19 lines
557 B
Plaintext
19 lines
557 B
Plaintext
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#!/bin/bash
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[[ $EUID -eq 0 ]] || {
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echo "root access required" >&2
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exit 1
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}
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MAX_CHARGE_THRESHOLD=$1
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[ "$MAX_CHARGE_THRESHOLD" ] \
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|| MAX_CHARGE_THRESHOLD=75
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DEVICE_SETTING_FILE=/sys/class/power_supply/BAT1/charge_control_end_threshold
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[ "$MAX_CHARGE_THRESHOLD" ] && [[ $MAX_CHARGE_THRESHOLD -ge 40 ]] && [[ $MAX_CHARGE_THRESHOLD -le 100 ]] || {
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echo -e "Value '$MAX_CHARGE_THRESHOLD' is invalid. If you REALLY want to do this, overwrite the setting yourself\n$DEVICE_SETTING_FILE" >&2
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exit 2
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}
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echo "$MAX_CHARGE_THRESHOLD" > "$DEVICE_SETTING_FILE"
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