Great, thanks! And not to be a pest but I assume in order to undo that 
change I simply comment the line that I add to the uEnv.txt and that's it? 
Should I worry about removing the *.dtbo object from the initrd?

On Friday, November 11, 2016 at 3:22:17 PM UTC-5, RobertCNelson wrote:
>
> On Fri, Nov 11, 2016 at 2:14 PM, Zach B <[email protected] <javascript:>> 
> wrote: 
> > Thanks Robert! That solved the problem I have been having. The overlay 
> > loaded and everything looks to be working. One follow up question I do 
> have 
> > is what is the proper way to load a custom overlay on startup? Is there 
> a 
> > way to enable multiple overlays as long as they don't try to use the 
> same 
> > pins? 
>
> Add it /boot/uEnv.txt: 
>
> ##Example v4.1.x 
> #cape_disable=bone_capemgr.disable_partno= 
> #cape_enable=bone_capemgr.enable_partno= 
>
> ##Example v4.1.x 
> #cape_disable=bone_capemgr.disable_partno= 
> cape_enable=bone_capemgr.enable_partno=PRU-GPIO-BLINK 
>
> You'll need to copy PRU-GPIO-BLINK-00A0.dtbo to /lib/firmware/ 
>
> then run: 
>
> sudo /opt/scripts/tools/developers/update_initrd.sh 
>
> To copy the new *.dtbo object into the initrd.. 
>
> Then just reboot, and you should see your overlay loaded.. 
>
> Regards, 
>
> -- 
> Robert Nelson 
> https://rcn-ee.com/ 
>

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