Support connection to external device via USB serial port
I've been trying to find a way to use my Android tablet to open a shell session on an external headless device e.g. Raspberry Pi. In other words, instead of interfacing to the local Android shell, or a remote device via TCP/IP (telnet or ssh), I want to connect the tablet USB port to the external device USB port and have it open a shell on the external device. The only application that I have found that tries to do this is Android Serial USB Monitor Lite, but it refuses to connect, even though the external device appears to recognize it as a tty. The docs for that package state that it is designed to work with a number of USB-serial converters, so my guess is that it does not see the external device as one of those. In any case that project appears to be dead - last update 11 years ago and the link to the docs on FDroid is broken. It would be great if such a capability could be added to termoneplus.