Re: [gpsd-dev] Another release seems called for

[Fulup Le Foll]

Jeroen

If you plug/unplug an active USB device on Linux. Usually the device 
change name and move for example from ttyUSB0 to ttyUSB1.
I commented this Linux feature long time ago on 
http://lists.berlios.de/pipermail/gpsd-users/2009-June/003785.html

Might also be useful to highlight that by default last versions of 
Ubuntu does not grant "dialout" group to basic users, when acces to 
/dev/tty* require access to "dialout" group.

Fulup


Le 23/07/2013 19:42, Jeroen Massar a écrit :
> On 2013-07-23 19:37 , Gary E. Miller wrote:
> > Yo Eric!
> >
> > On Tue, 23 Jul 2013 08:24:01 -0400 (EDT)
> > address@hidden  (Eric S. Raymond) wrote:
> >
> > > I'd like to ship a bugfix release next week.
> > Maybe another bug to look at before a release:
> >
> > If I unplug a USB GPS, then plug it back in, then gpsd can no longer
> > access the device:
> >
> > gpsd:INFO: reconnection attempt on device 0
> > gpsd:INFO: opening GPS data source type 3 at '/dev/ttyUSB0'
> > gpsd:ERROR: device open failed: Permission denied - retrying read-only
> > gpsd:ERROR: read-only device open failed: Permission denied
> > gpsd:ERROR: /dev/ttyUSB0: device activation failed.
> >
> > I assume because priviledges dropped.
> Depending on platform, if on Linux you can teach udev to set the
> permissions so that gpsd can access it.
>
> Greets,
>   Jeroen


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