Robert once again thanks. In your script:
start on runlevel 2
script
if test -f /etc/default/capemgr; then
. /etc/default/capemgr
fi
capemgr=$(ls /sys/devices/bone_capemgr.*/slots 2> /dev/null || true)
if [ ! "x${CAPE}" = "x" ] ; then
if [ ! "x${capemgr}" = "x" ] ; then
echo ${CAPE} > ${capemgr}
fi
fi
end script
I believe "capemgr=$(ls /sys/devices/bone_capemgr.*/slots 2> /dev/null ||
true)" is to resolve whether it is bone_capemgr.8 or .9
but I can not figure out how ${CAPE} is set? Thanks again.
On Wednesday, March 12, 2014 5:15:01 PM UTC-4, RobertCNelson wrote:
>
> On Wed, Mar 12, 2014 at 4:09 PM, Robert Nelson
> <[email protected]<javascript:>>
> wrote:
> > On Wed, Mar 12, 2014 at 4:05 PM, Bit Pusher
> > <[email protected]<javascript:>>
> wrote:
> >> Thanks John, this worked. I also tried modifying
> >> /lib/firmware/cape-boneblack-hdmi-00A0.dts to remove the conflicts
> (without
> >> disabling HDMI in /boot/uboot/uEnv.txt) , and then recompiled to make a
> new
> >> /lib/firmware/cape-boneblack-hdmi-00A0.dtbo,
> >> but dmesg still reported a conflict with P9_25 even though P9_25 and
> mcasp0
> >> had been removed. This indicates to me that
> >> /lib/firmware/cape-boneblack-hdmi-00A0.dtbo is not being read from
> >> /lib/firmware at boot; do you know where it is being read from? Or can
> you
> >> point me to a link for the process and places of loading overlay files
> on
> >> the Ubuntu BBB at boot? I am really having difficulties finding
> >> documentation regarding this so any helpful links are appreciated.
> >
> > With the current kernel config, all "firmware" is built into the
> > kernel. We could disable that, but then it could take udev up to 60
> > seconds to actually find it on debian/ubuntu based systems. Best
> > thing to do is disable all the capes in uEnv.txt then write an init
> > script to load that specific *.dtbo into the slot early in bootup.
>
> for reference, something like:
>
>
> https://github.com/RobertCNelson/omap-image-builder/blob/master/target/init_scripts/capemgr-ubuntu.sh
>
>
> Regards,
>
> --
> Robert Nelson
> http://www.rcn-ee.com/
>
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