On Tue, 2014-02-18 at 12:25 -0500, William Biggs wrote:
> I install chrip for my ham radio but every tip . I try to read the radio
> I get this error on all ports . How do I set the Permission for the
> software for the user I'm using ?
> could not open port /dev/ttyUSB0: [Errno 13] Permission denied:
> '/dev/ttyUSB0
>
Hi, William,
If you unplug a USB device, and quickly plug it back in, the background
software will not have released the earlier use, so it creates a new
virtual device.
Check /dev for other ttyUSB# entries. It happens with other devices as
well. I periodically use a USB connected Arduino. If I plug it back in
too quickly it will go to a new com port. If you unplug your device,
simply wait a few seconds (well, sometimes a minute) before plugging it
back in. The software gurus here might be able to tell us where we can
set the time out to make it a bit quicker for the unplugged device to go
away, or some neat trick to make the device reuse the existing entries.
Regards,
Les H
Regards,
Les H
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