Date: Tue, 05 Oct 2010 11:46:37 +0200 From: Alexander Leidinger <Alexander@Leidinger.net> To: Jashank Jeremy <jashank.jeremy@optusnet.com.au> Cc: Multimedia discussions <freebsd-multimedia@freebsd.org> Subject: Re: Skype not getting video from webcam Message-ID: <20101005114637.12616q8s2ee68dgk@webmail.leidinger.net> In-Reply-To: <20101004223134.GH11972@vk2pj.dyndns.org> References: <20101004080136.GF11972@vk2pj.dyndns.org> <201010041224.27506.hselasky@c2i.net> <20101004223134.GH11972@vk2pj.dyndns.org>
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Quoting Jashank Jeremy <jashank.jeremy@optusnet.com.au> (from Tue, 5 Oct 2010 09:31:34 +1100): > On Mon, Oct 04, 2010 at 12:24:27PM +0200, Hans Petter Selasky wrote: >> The IOCTL's are being changed by the Linux-oxulator. See linux.ko. > > So the Linuxolator is changing ioctl(2); that I would expect. What I > don't expect is it to change one ioctl(2) into a completely unrelated > one. > > uvcvideo: uvc_v4l2_ioctl(VIDIOCGCAP) > uvcvideo: Unknown ioctl 0x40047601 > uvcvideo: uvc_v4l2_ioctl(VIDIOCGCAP) > uvcvideo: Trying format 0x56595559 (YUYV): 10000x10000. > uvcvideo: Using default frame interval 200000.0 us (5.0 fps). > > corresponds to > > 86117 skype CALL linux_ioctl(0xb,0x80685600 ,0x2dc9e014) > 86117 skype RET linux_ioctl -1 errno 22 Invalid argument > 86117 skype CALL linux_ioctl(0xb,0x803c7601 ,0x2dc9e07c) > 86117 skype RET linux_ioctl 0 > > The ioctl(2)'s are completely different, and when I go and check the > lookup table in stable/8/sys/compat/linux/linux_ioctl.h, I find: > > #define LINUX_VT_OPENQRY 0x5600 > #define LINUX_VIDIOCGCAP 0x7601 > > Why is Skype sending a VT_OPENQRY, and webcamd receiving it as a > VIDIOCGCAP? I'm not sure this is what is happening. The OPENQRY gets the "Invalid argument" response, not an "Unknown ioctl"/ENOSYS. Maybe you need to add some printfs to linux_ioctl.c to find out what is going on there. Bye, Alexander. -- Professor Farnsworth: "Oh my, that steamed carrot was a bit spicy for me." http://www.Leidinger.net Alexander @ Leidinger.net: PGP ID = B0063FE7 http://www.FreeBSD.org netchild @ FreeBSD.org : PGP ID = 72077137
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