Hi folks, I have a GPS-receiver that plugs into a USB-port of my Intel P4-based system. I'm using SuSE 7.2 and upgraded the Kernel to 2.4.13. I have also included USB-support and USB Serial Converter-support as well as Generic Serial support, if I remember the options correctly. The usbview-program shows one "unidentified device", when I plug the GPS-receiver into the USB-port, so I guess that physicall the system detects the gadget.
I was hoping that the "Generic Serial"-driver under the USB-stuff would work and I could read the NMEA-transmission from the GPS-receiver just as I had done before from a serial GSP-receiver. But it doesn't, at least my code (that worked with serial-GPS-receiver) doesn't read anything from ttyUSB0. I guess that conceptually the GPS-receiver would just push data into the USB-bus in an analugous fashion that it would into a serial port, so that's why I imagined that the generic serial-approach in Linux would work. I did try the 'insmod usbserial vendor=0x067b product=0x2303' and I got it started and I doing 'cat /dev/ttyUSB0' did leave the command 'hanging' as if there was something on the port. I guess that only means that some driver (usbserial in this case) has registered itself into that port, but that doesn't mean that there really is any physical device detected... Not sure, I haven't reall looked into any drivers before. I also tried to find some USB-debugger for Linux in hopes of debugging the GPS-receivers transmission, but they all seem to work on windoze...:( I think that I could continue exploring the GPS-receivers transmission by hacking the usbserial.c-file, maybe I would be able to derive a driver to the GPS-receiver once I know what kind of stuff it is sending. My impression is that the GPS-receiver should sent it's data like a "serial device", however, I have pretty much zero docs on the USB-part of the GPS-receiver. Any ideas how to proceed with my quest? USB-sniffer??? Hack the usbserial.c...??? What function would be the place to start with usbserial.c, I guess I would like to first look at if it is actually receiving anything from the GPS-receiver? I guess that ultimately it would be nice to produce a new driver under the USB-miscellaneous category in Linux kernel that would be for this particular GPS-receiver. - Petri PS. Yeah, there were drivers for windoze included with the GPS-receiver...:( <><><><><><><><> Petri J. Riipinen [EMAIL PROTECTED] <><><><><><><><> _______________________________________________ [EMAIL PROTECTED] To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-users
