Very interesting, I have about a half dozen of the GPS18's in the serial version and they all work the way as I described. I can't believe they would lock down only the USB versions to use a proprietary protocol.
Did you try to use sirfmon on a pc to see if it would put it in NMEA mode? It seems like Garmin has a winders application that's free that will also switch the device to NMEA output. On Thu, 2008-05-29 at 14:27 -0700, Geoff Levand wrote: > Hi, > > Mark Kelly wrote: > > You do not need any garmin drivers, as long as the device is set to > > standard NEMA output, you can install picocom and see the stream. > > > > #picocom -b4800 /dev/tts/0 > > > > If it's stuck in binary mode you want see any useful info. > > > > sirfmon is in gpsd utilities and will switch the device back to NMEA > > mode so you can see the stream, but sirfmon is not in the gpsd package > > for openwrt, you will need to interface with your pc to put it in NMEA mode. > > > > > > On Thu, 2008-05-29 at 13:54 -0700, Geoff Levand wrote: > >> Massimiliano Marcon wrote: > >> > Hello, > >> > > >> > I'm trying to make a usb GPS (Garmin18) work with a linksys wrtsl54gs. > >> > I'm running on it whiterussian 0.9. I installed the packages > >> > kmod-usb-serial and kmod-usb-serial-pl2303, now as soon as I connect it > >> > to the usb port I see it as /dev/usb/tts/0, and dmesg says: > >> > usbserial.c: Generic converter detected > >> > usbserial.c: Generic converter now attached to ttyUSB0 (or usb/tts/0 for > >> > devfs) > >> > > >> > So in theory I should be able to invoke a cat /dev/usb/tts/0 and see > >> > something, instead I don't see anything. If i run gpsd, the daemon which > >> > get data from a gps device I don't get any information as well. > >> > > >> > Any idea about this issue? > >> > >> This is not specific to OpenWRT. You need to use the garmin driver > >> garmin_gps. It emulates a serial device. Look for it using the > >> lsmod command. > >> > >> You need to send the device a command before it will send back data, so > >> a cat will not work. > > Not sure if it is the same device, but I saw this on the garmin site: > > GPS 18 USB — has A-style USB connector, compatible with USB 2.0 and > 1.1 full-speed hosts; can output data in Garmin proprietary format only. > > https://buy.garmin.com/shop/shop.do?cID=158&pID=223 > > -Geoff > > _______________________________________________ > openwrt-devel mailing list > [email protected] > http://lists.openwrt.org/cgi-bin/mailman/listinfo/openwrt-devel
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