I'll test! ;) I need to figure out how to use devfs anyway (sideproject).
Multiple cameras would be good.=20
On 30 Jan 2002, Damien Douxchamps wrote:
> Hi Dan,
> It looks nice to me. This break compatibility with previous code but I
> don't mind since it adds a functionality that was badly missing.
> I will change the configure scripts to require latest libdc so people
> will know they have to upgrade.=20
> Go ahead and commit! ;)
> On Wed, 2002-01-30 at 06:56, Dan Dennedy wrote:
> > Recent (3 months ago) changes to video1394 require an updated
> > kernel-video1394.h in the libdc1394 package. This change does appear in
> > kernel 2.4.17 ieee1394. Also, since video1394 now supports devfs, the
> > device node for devfs users changes to /dev/video1394/0 (0 =3D first ho=
> > adapter). Therefore, I made changes to both libdc1394 and Coriander to
> > accomodate these changes in video1394.=20
> > For libdc1394, besides the updated kernel-video1394.h, I added a field
> > to the dc1394_cameracapture struct called "dma_device_file." During
> > capture initialization, if the application has not initialized this
> > field, it defaults to "/dev/video1394" for most backwards compatibility
> > with non-devfs users.=20
> > Next, an application like Coriander should let the user specify their
> > device file. I have modified Coriander preferences to do that.
> > The result is a set of dependent changes to video1394, libdc1394, and
> > Coriander, with essentially no going back! Users and developers using
> > this stuff will have to upgrade the kernel or ieee1394 to get the new
> > video1394 to use with the new libdc1394 to use with the next release of
> > Coriander.
> > I have not YET committed anything to libdc1394 or Coriander CVS. Please
> > raise any objections now before I commit.
> > +-DRD-+
> > P.S. The side benefit is that there is now a clean way to support
> > mutliple Coriander processes accessing multiple camera on multiple host
> > adapters, which is something some users have been looking for. Also,
> > this confirms that all of this stuff is working with changes to
> > video1394 including use of devfs.
> > P.P.S. devfs users need to configure devfsd to get usable permissions o=
> > their device nodes.
> > _______________________________________________
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> > libdc1394-devel@...
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> _ Damien Douxchamps
> (=B0- PhD Student / Research Assistant
> //\ Image Processing Group, Telecom Laboratory, UCL, Belgium
> V_/_ http://www.tele.ucl.ac.be/MEMBERS/Douxchamps_Damien_e.html
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