lutz@marvin:~$ gpsd -D 5 -n -N /dev/gps
gpsd: launching (Version 2.34)
gpsd: listening on port gpsd
gpsd: Unable to start ntpshm.  gpsd must run as root.
gpsd: successfully connected to the DBUS system bus
gpsd: running with effective group ID 1001
gpsd: running with effective user ID 1001
gpsd: opening GPS data source at '/dev/gps'
gpsd: speed 9600, 8N1
gpsd: Set garmin_gps driver mode = 0
gpsd: PrintUSBPacket()
gpsd: Private, Set Mode: 1
gpsd: SendPacket(), wrote 16 bytes
gpsd: probe found Garmin USB binary driver...
gpsd: gpsd_activate(1): opened GPS (5)
gpsd: Get Garmin Product Data
gpsd: SendPacket(), writing 6 bytes: 10fe00021003
gpsd: PrintSERPacket(, 0xfe, 00, )
gpsd: Appl, Product Data req
gpsd: PrintSERPacket(, 0xfe, 00, ) = 00
gpsd: SendPacket(), wrote 6 bytes
gpsd: Set Garmin to send reports every 1 second
gpsd: SendPacket(), writing 8 bytes: 100a023100c31003
gpsd: PrintSERPacket(, 0xa, 0x2, )
gpsd: Appl, Command Data: Start Xmit PVT data
gpsd: PrintSERPacket(, 0xa, 0x2, ) = 00
gpsd: SendPacket(), wrote 8 bytes
--> Ctrl-C
gpsd: garmin_close()
gpsd: closing GPS=/dev/gps (5)
gpsd: Received terminating signal 2. Exiting...