On Sat, Aug 31, 2019 at 9:52 PM [email protected]
<[email protected]> wrote:
>
>
> I remember the first time I loaded Linux. It was a Slackware 0.95 release. I 
> must have loaded it a dozen times before I got the hang of it.
>
> I find myself doing the same thing again, this time with various releases for 
> the BBB and Machinekit.  Bone-debian-9.9-machinekit-armhf-2019-08-25-4gb 
> seems to be almost correct for my particular problem. Except ...
>
> Today I used config-pin and the results matched up with the CRAMPS.bbio file. 
> I'm even able to yank on a few pins and see the effect. Slow progress. In 
> earlier version from a few years ago I was able to use the led (P9_25) for 
> signaling. No more.
>
> It's very clear that at some fairly recent time a decision was made to muck 
> with P9_25. Why?
> Further, calling up other configurations will break because 
> /sys/devices/platform/ocp/ocp:P9_25_pinmux no longer exists. That isn't very 
> nice. For some reason, that for me at least is completely obscure, this pin 
> was disabled. Will someone, anyone with a knowledge of the events around this 
> pin please comment. I would really like to know when so I can load up the 
> release just before that happened.

P9.25 is hdmi audio..

Regards,

-- 
Robert Nelson
https://rcn-ee.com/

-- 
website: http://www.machinekit.io blog: http://blog.machinekit.io github: 
https://github.com/machinekit
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