Re: Bug#594554: linux-image-2.6.35-trunk-amd64: pl2303 module needs to be first unloaded to make my GPS data logger work

[Frédéric Boiteux <fboiteux@calistel.com>]

Le Fri, 27 Aug 2010 08:59:40 +0200,
Julien Valroff <julien@kirya.net> a écrit :

> when I plug this GPS into the usb port, the module is loaded
> automatically, but utility software such as gpsbabel and josm (just
> examples) cannot communicate with the device.
> 
> I first need to unloaded the pl2303 module by hand, switch off the
> GPS, and switch it on again. The module is ten automatically loaded
> again and everything works as expected.

   Hello Julien,

  I had a problem similar to yours with a BGT-31 : when let it going in
'navilink' mode (to download traces on a computer), I had problems
contacting it (it worked from time to time).
  I finally discovered that I had installed the gpsd package, and when
plugging my GPS, udev not only loaded the pl2003 module, but also
launched 'gpsd' service, which locked access to the device !
  Perhaps you have the same problem ? I had to kill gpsd before using
navilink tool.

     Hope it helps,
        Fred.