Re: [Cpia2-development] cpia2 Unexpected error: -71 using qx5view

[Anthony T. <an...@un...>]

Hi Steven,

I'm having some difficulty compiling the cpia2 driver from source, for example:
  In function 'cpia2_open': 
  cpia2_v4l.c:280: warning: implicit declaration of function 'video_devdata'

It looks like something is missing. I've attached the results of make.

Cheers,
Anthony

On Wed, 04 Apr 2007 09:22:26 -0700, "Steven L. MILLER" <ste...@st...> wrote:

> Anthony Tekatch wrote:
> > I'm trying to get the Digital Blue QX5 Microscope working with qx5view.
> > 
> > The lights cannot be controlled. When I press a button to control the
> > lights I get this message in /var/log/messages:
> >   cpia2: Control message failed, err val = -71 
> > 
> > Also, the video device /dev/video0 is removed and then qx5view no longer
> > shows active video, then /dev/video1 gets created.
> > 
> > I am using the cpia2 module that comes with the Debian compiled kernel:
> >  2.6.18-4-686 #1 SMP Mon Mar 26 17:17:36 UTC 2007 i686 GNU/Linux
> > 
> > I am using the qx5view from the CVS with most files dated May 19 2005 and
> > frontend.c at Oct 5 2005.
> > 
> > Is there any testing I can do to narrow down the problem?
> > 
> > Cheers,
> > Anthony
> 
> Unfortunately, I don't have a microscope, and don't run Debian, so I'm 
> not sure what the problem could be. A -71 is a protocol error, so there 
> may be differences in what that version of the driver expects and what 
> qx5view is sending. I can only think of two approaches. One is to get 
> the source from the Debian module and take a look at the code to figure 
> out what is going on (search for the message text and see what it it is 
> trying to do). The other is to grab the driver source from sourceforge 
> and try to compile and use it. As far as I know, the versions on 
> sourceforge worked together (qx5view was written by a different 
> contributor, and I've never had a microscope to test it).
> 
> Hope this helps,
> 
> Steve
> 
> -- 
> Steve Miller
> Staff Software Engineer
> STMicroelectronics
> North American Mobile Platforms Applications Lab
> phone (602) 485-2014
> 



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