serial device

[David Eduardo Gomez Noguera <davidgn@example.com>]

I have a problem with a serial device.
I run a programthat opens it, but it has crashed a few times and then the device appears to be left open, because the next time i run that program it freezes just before opening it.

how can i fix it?
or what can i do to make that dev reusable without rebooting?

thank you.

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