Hi David, Fantastic - thanks for that help. Yes I am using Angstrom - and the power profile was the problem. For some reason, the camera driver fails to detect the sensor type if the BBB is set to the performance profile (1Ghz). If I set it t ondemand, I am able to reload the driver, and it successfully detects the camera. My full explanation is here:
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/beaglebone-black/Y_FDTVI4TrY Can I ask... how do I change the default boot cpu governor profile? Ideally, I need the CPU set to ondemand (or just any lower CPU clock speed) before my USB device drivers are initialized, otherwise the driver fails to initialize the USB camera. I could just have a script run AFTER everything has initialized and failed, but it would be much cleaner for the USB initialize not to fail in the first place... and from what I can see, this just means booting the CPU into a lower CPU speed... Thanks!! On Friday, 25 October 2013 14:11:03 UTC+13, David wrote: > > On 13-10-24 04:19 PM, Adam Langley wrote: > > I am having trouble with USB, but I have exhausted all the logging I > > can find in the uBoot (dmesg). > If you are running Angstrom, use journalctl. This is the systemd log > viewer. You can customize logs in /etc/systemd/journald.conf. > > I have a suspicion that some background process is doing something at > > exactly 10 minutes after boot - so I want to figure out what that > > could be. > I believe that the CPU frequency is set to ondemand 10 minutes after > startup. Try disabling cpu-ondemand.timer. > > > > Firstly, where are all the places that I can find logging on the > > system? I am currently only aware of using dmesg. > > Secondly, how do I increase the verbosity level for these logging > > subsystems to include debug level messages, rather than just > > info/warn/error etc? > > > > Thank you very much, > > > > Adam > > -- > > 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] <javascript:>. > > For more options, visit https://groups.google.com/groups/opt_out. > > -- 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.
