[Thumbgps-devel] USB handshake signals and Linux

[Patrick Maupin]

On Thu, Mar 15, 2012 at 2:36 PM, Eric S. Raymond <esr at thyrsus.com> wrote:
> Might be difficult to get the vendors to implement [custom VID/PID]
> it if they did - their focus on cost-cutting is pretty brutal, and leads
> to chop-shop engineering with results you've already seen in the Xucai
> dongle.

May not matter.  In many cases the VID/PID are reprogrammable.  So the
user could be told to reprogram his dongle to this VID/PID, and GPSD
could pick it up more reliably, and other programs might more reliably
leave it alone.