[ROOT] [Magisk] [Service.d] [Script] [Fix] DriveDroid on Android 9+

fixdd

#!/bin/sh

# run while loop for boot_completed status & sleep 10 needed for magisk service.d
while [ "$(getprop sys.boot_completed | tr -d '\r')" != "1" ]; do sleep 1; done
sleep 10

# save currently active function name
echo "$(ls -al /config/usb_gadget/g1/configs/b.1/)" | grep -Eo f1.* | awk '{print $3}' | cut -d/ -f8 > /data/adb/.fixdd

# loop
# run every 0.5 seconds
while true
do
  # check the app is active
  chkapp="$(pgrep -f drivedroid | wc -l)"
  # check currently active function
  chkfn=$(echo "$(ls -al /config/usb_gadget/g1/configs/b.1/)" | grep -Eo f1.* | awk '{print $3}' | cut -d/ -f8)
  # load previous active function
  chkfrstfn="$(cat /data/adb/.fixdd)"
  if [ "$chkapp" -eq "1" ] && [ "$chkfn" != "mass_storage.0" ]; then
    # add mass_storage.0 config & function and remove currently active function
    rm /config/usb_gadget/g1/configs/b.1/f*
    mkdir -p /config/usb_gadget/g1/functions/mass_storage.0/lun.0/
    ln -s /config/usb_gadget/g1/functions/mass_storage.0 /config/usb_gadget/g1/configs/b.1/f1
  elif [ "$chkapp" -eq "0" ] && [ "$chkfn" = "mass_storage.0" ]; then
    # remove mass_storage.0 function & restore previous function
    rm /config/usb_gadget/g1/configs/b.1/f*
    ln -s /config/usb_gadget/g1/functions/"$chkfrstfn" /config/usb_gadget/g1/configs/b.1/f1
   if [ "$chkfrstfn" = "ffs.adb" ]; then
    setprop sys.usb.config adb
   elif [ "$chkfrstfn" = "ffs.mtp" ]; then
    setprop sys.usb.config mtp
   fi
  fi
  sleep 0.5
done

Hello @Samsara69 and thanks for the response! I have tried to install the kernel but after flashing my phone was stuck at boot. I think it is because my Android version is too high. Do you have any other suggestions? Ideally that can be used with LineageOS.

Sorry dear. You have to find kernel matching to your ROM or ROM matching to this kernel ( the kernel now supports 8.1 and 9.0 AOSP ROM ).
But you're lucky.

I have same problem with my S20+ 5G , and there's no one kernel include Drivedroid.
I tried several solution ,no one working.
Seems to build my own kernel but don't have enough knowledge now.

Hi
You said to somebody "I've updated instructions should be easy to understand." OK but I don't see any instruction on the page where I am!
If you can tell me more!
Thank you for your job! [edit]Excuses the link was not visible!!

Works great on my Pixel 6a!