The best way to do this is to build your own Android OS and set the SELINUX command line in the build. You also need to set the tty ports in the init.rc to be accessible from the user space. Setting them to 0666 works for me. I also do this with the I2C and SPI etc. Thank you v8dave, I know the bes...

Hi ,i wrote the app in android studio 4.2, in that app i want to read data from serial port 'UART 3' but i got a security exception that say selinux setenforce enforced, i use this command in adb to set ecnforced to permitive " adb shell su 0 setenforce 0" and then i can read data, but aft...