I have 3 USB (UVC) cameras connected to my TX2 (Ubuntu 16.04) and it works well but sometimes I get a problem with that one of them hangs on open.
From the command line (logged in over SSH) I can easily see in the log that the open hangs, if I at this point press CTRL-c the hang goes away (the device is opened) and the executable exits.
What baffles me is that it is on
//C++ open("/dev/video0", O_RDWR);
the first action I need to do to use the device. Not later if I would set something weird by mistake.
The CTRL-c indicates to me that there is something holding the open command that gets interrupted because of this keypress.
I have tried with opening the cameras one after another on a single thread and running them on separate threads but still the same problem.
Any insights into how to avoid this is appreciated?