Well, Made some progress. Thanks to David<https://groups.google.com/forum/embed/?place=forum/beagleboard&showsearch=true&showpopout=true&showtabs=true&hideforumtitle=true&parenturl=http%3A%2F%2Fbeagleboard.org%2FCommunity%2FForums#!category-topic/beagleboard/newbies/laba4RmmfLo>, the issue has been tracked down to the cpu 'performance' profile. One switching to 'ondemand', resetting the camera driver loads perfectly. The driver reset would previously only work after 10 minutes, because the Angstrom distro is set by default boot in the problematic performance profile, then switch to 'ondemand' at 10 minutes.
So.. The total resolution, if you are having the same problem, is to run the script after reboot... cpufreq-set -c 0 -g ondemand modprobe -vr gspca_ov519; modprobe -v gspca_ov519; cpufreq-set -c 0 -g performance The next question... is, how do I change the default boot cpu governor profile? On Wednesday, 23 October 2013 21:12:34 UTC+13, Adam Langley wrote: > > I have a USB camera attached to my BeagleBone Black, but the video device > (/dev/video0) only sometimes succeeds in being created. > I havent figured out exactly what conditions cause a success or failure, > however.... > > This is dmesg output > > [ 8.990115] CAUTION: musb: Babble Interrupt Occurred > [ 9.392009] gspca_main: v2.14.0 registered > [ 9.418727] ov519 1-1:1.0: usb_probe_interface > [ 9.418754] ov519 1-1:1.0: usb_probe_interface - got id > [ 9.418775] gspca_main: ov519-2.14.0 probing 05a9:8519 > [ 16.530220] gspca_ov519: Can't determine sensor slave IDs > [ 16.553335] ov519: probe of 1-1:1.0 failed with error -22 > > > I have found that sometimes the following will cause the device to be > created, but not often > > modprobe -vr gspca_ov519; modprobe -v gspca_ov519 > > otherwise, I have to disconnect/reconnect the camera a dozen times before > it is successfully registered. > > > I have read this on a forum about an eye-toy camera on a completely > different system, but I wonder if it's related... > "Resolved! > > Not a software bug as such, turned out to be the Intel xHCI mode setting > in the bios for USB for my Asus Z87M-PLUS motherboard. Default setting was > Smart Mode. This made all usb ports usb 3.0 and/or "better" than 2.0, > meaning my webcmas wouldn't play nicely. Changing the bios setting to > Disabled saw the camera fire up instantly, along with routine connection of > my DVB USB stick. > > Other option to try is Auto, and EHCI Hand Off to Enabled" > > > > Does anybody have any clues? > -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/groups/opt_out.
