATUS=$(cat /sys/class/power_supply/$bat/status)
-BAT_NOW=$(cat /sys/class/power_supply/$bat/charge_now)
-[[ $show_bat_use_design_capacity == 1 ]] \
- && BAT_FULL=$(cat /sys/class/power_supply/$bat/charge_full_design) \
- || BAT_FULL=$(cat /sys/class/power_supply/$bat/charge_full)
+BAT_NOW=$(cat /sys/class/power_supply/$bat/${file_prefix}_now)
+[[ $show_bat_use_design_capacity == 1 ]] \
+ && BAT_FULL=$(cat /sys/class/power_supply/$bat/${file_prefix}_full_design) \
+ || BAT_FULL=$(cat /sys/class/power_supply/$bat/${file_prefix}_full)
BAT_POWER=$(echo $BAT_NOW $BAT_FULL | awk '{ print int($1 * 100 / $2); }')
OUT="$BAT_POWER%"
@@ -41,9 +49,9 @@ OUT="$BAT_POWER%"
echo "$OUT"
-[[ $show_bat_color_output == 1 ]] && \
+[[ $show_bat_color_output == 1 ]] && {
# print twice, else colors not working?!
- echo "$OUT"
+ echo ""
if [[ $BAT_POWER -ge 80 ]]; then
# green
echo "#00FF00"
@@ -57,4 +65,5 @@ echo "$OUT"
# red
echo "#FF0000"
fi
+}