device_amazon_mt8127-common/rootdir/init.mt8127.usb.rc

on boot
    write /sys/class/android_usb/android0/iManufacturer ${ro.product.manufacturer}
    write /sys/class/android_usb/android0/idVendor ${ro.usb.vid}
    write /sys/class/android_usb/android0/iProduct "Fire"

# Used to disable USB when switching states
on property:sys.usb.config=none
    stop adbd
    write /sys/class/android_usb/android0/enable 0
    write /sys/class/android_usb/android0/bDeviceClass 0
    setprop sys.usb.state ${sys.usb.config}

# adb
on property:sys.usb.config=adb
    write /sys/class/android_usb/android0/enable 0
    write /sys/class/android_usb/android0/idVendor ${ro.usb.vid}
    write /sys/class/android_usb/android0/idProduct ${ro.usb.pid.adb}
    write /sys/class/android_usb/android0/iSerial ${ro.serialno}
    write /sys/class/android_usb/android0/functions ${sys.usb.config}
    write /sys/class/android_usb/android0/enable 1
    start adbd
    setprop sys.usb.state ${sys.usb.config}

# mtp
on property:sys.usb.config=mtp
    write /sys/class/android_usb/android0/enable 0
    write /sys/class/android_usb/android0/idVendor ${ro.usb.vid}
    write /sys/class/android_usb/android0/idProduct ${ro.usb.pid.mtp}
    write /sys/class/android_usb/android0/iSerial ${ro.serialno}
    write /sys/class/android_usb/android0/functions ${sys.usb.config}
    write /sys/class/android_usb/android0/enable 1
    setprop sys.usb.state ${sys.usb.config}

# mtp,adb
on property:sys.usb.config=mtp,adb
    write /sys/class/android_usb/android0/enable 0
    write /sys/class/android_usb/android0/idVendor ${ro.usb.vid}
    write /sys/class/android_usb/android0/idProduct ${ro.usb.pid.mtp.adb}
    write /sys/class/android_usb/android0/iSerial ${ro.serialno}
    write /sys/class/android_usb/android0/functions mtp,adb
    write /sys/class/android_usb/android0/enable 1
    start adbd
    setprop sys.usb.state ${sys.usb.config}

# ptp
on property:sys.usb.config=ptp
    write /sys/class/android_usb/android0/enable 0
    write /sys/class/android_usb/android0/idVendor ${ro.usb.vid}
    write /sys/class/android_usb/android0/idProduct ${ro.usb.pid.ptp}
    write /sys/class/android_usb/android0/iSerial ${ro.serialno}
    write /sys/class/android_usb/android0/functions ${sys.usb.config}
    write /sys/class/android_usb/android0/enable 1
    setprop sys.usb.state ${sys.usb.config}

# ptp,adb
on property:sys.usb.config=ptp,adb
    write /sys/class/android_usb/android0/enable 0
    write /sys/class/android_usb/android0/idVendor ${ro.usb.vid}
    write /sys/class/android_usb/android0/idProduct ${ro.usb.pid.ptp.adb}
    write /sys/class/android_usb/android0/iSerial ${ro.serialno}
    write /sys/class/android_usb/android0/functions ${sys.usb.config}
    write /sys/class/android_usb/android0/enable 1
    start adbd
    setprop sys.usb.state ${sys.usb.config}

# USB accessory configuration
on property:sys.usb.config=accessory
    write /sys/class/android_usb/android0/enable 0
    write /sys/class/android_usb/android0/idVendor 18d1
    write /sys/class/android_usb/android0/idProduct 2d00
    write /sys/class/android_usb/android0/iSerial ${ro.serialno}
    write /sys/class/android_usb/android0/functions ${sys.usb.config}
    write /sys/class/android_usb/android0/enable 1
    setprop sys.usb.state ${sys.usb.config}

# USB accessory configuration, with adb
on property:sys.usb.config=accessory,adb
    write /sys/class/android_usb/android0/enable 0
    write /sys/class/android_usb/android0/idVendor 18d1
    write /sys/class/android_usb/android0/idProduct 2d01
    write /sys/class/android_usb/android0/iSerial ${ro.serialno}
    write /sys/class/android_usb/android0/functions ${sys.usb.config}
    write /sys/class/android_usb/android0/enable 1
    start adbd
    setprop sys.usb.state ${sys.usb.config}

# audio accessory configuration
on property:sys.usb.config=audio_source
    write /sys/class/android_usb/android0/enable 0
    write /sys/class/android_usb/android0/idVendor 18d1
    write /sys/class/android_usb/android0/idProduct 2d02
    write /sys/class/android_usb/android0/iSerial ${ro.serialno}
    write /sys/class/android_usb/android0/functions ${sys.usb.config}
    write /sys/class/android_usb/android0/enable 1
    setprop sys.usb.state ${sys.usb.config}

# audio accessory configuration, with adb
on property:sys.usb.config=audio_source,adb
    write /sys/class/android_usb/android0/enable 0
    write /sys/class/android_usb/android0/idVendor 18d1
    write /sys/class/android_usb/android0/idProduct 2d03
    write /sys/class/android_usb/android0/iSerial ${ro.serialno}
    write /sys/class/android_usb/android0/functions ${sys.usb.config}
    write /sys/class/android_usb/android0/enable 1
    start adbd
    setprop sys.usb.state ${sys.usb.config}

# USB and audio accessory configuration
on property:sys.usb.config=accessory,audio_source
    write /sys/class/android_usb/android0/enable 0
    write /sys/class/android_usb/android0/idVendor 18d1
    write /sys/class/android_usb/android0/idProduct 2d04
    write /sys/class/android_usb/android0/iSerial ${ro.serialno}
    write /sys/class/android_usb/android0/functions ${sys.usb.config}
    write /sys/class/android_usb/android0/enable 1
    setprop sys.usb.state ${sys.usb.config}

# USB and audio accessory configuration, with adb
on property:sys.usb.config=accessory,audio_source,adb
    write /sys/class/android_usb/android0/enable 0
    write /sys/class/android_usb/android0/idVendor 18d1
    write /sys/class/android_usb/android0/idProduct 2d05
    write /sys/class/android_usb/android0/iSerial ${ro.serialno}
    write /sys/class/android_usb/android0/functions ${sys.usb.config}
    write /sys/class/android_usb/android0/enable 1
    start adbd
    setprop sys.usb.state ${sys.usb.config}

# USB Charging Only configuration
on property:sys.usb.config=charging
    setprop sys.usb.state ${sys.usb.config}
    setprop sys.usb.charging yes

on property:sys.usb.charging=yes
    write /sys/devices/platform/mt_usb/cmode 2

on property:sys.usb.charging=no
    write /sys/devices/platform/mt_usb/cmode 1

# acm third port for bt
on property:sys.usb.config=acm_third
    write /sys/class/android_usb/android0/enable 0
    write /sys/class/android_usb/android0/idVendor 0BB4
    write /sys/class/android_usb/android0/idProduct 2006
    write /sys/class/android_usb/android0/f_acm/port_index 3
    write /sys/class/android_usb/android0/functions mass_storage,adb,acm
    write /sys/class/android_usb/android0/enable 1
    start adbd
    setprop sys.usb.state ${sys.usb.config}

# adb root
on property:service.adb.root=1
    write /sys/class/android_usb/android0/enable 0
    start adbd
    write /sys/class/android_usb/android0/enable 1