On 7/26/2017 11:06 AM, Robert Nelson wrote: > On Wed, Jul 26, 2017 at 10:32 AM, Charles Steinkuehler > <[email protected]> wrote: >> On 7/26/2017 10:12 AM, Robert Nelson wrote: >>> On Tue, Jul 25, 2017 at 8:43 PM, Daren Schwenke <[email protected]> >>> wrote: >>>> I can confirm the both the BBG and BBGW will boot with this image from an >>>> SD >>>> card: >>>> https://rcn-ee.com/rootfs/bb.org/testing/2017-02-12/machinekit/bone-debian-8.7-machinekit-armhf-2017-02-12-4gb.img.xz >>>> >>>> Getting wireless to actually work is a whole other ball game which I have >>>> yet to achieve, but at least the image boots now. >>> >>> Correct, that "3.8.x" based image will support the BBGW/BBBW but with >>> wireless disabled. To enable wireless, sadly you will need a v4.4.x+ >>> kernel. While we have a xenomai based v4.4.x build, it's based on >>> Xenomai 3.0.x, and not the 2.6.x based Xenomai machinekit expects.. >> >> Machinekit can also run with the 4.x preempt_rt kernel on the 'bone, >> but the PRU driver hasn't been updated for the re-arranged files in >> /sysfs so it won't work "out of the box". > > What is it looking for in /sysfs? With the v4.4.x-rt we can enable the > 3.8.13 compatible uio driver, then as long as config-pin is used, it > should sync up with what it use to do with 3.8.13..
IIRC, several of the setup scripts are looking for the slots file to verify/load an overlay, some code is looking for the ADC entries in sysfs (which have moved IIRC), and the actual HAL driver for the PRU may have a sysfs path or two hard-coded (I'd have to check). So nothing really that complex (particularly vs. updating to Xenomai 3), but a 4.x kernel won't work without a few tweaks and maybe a bit of coding. Anyone with a BBG/BBGW want to try getting things running with a 4.x kernel? I can provide guidance and maybe do the bit of coding if someone's willing to help with the shell scripts and do testing. Deemarc / Daren? -- Charles Steinkuehler [email protected] -- website: http://www.machinekit.io blog: http://blog.machinekit.io github: https://github.com/machinekit --- You received this message because you are subscribed to the Google Groups "Machinekit" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. Visit this group at https://groups.google.com/group/machinekit. For more options, visit https://groups.google.com/d/optout.
