feat(deck): Add service for setting the max battery charge level exposed by the latest steamdeck_hwmon driver

Author: KyleGospo

system_files/deck/shared/etc/default/batterylimit

@@ -0,0 +1,2 @@
+# Maximum amount the battery will charge to, including when the device is off.
+MAX_BATTERY_CHARGE_LEVEL=80

system_files/deck/shared/etc/systemd/system/batterylimit.service

@@ -0,0 +1,10 @@
+[Unit]
+Description=Service for setting the Steam Deck Battery Charging Limit
+
+[Service]
+Type=oneshot
+EnvironmentFile=-/etc/default/%p
+ExecStart=echo ${MAX_BATTERY_CHARGE_LEVEL} > /sys/class/hwmon/hwmon*/max_battery_charge_level
+
+[Install]
+WantedBy=multi-user.target

system_files/deck/shared/etc/systemd/system/ryzenadj.service

@@ -4,7 +4,7 @@ Description=CPU Curve Undervolt for Steam Deck
 [Service]
 Type=oneshot
 EnvironmentFile=-/etc/default/%p
-ExecStart=/usr/sbin/ryzenadj --set-coall={UNDERVOLT_AMOUNT}
+ExecStart=/usr/sbin/ryzenadj --set-coall=${UNDERVOLT_AMOUNT}
 
 [Install]
 WantedBy=multi-user.target suspend.target hibernate.target hybrid-sleep.target suspend-then-hibernate.target ac.target battery.target