on post-fs-data
    chmod 666 /proc/ppb/ppb_camera_power

service camerahalserver /vendor/bin/hw/camerahalserver
    class main
    user cameraserver
    group audio camera input drmrpc sdcard_rw system media graphics
    ioprio rt 4
    capabilities SYS_NICE
    task_profiles CameraServiceCapacity MaxPerformance