usb_set_configuration failed
If you’ve been trying to transfer a GPX file to your GPS unit from a Linux machine, using GPSBabel, and have seen this message:
$> gpsbabel -r -i gpx -f FOO.gpx -o garmin -F usb:
usb_set_configuration failed, probably
because kernel driver ‘garmin_gps’ is
blocking our access to the USB device.
…then don’t despair. Help is here.