garmin forerunner 305

[Bruce Cran]

On Tue, Nov 04, 2008 at 08:28:05AM -0500, Bob McConnell wrote:
> On Behalf Of Bruce Cran
> > On Thu, 4 Sep 2008 20:24:02 +0100
> > Bruce Cran <bruce at cran.org.uk> wrote:
> > 
> >> On Thu, 4 Sep 2008 11:51:33 -0300
> >> "Joey Mingrone" <joey at mingrone.org> wrote:
> >> 
> >> > Has anyone had any success collecting data from a Garmin Forerunner
> >> > 305?
> >> > 
> >> > When I connect the device I see the kernel messages:
> >> > Sep  4 11:39:22 jrm root: Unknown USB device: vendor 0x091e product
> >> > 0x0003 bus uhub1
> >> > Sep  4 11:39:22 jrm kernel: ugen0: <vendor 0x091e product 0x0003,
> >> > class 255/255, rev 1.10/0.01, addr 2> on uhub1
> >> > 
> >> > The documentation for the port astro/GPSMan seems to indicate it
> >> > supports this model, but I haven't had any luck.
> >> > 
> >> > % uname -a
> >> > FreeBSD xxx.xxx 7.0-RELEASE-p1 FreeBSD 7.0-RELEASE-p1 #3: Thu Jun
> 12
> >> > 18:47:50 ADT 2008     root at xxx.xxx:/usr/obj/usr/src/sys/xxx  i386
> >> 
> >> Unfortunately Garmin use their own protocol for communicating between
> >> the GPS and the PC.  Under Linux it's supported by the garmin_gps
> >> driver but there's no equivalent for FreeBSD yet.
> >> 
> > 
> > Sorry, it turns out that's wrong: the gpsbabel developers recommend
> not
> > using garmin_gps because apparently it often doesn't work.  Instead
> > they recommend using gpsbabel's 'garmin' input/output format.  It
> > interfaces to the device using libusb - which, fortunately for us runs
> > on FreeBSD! I've just successfully read back GPS data into a GPX file
> > using gpsbabel on FreeBSD 8-CURRENT and the 'usb2' usb stack. 
> > 
> > I don't know if it'll work with the usb stack that's in shipping
> > version of FreeBSD though, and even with the new stack I had to make a
> > change to libgpsusb.c in gpsbabel to get it working.
> 
> The best way to help fix these problems are:
> 
> A) Submit a patch for the changes you made.
> 
> B) Contact the maintainers and provide them with all of the details,
> what you found, what didn't work, what you modified and the final
> results. If you have traces or data captures, they may want to see them.
> They can't fix problems they don't understand. If they don't have access
> to that hardware, or something similar, they might even ask you to do
> some experiments for them to extend their knowledge. All of that will
> help them improve the quality of future releases.
>

It looks like it may be a bug in libusb20 or the usb2 stack. I've sent
an email to Hans and freebsd-usb@ and will see what they think.  I very
much suspect it's not a bug in gpsbabel itself because
USB_ENDPOINT_ADDRESS_MASK must exist for a reason, and removing the
masking was just a hack to get things working just now.

-- 
Bruce Cran