Linux virtual tty

Question

I created my own Long Range RF USB.

[USB device] -> [Raspberry PI] -> [myTxApp] -> [RF device *(not WiFi)] -> [RF device] -> [Laptop] -> [myRxApp] -> [Virtual device]

I tested it on USB Webcam, and it work perfect, and i can access Webcam from any GUI like VLC

# Tx
gst-launch-1.0 -q v4l2src ! ... ! fdsink sync=false | ./tx

# Rx
dpkg-reconfigure v4l2loopback-dkms
modprobe -v v4l2loopback
./rx | gst-launch-1.0 -q fdsrc ! ... ! v4l2sink sync=false

• Now i want do same thing with Serial device like Arduino UNO, all thing work perfect and i can send and receive serial on Terminal, but i can't access serial using any GUI like Arduino IDE, i try use virtual tty like tty0tty and Socat, it works in terminal only and Arduino IDE not detect virtual tty :( .

• In windows com0com can create virtual serial works perfect and Arduino IDE detect virtual serial :) .

To be clear: How make GUI like Arduino IDE detect virtual tty on Linux?

Solution: https://stackoverflow.com/questions/23867143/null-modem-emulator-com0com-for-linux Arduino IDE can detect virtual tty from Socat and tty0tty on Linux, just open Arduino IDE as root

# Ubuntu
$ sudo arduino

# Debian
$ su
$ arduino

And now, is there any way to make Arduino IDE detect virtual tty without root ?

Answer 1

1) Did you use socat as root? If yes, start socat as the same user that starts arduino, and give correct permissions for this user to whatever other devices socat uses on top of the PTY. If you don't know how to do that, please edit your question with the exact commandline you used for socat.

2) If (1) doesn't work, have a look at the permission of the PTY created by socat, and change the permissions so the user starting arduino has access.