On Thu, Feb 25, 2016 at 5:21 PM, Hans Petter Selasky <hps_at_selasky.org> wrote: > On 02/25/16 18:13, Miguel C wrote: > >> so should I step until that then run cheese, and then step again? >> > > You should get a breakpoint event when you start pwcview. Then single step. > (gdb) breakpoint usb_submit_urb Undefined command: "breakpoint". Try "help". (gdb) break usb_submit_urb Breakpoint 1 at 0x412c23: file kernel/linux_usb.c, line 601. (gdb) run -N 1-3M-HD-WebCam-SuYin Starting program: /usr/local/sbin/webcamd -N 1-3M-HD-WebCam-SuYin [New LWP 101819] [New Thread 802215000 (LWP 101819/webcamd)] : USB HID core driver Linux video capture interface: v2.00 lirc_dev: IR Remote Control driver registered, major 14 IR NEC protocol handler initialized IR RC5(x/sz) protocol handler initialized IR RC6 protocol handler initialized IR JVC protocol handler initialized IR Sony protocol handler initialized IR SANYO protocol handler initialized IR LIRC bridge handler initialized IR XMP protocol handler initialized b2c2-flexcop: B2C2 FlexcopII/II(b)/III digital TV receiver chip loaded successfully uvcvideo: Unable to create debugfs directory USB Video Class driver (1.1.1) cpia2: V4L-Driver for Vision CPiA2 based cameras v3.0.1 pvrusb2: V4L in-tree version:Hauppauge WinTV-PVR-USB2 MPEG2 Encoder/Tuner pvrusb2: Debug mask is 31 (0x1f) USBVision USB Video Device Driver for Linux : 0.9.11 em28xx: Registered (Em28xx v4l2 Extension) extension em28xx: Registered (Em28xx dvb Extension) extension Attached to ugen0.5[0] uvcvideo: Found UVC 1.00 device 1.3M HD WebCam (064e:c321) [New Thread 802216c00 (LWP 101439/webcamd)] [Switching to Thread 802215000 (LWP 101819/webcamd)] Breakpoint 1, usb_submit_urb (urb=0x80228b070, mem_flags=0) at kernel/linux_usb.c:601 601 if (urb == NULL) Current language: auto; currently minimal (gdb) With this I can not start pwcview or cheese because /dev/video doesn't exist yet Gonna try the sysctl for log capture > > --HPS >Received on Thu Feb 25 2016 - 16:31:42 UTC
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