On Thu, Sep 08, 2011 at 06:33:29PM +0200, Bart Hartgers wrote: > Hi Ben, ael, > > I am reading this on my phone and will not be able to look into this > properly (ie access a computer) before next week. > > In the mean time: strace logs would be very useful. And maybe the problen > has to do with the new driver doing real handshaking while the old one > effectively ignored hs signals iirc.
That sounds very likely from what I can see. I don't think that gpsbabel is doing anything beyond opening the file & trying to read it. /dev/ttyUSB* is just treated as any other file, I suspect. In passing, the serial port on the garmin satnav has a 4 wire connection. So any hardwired handshaking must be minimal. The garmin cable just takes those to the usual 9-pin "RS232" serial plug - to which the USB converter connects. I might try statserial and strace that as well if I have time. Actually I seem to remember that statserial would only read "serial" files, and could not connect to /dev/ttyUSB*, so that probably won't work. As earlier in the report, I am away from home, using a small netbook with limited connectivity, so compiling and testing with a stock kernal isn't very practical for the moment. Thanks for all the help so far to both of you, ael -- To UNSUBSCRIBE, email to debian-kernel-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/20110909083306.GA3336@elf.conquest
