USB GPS by DeLorme

[Roger Oberholtzer]

On Tue, 27 Jan 2004 22:25:59 -0500
Matthew Carpenter <matt at eisgr.com> wrote:

> Roger Oberholtzer wrote:
> 
> >So, is the USB GPS a serial-over-usb device after all?
> >
> >We use high-end trimble GPS systems and would love to eliminate the
> >serial stuff. We use them in asynchronous mode (we get a signal when data
> >arrives). I have not had a chance to see if the USB interface allows
> >this. I would imagine it should. That is why I have a serial->USB cable
> >sitting around. But it is low down on the list of things to check.
> >
> >
> >  
> >
> Never got it to work, and gave it back to my boss.  It was apparently 
> being categorized as an HID device.  When accessing /dev/usb/hiddev0 
> gpsd acted like it saw the GPS but I never got a satellite to connect. 
>  The red light flashed at first then quit.

There is a user-level usb library that allows you to access usb devices that
do not fit the mold. I once used it with a program to access a Nikon USB
camera that does not look like a hard disk. It worked great. I would imagine
that getting it to work with gpsd should be straight forward, as all gpsd
does is read NMEA strings from the device and repackage them for consumption
over the ethernet. Check out:

	http://libusb.sourceforge.net/


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