Thread: [libdc1394-devel] Problem with CVS
Capture and control API for IIDC compliant cameras
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From: Florian S. <flo...@gm...> - 2002-04-18 13:31:08
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Hallo ! I'm very new to linux so some questions might be very silly. What have i got to do, to get the neweset CVS version that uses this multpile port thing and has a new name for the video1394 device to run... Do I need the newest Versions from linux1394 ? Do I need a specific Kernel ? Change name of the device ? I got no clue. But i want to work with the newest version, because I hope, that some errors will vanish... I still have got the following Problems. DMA and Format7 brings back only junk pictures. I looked at the Source Code, but i didn't find the error. Maybe its because the Format7 from our BaslerCamera is no Mono but a Yuv422 Format. So there is twice the memorysize needed than with Mono... I would appreciate any help you can give. Without it, our robot Marvin won't see the world with two eyes and full Pixelnumber.. :) Cu, Floh |
From: Dan D. <da...@de...> - 2002-04-19 03:36:37
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On Thu, 2002-04-18 at 09:29, Florian Schiessl wrote: > Hallo ! > I'm very new to linux so some questions might be very silly. > What have i got to do, to get the neweset CVS version that uses this > multpile port thing and has a new name for the video1394 device to > run... > Do I need the newest Versions from linux1394 ? Well, you need something newer than October in the linux1394 CVS (now Subversion--see linux1394.sf.net) and what appears in kernel 2.4.18. The latest 2.4.19-pre includes an updated ieee1394 finally! Also, there are 2.5.x kernels that include a new ieee1394, but I have not been keeping track of them. > Do I need a specific Kernel ? no > Change name of the device ? Yes, make video1394 a directory. Make a node named "0" in it for the first adapter/port, and continue making sequentially numbered nodes for each additional adapter. Use char-major-171 instead of the old 172, and start the minor number at 16: % mknod -m 666 /dev/video1394/0 c 171 16 % mknod -m 666 /dev/video1394/1 c 171 17 If you use devfs, all of the above is automatic, but you will need a devfsd configuration to alter security permissions. > I got no clue. > But i want to work with the newest version, because I hope, that some > errors will vanish... > I still have got the following Problems. DMA and Format7 brings back > only junk pictures. I looked at the Source Code, but i didn't find the > error. Maybe its because the Format7 from our BaslerCamera is no Mono > but a Yuv422 Format. So there is twice the memorysize needed than with > Mono... Format7 is much less tested and less known stable. I do not have a format 7 camera personally. |