I'm uneasy about this. I don't know device tree basics. But thanks for 
responding. I am attaching the output of version.sh

On Thursday, April 9, 2020 at 2:58:51 PM UTC-5, Mark Copper wrote:
>
> I have code that wants to write a Boolean value to this file on the 
> Beaglebone:
>    /sys/class/gpio/gpio26/value
> but there is no directory "gpio26" on this Beaglebone. 
>
> This code appears to have functioned in 2011 or so until some time 2013 
> and accessed P8 pin 14.
>
> What changed?
>
> Thank you.
>
> ----
>
> uname -a: Linux beaglebone 4.19.94-ti-r42 #1buster SMP PREEMPT Tue Mar 31 
> 19:38:29 UTC 2020 armv7l GNU/Linux
>

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Attachment: opt_scripts_tools_version
Description: Binary data

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