Hi Greg,
yes. It's in the staging directory and is part of the COMEDI driver
framework. The driver is called usbdux.c. You might remember me when we
did the integration about a year ago.
I've been trying to reproduce the error on my computers reliably but
haven't managed that so far. I'll post more detailed logs later or
Jan-Mattias can you post these logs here or send them to me so that I
can post them.
Re the alternate settings: indeed, the FX2 has a couple of default
alternate settings and I'm using no 3 which is a mix of bulk and iso
endpoints. The nice thing is that the FX2 handles then all the endpoint
0 requests and I don't have to write an endpoint 0 ISR in the firmware
to handle all the endpoint 0 requests.
Anyway. I'll post more detailed logs soon. I'm just compiling the kernel
for an AMD 64 bit. We'll see if that produces the errors more often.
/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
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