Re: usbcore / Linux 2.6.+ / USB IO Board 04d8:000a

2012-10-09 Thread Florian Wöhrl
. Will try to find out further details or give up and buy another GPIO board... Thanks a lot for your responses! Best regards, Florian On Sun, 9 Sep 2012, Florian Wöhrl wrote: Clearly the device doesn't like your RPi system. There's some sort of hardware-level incompatibility; it may even

Re: usbcore / Linux 2.6.+ / USB IO Board 04d8:000a

2012-09-10 Thread Florian Wöhrl
Am 10.09.2012 04:55, schrieb Oliver Neukum: On Monday 10 September 2012 10:51:32 Bjørn Mork wrote: Oliver Neukum oneu...@suse.de writes: On Monday 10 September 2012 10:11:15 Bjørn Mork wrote: And I do not think ftdi_sio should be loaded for this device since it is really not an FTDI device

Re: usbcore / Linux 2.6.+ / USB IO Board 04d8:000a

2012-09-09 Thread Florian Wöhrl
Hi Alan, Can you provide a comparable usbmon trace from a kernel where the device works? Also, to make sure that nothing important has been omitted, please resend the earlier trace without any grep filtering. And do the same with the new trace. Now I have a trace from my Ubuntu 10.04 system

Re: usbcore / Linux 2.6.+ / USB IO Board 04d8:000a

2012-09-09 Thread Florian Wöhrl
Hi Alan, Am 09.09.2012 15:00, schrieb Alan Stern: But it now still works when afterwards plugging it into the 12.04 desktop. Any clue? I'm not that into driver development... Is this a firmware thing? The device is powered by USB only. Why does it work on Ubuntu 12.04 after plugging it in once

Re: usbcore / Linux 2.6.+ / USB IO Board 04d8:000a

2012-09-09 Thread Florian Wöhrl
Hi Alan, I don't think, that it was the RPi - because now it even works on the RPi. Furthermore I had the problems before RPi with Ubuntu 12.04 on the same desktop machine I used to run with 10.04. In order words, the device now works with the same computer and OS that it used to fail with

usbcore / Linux 2.6.+ / USB IO Board 04d8:000a

2012-09-08 Thread Florian Wöhrl
Hello everybody, I am trying to get a USB IO Board running with Debian on Raspberry PI and other 2.6.+ distributions (e.g. Ubuntu 12.04). The board used to run fine with kernel 2.4.+ (e.g. Ubuntu 10.04) - a Device /dev/ttyACM0 was created and usable. But with newer kernels no device is

Re: usbcore / Linux 2.6.+ / USB IO Board 04d8:000a

2012-09-08 Thread Florian Wöhrl
Hi Alan, first I have to apologize - it's not kernel version 2.6.+ that's the begin of the problems, it's 3.2.+ - included in Debian wheezy and Ubuntu 12.04. Up to kernel 2.6. it is currently working correct. I first thought it might be the change in the driver - because in the past

Re: usbcore / Linux 2.6.+ / USB IO Board 04d8:000a

2012-09-08 Thread Florian Wöhrl
Hi Alan, Oliver, Am 08.09.2012 18:04, schrieb Alan Stern: If you're certain that the problem is associated with the kernel version, you could try using git bisect to pinpoint exactly what change to the kernel caused the problem to start. Never used git bisect before, but will give it a try.