[Unit]
Description=Raspberry Pi bluetooth helper
Requires=hciuart.service bluetooth.service
After=hciuart.service
Before=bluetooth.service

[Service]
Type=oneshot
ExecCondition=/bin/sh -c '[ "$(cat /proc/device-tree/$(cat /proc/device-tree/aliases/bluetooth)/status)" != "okay" ]'
ExecStart=/usr/bin/bthelper %I
RemainAfterExit=yes