I do a fair amount of physical unplugging and replugging of Android devices over USB while debugging. I used to get occasional hangs when doing that, so I run s

I do a fair amount of physical unplugging and replugging of Android devices over USB while debugging. I used to get occasional hangs when doing that, so I run scrcpy thusly in a bash wrapper script on Linux hosts: #!/bin/bash # Update: January 2, 2021 # # script to permit an end user to mirror an android device's GUI # on a Linux GUI desktop in a window of its own with # mouse and keyboard interactivity # # Prerequisites: # # android device with adb debugging enabled # adb (i.e. android-tools-adb) # scrcpy (android screen mirror tool) # USB connection between Android phone and Linux machine # # Setup: # # Log in as root and do the following: # # 1. use visudo to create or edit the file /etc/sudoers.d/adbmount # with the following entries (use suitable paths to # the binaries) to authorize the end user for fuser # and adb use: # # %users ALL=(myth) NOPASSWD: /bin/fuser # %users ALL=(myth) NOPASSWD: /bin/adb # # 2. create a new group or add an entry in /etc/group # for "plugdev" with the end user as member, such as: # # plugdev:x:46:mythical # # 3. connect the android device to the Linux machine via # a USB cable and use the lsusb command to get the # android device's identifying info, such as: # # Bus 001 Device 012: ID 18d1:XXXX Google Inc. # # 4. create the file /etc/udev/rules.d/51-adbmount.rules # with the following line, using the id from step 3: # # SUBSYSTEM=="usb", ATTR{idVendor}=="18d1", ATTR{idProduct}=="XXXX", MODE="0666", GROUP="plugdev" # # 5. run the following command to load the new rules so # that udev will now allow members of group "plugdev" # to access the android device: # # udevadm control --reload-rules # # 6. test this script as the specified end user instead # of as root # first kill any hanging adb tcp port 27183: sudo /bin/fuser -k -n tcp 27183 2>/dev/null # force any running adb server process to stop: sudo /bin/adb kill-server 2>/dev/null # force the adb server to start and scan USB bus: sudo /bin/adb devices # start the scrpy app: /bin/scrcpy