Hi, ogre5000 wrote: > Hi Németh. Thanks for sticking to my prob! > > It always happens... The steps are a bit complicated... I installed > Zoneminder (latest release on zoneminder.com), which needs quite a few > additional packages to my standard distro (openSUSE 11.1) to work. I > then added a new Monitor with the source "/dev/video1" and resolution > 640*480 (also tried different ones). Then, make it "Active" and click on > it, and it should display the video source. But it just displays a black > screen and the log files (in /tmp/) report errors. What I mailed you is > dmesg output.
I couldn't really find a simple testcase which triggers this problem, but I analysed the source code and found that the function prototype "v4l2_kioctl" changed between Linux kernel 2.6.27 and 2.6.28: the inode parameter was removed. Last time when I updated the em28xx-new I forget this fact. I just sent a patch titled "[PATCH] remove inode parameter of typedef v4l2_kioctl as of 2.6.28". Could you please apply and test the new version of em28xx-new driver? > I actually searched the internet for xawtv and found out, that "webcam" > is part of xawtv (I have xawtv installed). So I guess there is no other > way to test the webcam with xawtv? > *strace webcam* does give me the output I uploaded here: > http://www.file-upload.net/download-1398622/strace_webcam.txt.html > It doesn't say much to me ... :( The end of the log looks quite interesting: > write(2, "video4linux webcam v1.5 - (c) 19"..., 51video4linux webcam v1.5 - > (c) 1998-2002 Gerd Knorr > ) = 51 > write(2, "grabber config:\n size 360x576 ["..., 65grabber config: > size 360x576 [16 bit YUV 4:2:2 (packed, YUYV)] > ) = 65 > write(2, " input (null), norm (null), jpe"..., 46 input (null), norm > (null), jpeg quality 100 Here we can see that "(null)" is written to the output instead of a readable input and norm parameter. This usually signals that there might be some return value check missing in the code. > ) = 46 > write(2, " rotate=0, top=0, left=0, botto"..., 49 rotate=0, top=0, left=0, > bottom=480, right=640 > ) = 49 > write(2, "write config [local]:\n local tr"..., 81write config [local]: > local transfer /root/uploading.jpeg => /root/webcam.jpeg > ) = 81 > mmap2(NULL, 417792, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = > 0xb7d88000 > read(3, > "\20\200\20\200\20\200\20\200\20\200\20\200\20\200\20\200\20\200\20\200\20\200\20\200\20\200\20\200\20\200\20\200"..., > 414720) = 414720 > mmap2(NULL, 622592, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = > 0xb7cf0000 This mmap2() calls also do not look like very good: -1 is the fd parameter which shall be positive. The -1 is an error code which comes from a previous system call and it is not a valid file descriptor. > --- SIGSEGV (Segmentation fault) @ 0 (0) --- > +++ killed by SIGSEGV +++ Regards, Márton Németh _______________________________________________ Em28xx mailing list Em28xx@mcentral.de http://mcentral.de/mailman/listinfo/em28xx
