So, when I tried to run a 3.18 kernel, I ran into two issues. One was the missing capemgr, and I couldn't figure out how to make DTBs do what I wanted. The other was difficulty playing back audio via libao and alsa. Dropping back to 3.8 addressed both those issues.
I'm going to be designing a proper cape next month that includes an I2S audio codec, as well as PRU real-time GPIO use, and ADC use (not speed-critical). I'd love to know that I won't be dying if I try to build the support for that cape around 3.19. Any ideas about why audio had issues in 3.18 and not 3.8? The symptom was clicky/poppy playback. I think it sounded like what a buffer underrun would sound like. > On Dec 27, 2014, at 14:36 , Charles Steinkuehler <[email protected]> > wrote: > > On 12/27/2014 4:15 PM, Robert Nelson wrote: >> On Fri, Dec 26, 2014 at 5:55 PM, Thorsten von Eicken >> <[email protected]> wrote: >>> On Wednesday, December 10, 2014 5:53:42 AM UTC-8, RobertCNelson wrote: >>>> >>>> I'm not really planning to document v3.14.x further, as something >>>> special is planned to be merged for v3.19-rc1. (if your following the >>>> device-tree mainline list) >>> >>> Can you kindly point me to any info about what 3.19 is going to bring? >>> Thanks! >> >> Where's the fun in that! ;) It's what "everyone" has been bugging me >> about personally and on this list for over a year. ;) if you can't >> find it on the device-tree mailing list, you "didn't" want it bad >> enough!!! ;) >> >> (Sarcasm!!! ;)) > > A late holiday present, since RCN seems to be camped out a bit too close > to the eggnog! :) > > It's device-tree changesets. This is basically what cape manager was > trying to do, but with the full support of the kernel developers behind > it which will hopefully result in fewer kernel crashes! :) > > ...some links to get you started: > > http://beagleboard.org/blog/2014-08-27-device-tree-overlay-support-lands-upstream/ > > http://lxr.free-electrons.com/source/Documentation/devicetree/changesets.txt > > -- > Charles Steinkuehler > [email protected] > > -- > 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/d/optout. -- Rick Mann [email protected] -- 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/d/optout.
