Re: Garmin GPS on USB port

On Thu, Aug 30, 2007 at 10:26:12AM +0000, Douglas A. Tutty wrote:
On Wed, Aug 29, 2007 at 09:57:45PM -0400, Bernard wrote:
On 8/29/07, Douglas A. Tutty <dtutty@xxxxxxxxxxxxx> wrote:
On Wed, Aug 29, 2007 at 09:16:14PM -0400, Bernard wrote:

problem. Eventually, I will have to plug my GPS on a laptop with
USB port only so I have to find a solution. According to a few
things read on the web I have to load the garmin_gps module. I
did it with succes but the documentation found said to use
/dev/ttyUSB? which device I don't have. Maybe I still have a few
things to understand about the USB devices and udev!

Your documentation may not have taken udev into account. Assuming
that you're using standard Etch, run tail -f /var/log/syslog and
then plug in the gps and see if a message appears that tells you
what device it connects to. I've never hooked my GPS up to the
computer. However, for comparison, my Palm comes up as something
like /dev/pilot.

Ok, here is what I got from syslog:

Aug 29 21:53:15 zherc kernel: usb 1-2: USB disconnect, address 3 Aug
29 21:53:28 zherc kernel: usb 1-2: new full speed USB device using
uhci_hcd and address 4 Aug 29 21:53:28 zherc kernel: usb 1-2:
configuration #1 chosen from 1 choice

Do you seen something useful from this?


There were no further messages?

Does the Debian gpsman or gpsd package documents have anything to suggest?
I note that many of the packages found with aptitude search ~dgarmin
mention attaching a GPS via serial port however gpsd says serial or USB.
Perhaps the documentation in that package will give you some pointers.


Depending on the package he may have to modprobe garmin_gps to get
/dev/ttyUSB0
Other programs can access directly the gps through libusb (gpsbabel for
instance).

http://www.gpsbabel.org/os/Linux_Hotplug.html

Philippe


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