Re: USBDUX bulk transfer no longer working in 2.6.35, 2.6.37

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



Hi Greg,

I cannot reproduce the error on any computer with 2.6.37. I've tried 32 bits / 64 bits. Single and SMP and the duxboard works fine. So, I guess that Jan-Matthias had just really bad luck with his hardware.


/Bernd

Greg KH wrote:
On Thu, Jan 20, 2011 at 11:10:21PM +0000, Bernd Porr wrote:
Hi guys,

I'm the maintainer of the USBDUX data acquisition device. The driver
has been more or less unchanged for the last 2 years.

Is this the one in the drivers/staging/comedi/ directory?  Or somewhere
else?

However, with
the recent kernel versions the bulk transfers have become erratic on
one of my computers. However, other users report much stranger
behaviour such as HID keyboard/mouse stops working when plugged in
and other stuff, see below.

Now my question is: what has changed in recent kernel versions which
might cause this quite severe problem. In earlier versions
everything worked fine. In fact for over 5 years.

I don't know, we need more detailed information.

/Bernd
P.S.: the driver selects alternate setting 3 which is a certain
enpoint configuration on the FX2 cypress. This won't succeed. Seems
so that in general bulk transfers won't go through.
-------------------------------------------------------------------

usb 2-2: selecting invalid altsetting 3
usbdux 2-2:1.0: comedi_: usbdux0: could not set alternate setting 3 in high
speed.

Odd.  Did that work before?  Are you sure you have a altsetting 3 to
change to?

Can you post more detailed log files showing the failure?

thanks,

greg k-h

--
www:    http://www.berndporr.me.uk/
        http://www.linux-usb-daq.co.uk/
	http://www.imdb.com/name/nm3293421/
Mobile: +44 (0)7840 340069
Work:   +44 (0)141 330 5237
        University of Glasgow
        School of Engineering
        72 Oakfield Avenue (Rankine Building for deliveries)
        Glasgow, G12 8LT
--
To unsubscribe from this list: send the line "unsubscribe linux-usb" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html


[Index of Archives]     [Linux Media]     [Linux Input]     [Linux Audio Users]     [Yosemite News]     [Linux Kernel]     [Linux SCSI]     [Old Linux USB Devel Archive]

  Powered by Linux