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List: comedi
Subject: Re: USB DUX and recent kernels
From: Peter Gawthrop <p.gawthrop () eng ! gla ! ac ! uk>
Date: 2006-10-23 12:30:25
Message-ID: 20061023.133025.92587134.P.Gawthrop () eng ! gla ! ac ! uk
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Hi Bernd,
As you suggested, I have added boot parameters to menu.lst for my
2.6.15.7-rtai-3.4 kernel. The usbdux is now recognised and the
hotplug script executes - so that was a good idea.
Unfortunately, comedi_test gives the following error (continually)
comedi0: could not transmit dux_command to the usb-device, err=-110
My original plan was to use earler 2.6 versions of the kernel, but
unfortunately these no longer compile - something to do with the
assembler-level code and binutils, I believe. Although there is a
patch to fix this, it does not fix the rtai-patched kernel - hence my
use of recent kernels.
Best wishes,
Peter.
From: Bernd Porr <BerndPorr@f2s.com>
Subject: USB DUX and recent kernels
Date: Sun, 22 Oct 2006 13:01:36 +0100
> this is of general interest here:
> --------------------------------------------------------------------
>
> Hi Bernd,
>
> just to keep you in touch, I have discovered a strange thing. I have
> three 2.6.15 kernels:
>
> 1. The standard Ubuntu kernel
> 2. One I compiled myself using the rtai 3.3 patch
> 3. One I compiled myself using the rtai 3.4 patch
>
> On all of these, I can use usbview to see, for example, my usb mouse
> appearing and dissapearing as I plug it in and out. However, usbdux
> only appears and disappears when using number 2 (with the 3.3 patch)
> -- it appears as unknown device.
>
> Hopefuly, this may provide a clue to the problem.
>
> --------------------------------------------------------------------------
>
> Hi Peter, (copying this to the comedi mailing list)
>
> did a kernel testing party yesterday. ;-) My results are the following:
> 2.6.12.6: works fine
> 2.6.8 debian: works fine
> 2.6.15.7: usbdux works fine but my USB mouse only gets detected after X
> server restart
> 2.6.16.29: no interrupt allocated for the ehci (USB-2.0) controller, so
> usbduxfast was not operational
> 2.6.17 and younger: loads of changes in the header files of the PCMCIA
> stack which break comedi. Don't know why they do it but it's a pain.
> Dave has written a patch for one driver which has to be replicated to
> the other drivers:
> https://bugzilla.comedi.org/cgi-bin/bugzilla/show_bug.cgi?id=238
>
> So, on my machine your ubuntu kernel should work fine. If there's a
> problem with usb it is usually an interrupt problem.
>
> Try "pci=noacpi acpi=noirq" on your machine. It might help.
>
> kernel /boot/bzImage root=/dev/hda2 ro video=vga16:off pci=noacpi
> acpi=noirq
>
> In general I'm not very impressed by the kernel development just now
> because the kernels are not getting better the higher the version
> number. It's more or less an up and down. My personal solution is to
> work either with the debian 2.6.8 kernel or with a carefully selected
> one (2.6.12.6 in my case).
>
> /Bernd
>
> www: http://www.berndporr.me.uk/
> http://www.linux-usb-daq.co.uk/
> Mobile: +44 (0)7840 340069
> Work: +44 (0)141 330 5237
> University of Glasgow
> Department of Electronics & Electrical Engineering
> Room 519, Rankine Building, Oakfield Avenue,
> Glasgow, G12 8LT
>
>
> Peter Gawthrop wrote:
> > Hi Bernd,
> >
> > just to keep you in touch, I have discovered a strange thing. I have
> > three 2.6.15 kernels:
> >
> > 1. The standard Ubuntu kernel
> > 2. One I compiled myself using the rtai 3.3 patch
> > 3. One I compiled myself using the rtai 3.4 patch
> >
> > On all of these, I can use usbview to see, for example, my usb mouse
> > appearing and dissapearing as I plug it in and out. However, usbdux
> > only appears and disappears when using number 2 (with the 3.3 patch)
> > -- it appears as unknown device.
> >
> > Hopefuly, this may provide a clue to the problem.
> >
> > Peter.
> >
> >
> >
> > From: Bernd Porr <B.Porr@elec.gla.ac.uk>
> > Subject: Re: USB DUX
> > Date: Wed, 18 Oct 2006 09:04:45 +0100
> >
> > > Hi Peter,
> > > (
> > > ok. I'll let you know if I've found a bug.
> > >
> > > All the best
> > > /Bernd
> > >
> > > www: http://www.berndporr.me.uk/
> > > http://www.linux-usb-daq.co.uk/
> > > Mobile: +44 (0)7840 340069
> > > Work: +44 (0)141 330 5237
> > > University of Glasgow
> > > Department of Electronics & Electrical Engineering
> > > Room 519, Rankine Building, Oakfield Avenue,
> > > Glasgow, G12 8LT
> > >
> > >
> > > Peter Gawthrop wrote:
> > > > Hi Bernd,
> > > >
> > > > I think you are right, 2.6.17 does not even recognise the
> > > > card. However, I have dropped back to 2.6.15 and the basic tests
> > > > work fine. I'll let you know how things progress.
> > > >
> > > > Best wishes,
> > > >
> > > > Peter.
> > > >
> > > >
> > > > From: Bernd Porr <B.Porr@elec.gla.ac.uk>
> > > > Subject: Re: USB DUX
> > > > Date: Tue, 17 Oct 2006 15:51:21 +0100
> > > >
> > > >
> > > > > I'll look into that at the end of the week and compile a newer \
> > > > > kernel. I mostly run the original debian 2.6.8 kernel. Probablem \
> > > > > is that the linux guys screw up the USB subsystem in every \
> > > > > second version just now. Really quite annoying.
> > > > > /Bernd
> > > > >
> > > > > www: http://www.berndporr.me.uk/
> > > > > http://www.linux-usb-daq.co.uk/
> > > > > Mobile: +44 (0)7840 340069
> > > > > Work: +44 (0)141 330 5237
> > > > > University of Glasgow
> > > > > Department of Electronics & Electrical Engineering
> > > > > Room 519, Rankine Building, Oakfield Avenue,
> > > > > Glasgow, G12 8LT
> > > > >
> > > > >
> > > > > Peter Gawthrop wrote:
> > > > >
> > > > > > Hi Bernd,
> > > > > >
> > > > > > I can't get the new USB-DUX working under my new kernel
> > > > > > (2.6.17.13-rtai-3.4).
> > > > > >
> > > > > > The errors are:
> > > > > >
> > > > > > root@barra:/home/peterg# /etc/hotplug/usb/usbdux
> > > > > > Configure failed!: No such device
> > > > > > Check kernel log for more information
> > > > > > Possible reasons for failure:
> > > > > > Unknown
> > > > > >
> > > > > > root@barra:/home/peterg# dmesg | tail
> > > > > > ....
> > > > > > [17189276.360000] usb 4-3: new high speed USB device using \
> > > > > > ehci_hcd and address 5 [17189359.208000] comedi0: usbdux: \
> > > > > > error: attach failed, no usbdux devs connected to the usb bus. \
> > > > > > [17189359.208000] comedi0: usbdux: detach usb device \
> > > > > > [17189359.208000] comedi?: usbdux: detach without ptr to \
> > > > > > usbduxsub[] root@barra:/home/peterg#
> > > > > >
> > > > > > root@barra:/home/peterg# lsmod | grep usbdux
> > > > > > usbdux 23232 0
> > > > > > comedi 33344 2 usbdux,kcomedilib
> > > > > > usbcore 127104 6 \
> > > > > > usbdux,hci_usb,usbhid,ehci_hcd,uhci_hcd \
> > > > > > root@barra:/home/peterg#
> > > > > >
> > > > > > I assume this is to do with the differences betwen 2.6.15 and \
> > > > > > 2.6.17, but any help would be much appreciated.
> > > > > >
> > > > > > Best wishes,
> > > > > >
> > > > > > Peter.
> > > > > >
> > > > > >
> > > > > > From: Bernd Porr <B.Porr@elec.gla.ac.uk>
> > > > > > Subject: Re: USB DUX
> > > > > > Date: Mon, 09 Oct 2006 19:30:20 +0100
> > > > > >
> > > > > >
> > > > > >
> > > > > > > Hi Peter,
> > > > > > >
> > > > > > > pleasure! great. Thanks for the order.
> > > > > > >
> > > > > > > /Bernd
> > > > > > >
> > > > > > > www: http://www.berndporr.me.uk/
> > > > > > > http://www.linux-usb-daq.co.uk/
> > > > > > > Mobile: +44 (0)7840 340069
> > > > > > > Work: +44 (0)141 330 5237
> > > > > > > University of Glasgow
> > > > > > > Department of Electronics & Electrical Engineering
> > > > > > > Room 519, Rankine Building, Oakfield Avenue,
> > > > > > > Glasgow, G12 8LT
> > > > > > >
> > > > > > >
> > > > > > > Peter Gawthrop wrote:
> > > > > > >
> > > > > > >
> > > > > > > > Hi Bernd,
> > > > > > > >
> > > > > > > > thanks for organising that. Unfortunately, I didn't get \
> > > > > > > > your measage in time so that is why I have not picked it \
> > > > > > > > up.
> > > > > > > > Anyway, I have now gone ahead and ordered one.
> > > > > > > >
> > > > > > > > Thanks again for your help,
> > > > > > > >
> > > > > > > > Peter.
> > > > > > > >
> > > > > > > >
> > > > > > > > From: Bernd Porr <B.Porr@elec.gla.ac.uk>
> > > > > > > > Subject: Re: USB DUX
> > > > > > > > Date: Thu, 05 Oct 2006 11:54:40 +0100
> > > > > > > >
> > > > > > > >
> > > > > > > >
> > > > > > > >
> > > > > > > > > Hi Peter,
> > > > > > > > >
> > > > > > > > > yes. I have. Have one. I give it to Vi Romanes because \
> > > > > > > > > I'll be lecturing this afternoon.
> > > > > > > > >
> > > > > > > > > /Bernd
> > > > > > > > >
> > > > > > > > > www: http://www.berndporr.me.uk/
> > > > > > > > > http://www.linux-usb-daq.co.uk/
> > > > > > > > > Mobile: +44 (0)7840 340069
> > > > > > > > > Work: +44 (0)141 330 5237
> > > > > > > > > University of Glasgow
> > > > > > > > > Department of Electronics & Electrical Engineering
> > > > > > > > > Room 519, Rankine Building, Oakfield Avenue,
> > > > > > > > > Glasgow, G12 8LT
> > > > > > > > >
> > > > > > > > >
> > > > > > > > > Peter Gawthrop wrote:
> > > > > > > > >
> > > > > > > > >
> > > > > > > > >
> > > > > > > > > > Hi Bernd,
> > > > > > > > > >
> > > > > > > > > > thanks. I treid the RTAI-Lab generated targets using \
> > > > > > > > > > the -s (soft) option; they don't crash which is good. \
> > > > > > > > > > Do you have a vesion of USB-DUX with BNC conector for \
> > > > > > > > > > me to try?
> > > > > > > > > > Best wishes
> > > > > > > > > >
> > > > > > > > > > Peter.
> > > > > > > > > >
> > > > > > > > > > From: Bernd Porr <B.Porr@elec.gla.ac.uk>
> > > > > > > > > > Subject: Re: USB DUX
> > > > > > > > > > Date: Mon, 02 Oct 2006 20:40:10 +0100
> > > > > > > > > >
> > > > > > > > > >
> > > > > > > > > >
> > > > > > > > > >
> > > > > > > > > >
> > > > > > > > > > > Hi Peter,
> > > > > > > > > > >
> > > > > > > > > > > usb and realtime hasn't been tested really. I have \
> > > > > > > > > > > never used it. There's been some traffic on the \
> > > > > > > > > > > comedi list about that. Don't know if the usb driver \
> > > > > > > > > > > is buggy in hard realtime. Try soft realtime.
> > > > > > > > > > > /Bernd
> > > > > > > > > > >
> > > > > > > > > > > Peter Gawthrop wrote:
> > > > > > > > > > >
> > > > > > > > > > >
> > > > > > > > > > >
> > > > > > > > > > >
> > > > > > > > > > > > Hi Bernd,
> > > > > > > > > > > >
> > > > > > > > > > > > that is very kind of you. I gave it a try with the \
> > > > > > > > > > > > following results (using Linux 2.6.15 patched with \
> > > > > > > > > > > > RTAI 3.3):
> > > > > > > > > > > > Having loaded the various rtai/comedi modules, I \
> > > > > > > > > > > > sucessfully initialised the card:
> > > > > > > > > > > >
> > > > > > > > > > > > sudo comedi_config -i \
> > > > > > > > > > > > /usr/local/share/usb/usbdux_firmware.hex \
> > > > > > > > > > > > /dev/comedi0 usbdux [ 678.327169] comedi0: usbdux: \
> > > > > > > > > > > > uploading 1471 bytes to addr 0, first byte=2. [ \
> > > > > > > > > > > > 678.330156] comedi0: usbdux: usb-device 0 is \
> > > > > > > > > > > > attached to comedi. [ 678.330323] comedi0: \
> > > > > > > > > > > > attached to usbdux.
> > > > > > > > > > > > I then ran comedi test - this stops before \
> > > > > > > > > > > > terminating with the following output:
> > > > > > > > > > > >
> > > > > > > > > > > > peterg@barra:~$ sudo comedi_test
> > > > > > > > > > > > I: Comedi version: 0.7.73
> > > > > > > > > > > > I: Comedilib version: unknown =)
> > > > > > > > > > > > I: driver name: usbdux
> > > > > > > > > > > > I: device name: usbdux
> > > > > > > > > > > > I:
> > > > > > > > > > > > I: subdevice 0
> > > > > > > > > > > > I: testing info...
> > > > > > > > > > > > rev 1
> > > > > > > > > > > > I: subdevice type: 1 (analog input)
> > > > > > > > > > > > number of channels: 8
> > > > > > > > > > > > max data value: 4095
> > > > > > > > > > > > ranges:
> > > > > > > > > > > > all chans: [-4.096,4.096] [-2.048,2.048] [0,4.096] \
> > > > > > > > > > > > [0,2.048]
> > > > > > > > > > > > I: testing insn_read...
> > > > > > > > > > > > rev 1
> > > > > > > > > > > > comedi_do_insn returned 1, good
> > > > > > > > > > > > I: testing insn_read_0...
> > > > > > > > > > > > comedi_do_insn returned 0, good
> > > > > > > > > > > > I: testing insn_read_time...
> > > > > > > > > > > > rev 1
> > > > > > > > > > > > comedi_do_insn: 3
> > > > > > > > > > > > read time: 1519 us
> > > > > > > > > > > > I: testing cmd_no_cmd...
> > > > > > > > > > > > not applicable
> > > > > > > > > > > > I: testing cmd_probe_src_mask...
> > > > > > > > > > > > rev 1
> > > > > > > > > > > > command source mask:
> > > > > > > > > > > > start: now|int
> > > > > > > > > > > > scan_begin: timer
> > > > > > > > > > > > convert: now
> > > > > > > > > > > > scan_end: count
> > > > > > > > > > > > stop: none|count
> > > > > > > > > > > > I: testing cmd_probe_fast_1chan...
> > > > > > > > > > > > command fast 1chan:
> > > > > > > > > > > > start: now 0
> > > > > > > > > > > > scan_begin: timer 1000000
> > > > > > > > > > > > convert: now 0
> > > > > > > > > > > > scan_end: count 1
> > > > > > > > > > > > stop: count 2
> > > > > > > > > > > > I: testing cmd_read_fast_1chan...
> > > > > > > > > > > >
> > > > > > > > > > > > I used ^c to kill at this point
> > > > > > > > > > > >
> > > > > > > > > > > > I tried running two different real-time programms \
> > > > > > > > > > > > which work OK with my DAQ-1200 PCMCIA card. They \
> > > > > > > > > > > > both lock up the kernel - I have to switch off and \
> > > > > > > > > > > > reboot. There is no system message (using dmesg).
> > > > > > > > > > > > Any ideas?
> > > > > > > > > > > >
> > > > > > > > > > > > Best wishes,
> > > > > > > > > > > >
> > > > > > > > > > > > Peter.
> > > > > > > > > > > >
> > > > > > > > > > > > From: Bernd Porr <B.Porr@elec.gla.ac.uk>
> > > > > > > > > > > > Subject: Re: USB DUX
> > > > > > > > > > > > Date: Sat, 30 Sep 2006 19:56:02 +0100
> > > > > > > > > > > >
> > > > > > > > > > > >
> > > > > > > > > > > >
> > > > > > > > > > > >
> > > > > > > > > > > >
> > > > > > > > > > > > > Hi Peter,
> > > > > > > > > > > > >
> > > > > > > > > > > > > actually I've just got one back from a student \
> > > > > > > > > > > > > which should be still in my pigeon hole. Just \
> > > > > > > > > > > > > take it from there. I'm in Rome at a conference \
> > > > > > > > > > > > > just now.
> > > > > > > > > > > > > All the best
> > > > > > > > > > > > > /Bernd
> > > > > > > > > > > > >
> > > > > > > > > > > > > Peter Gawthrop wrote:
> > > > > > > > > > > > >
> > > > > > > > > > > > >
> > > > > > > > > > > > >
> > > > > > > > > > > > >
> > > > > > > > > > > > > > Hi Bernd,
> > > > > > > > > > > > > >
> > > > > > > > > > > > > > any chance of borrowing a USB-DUX to try out? \
> > > > > > > > > > > > > > I'm quite keen on buying the BNC version but \
> > > > > > > > > > > > > > would like to give it a spin first. I have an \
> > > > > > > > > > > > > > RTAI/Comedi/RTAI-lab system up and running in \
> > > > > > > > > > > > > > my room at the moment using a PCMCIA DAQ-1200 \
> > > > > > > > > > > > > > card; I have the usbdux module compiled.
> > > > > > > > > > > > > >
> > > > > > > > > > > > > > Best wishes,
> > > > > > > > > > > > > >
> > > > > > > > > > > > > > Peter.
> > > > > > > > > > > > > >
> > > > > > > > > > > > > > \
> > > > > > > > > > > > > > \
> > > > > > > > > > > > > > \
> > > > > > > > > > > > > > \
> > > > > > > > > > > > > > \
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> > > > > > > > > > > > > > \
> > > > > > > > > > > > > > > Professor Peter J Gawthrop | Tel: +44 \
> > > > > > > > > > > > > > > 141 330 4960/2528 |
> > > > > > > > > > > > > > > Senior Research Fellow | Fax: +44 \
> > > > > > > > > > > > > > > 141 330 4343 |
> > > > > > > > > > > > > > > Centre for Systems and Control & | Room: \
> > > > > > > > > > > > > > > James Watt 603 |
> > > > > > > > > > > > > > > Dept. of Mechanical Engineering | Email: \
> > > > > > > > > > > > > > > P.Gawthrop@eng.gla.ac.uk |
> > > > > > > > > > > > > > > University of Glasgow | URL: \
> > > > > > > > > > > > > > > www.mech.gla.ac.uk/~peterg |
> > > > > > > > > > > > > > > GLASGOW G12 8QQ, Scotland, UK | \
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