#!/bin/sh

[ ! -e /dev/pts ] && mkdir -p /dev/pts
[ ! -e /dev/pts/0 ] && mount devpts /dev/pts -t devpts

# TODO enable the lines below once we have support for getprop
# retrieve the product info from Android
# manufacturer=$(getprop ro.product.manufacturer Android)
# model=$(getprop ro.product.model Android)
# serial=$(getprop ro.serialno 0123456789ABCDEF)

#below are now needed in order to use FunctionFS for ADB, tested to work with 3.4+ kernels
if grep -q functionfs /proc/filesystems; then
    mkdir -p /dev/usb-ffs/adb
    mount -t functionfs adb /dev/usb-ffs/adb
    #android-gadget-setup doesn't provide below 2 and without them it won't work, so we provide them here.
    echo adb > /sys/class/android_usb/android0/f_ffs/aliases
    echo ffs > /sys/class/android_usb/android0/functions
fi

manufacturer="$(cat /system/build.prop | grep -o 'ro.product.manufacturer=.*' | cut -d'=' -f 2)"
model="$(cat /system/build.prop | grep -o 'ro.product.model=.*' | cut -d'=' -f 2)"
# get the device serial number from /proc/cmdline directly(since we have no getprop on
# GNU/Linux)
serial="$(cat /proc/cmdline | sed 's/.*androidboot.serialno=//' | sed 's/ .*//')"

echo $serial > /sys/class/android_usb/android0/iSerial
echo $manufacturer > /sys/class/android_usb/android0/iManufacturer
echo $model > /sys/class/android_usb/android0/iProduct

echo "0" > /sys/class/android_usb/android0/enable
echo "18d1" > /sys/class/android_usb/android0/idVendor
echo "D002" > /sys/class/android_usb/android0/idProduct
echo "adb" > /sys/class/android_usb/android0/functions
echo "1" >  /sys/class/android_usb/android0/enable

sleep 4