On Fri, Sep 16, 2011 at 01:17:51PM +0200, Bart Hartgers wrote: > 2011/9/13 ael <law_ence....@ntlworld.com>: > > On Tue, Sep 13, 2011 at 08:56:54PM +0200, Bart Hartgers wrote: > >> >> > [Previous messages are logged at <http://bugs.debian.org/640391>. > > > >> truncated the termios data. Could you please rerun the strace with the > >> '-v' option? > > > > Ok. Attached. > > > Hi ael, > > As far as I can tell from the logs, gpsbabel does not enable > handshaking. Unfortunately I do not another idea of what might be the > problem. Another thing to try would be to load the ark3116 module with > the debug=1 flag. Maybe something will appear in the kernel log/dmesg > that gives a clue to what is going on. > > I'll see if I can find my ark3116 and hook it up with a null modem to > try to reproduce the problem myself. But it will take a while before I > can spend some time on that. >
I would try that now but it is a bit late and I am too tired to get the gps unit out and connect it tonight. But note that the dmesgs appear when the module is loaded before gpsbabel is run. I thought that I looked at the modinfo for ark3116 for a debug parameter: I must have missed it. But what I can do now is connect the ark3116 without the gps unit attached. Without debug, I see: Sep 16 20:20:29 elf kernel: [ 886.628117] USB Serial support registered for ark3116 Sep 16 20:20:29 elf kernel: [ 886.628230] ark3116 2-1:1.0: ark3116 converter detected Sep 16 20:20:29 elf kernel: [ 886.639145] usb 2-1: ark3116 using RS232 mode Sep 16 20:20:29 elf kernel: [ 886.639675] usb 2-1: ark3116 converter now attached to ttyUSB2 Sep 16 20:20:29 elf kernel: [ 886.639801] usbcore: registered new interface driver ark3116 Sep 16 20:20:29 elf kernel: [ 886.639818] ark3116:v0.6:USB ARK3116 serial/IrDA driver Sep 16 20:20:29 elf kernel: [ 886.721160] usb 2-1: ark3116: don't know how to do software flow control Sep 16 20:20:29 elf kernel: [ 886.734143] usb 2-1: ark3116: don't know how to do software flow control Sep 16 20:20:29 elf kernel: [ 886.742143] usb 2-1: ark3116: don't know how to do software flow control Sep 16 20:20:29 elf kernel: [ 886.850147] usb 2-1: ark3116: don't know how to do software flow control -------------------------------------------------------------------------------- So that is nothing to do with the gps or gpsbabel. # rmmod ark3116; modprobe ark3116 debug=1 Now the tail of /var/log/messages has:- ------------------------------------------------------------------------------ Sep 16 20:22:41 elf kernel: [ 1018.338935] usbcore: deregistering interface driver ark3116 Sep 16 20:22:41 elf kernel: [ 1018.339340] ark3116 ttyUSB2: ark3116 converter now disconnected from ttyUSB2 Sep 16 20:22:41 elf kernel: [ 1018.339442] ark3116 2-1:1.0: device disconnected Sep 16 20:22:41 elf kernel: [ 1018.339542] USB Serial deregistering driver ark3116 Sep 16 20:22:41 elf kernel: [ 1018.361551] USB Serial support registered for ark3116 Sep 16 20:22:41 elf kernel: [ 1018.362726] ark3116 2-1:1.0: ark3116 converter detected Sep 16 20:22:41 elf kernel: [ 1018.373754] usb 2-1: ark3116 using RS232 mode Sep 16 20:22:41 elf kernel: [ 1018.374179] usb 2-1: ark3116 converter now attached to ttyUSB2 Sep 16 20:22:41 elf kernel: [ 1018.374250] usbcore: registered new interface driver ark3116 Sep 16 20:22:41 elf kernel: [ 1018.374259] ark3116:v0.6:USB ARK3116 serial/IrDA driver ------------------------------------------------------------------------------ So the "don't know how to do ...." messages have gone. Maybe I need to do a hot replug with debug on, or maybe the debug switch has changed a race or some such. I just unplugged and replugged (I assume ark3116 stayed loaded with debug=1 set) and just got: ---------------------------------------------------------------------- Sep 16 20:29:38 elf kernel: [ 1435.592212] usb 2-1: USB disconnect, device number 2 Sep 16 20:29:38 elf kernel: [ 1435.592788] ark3116 ttyUSB2: ark3116 converter now disconnected from ttyUSB2 Sep 16 20:29:38 elf kernel: [ 1435.592888] ark3116 2-1:1.0: device disconnected Sep 16 20:29:44 elf kernel: [ 1441.260149] usb 2-1: new full speed USB device number 3 using uhci_hcd Sep 16 20:29:44 elf kernel: [ 1441.420141] usb 2-1: New USB device found, idVendor=6547, idProduct=0232 Sep 16 20:29:44 elf kernel: [ 1441.420163] usb 2-1: New USB device strings: Mfr=1, Product=3, SerialNumber=0 Sep 16 20:29:44 elf kernel: [ 1441.420177] usb 2-1: Product: USB-UART Controller Sep 16 20:29:44 elf kernel: [ 1441.420188] usb 2-1: Manufacturer: ArkMicroChips Sep 16 20:29:44 elf kernel: [ 1441.422581] ark3116 2-1:1.0: ark3116 converter detected Sep 16 20:29:44 elf mtp-probe: checking bus 2, device 3: "/sys/devices/pci0000:00/0000:00:1d.0/usb2/2-1" Sep 16 20:29:44 elf kernel: [ 1441.437135] usb 2-1: ark3116 using RS232 mode Sep 16 20:29:44 elf kernel: [ 1441.437541] usb 2-1: ark3116 converter now attached to ttyUSB2 Sep 16 20:29:44 elf mtp-probe: bus: 2, device: 3 was not an MTP device -------------------------------------------------------------------------------- Perhaps this is already a clue. But I will try to do a more thorough test, perhaps tomorrow. (Just accidentally sawed through a water pipe and need to get working with blowtorch and solder tommorrow, so that will have to be a priority!) Thanks for all the help. Hope to report further soon 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/20110916193309.GA2841@elf.conquest
