Thoughts I want to capture (for later discussion):

- working theory: I want to be able to access my communication pins (my 
SPI, I2C, and UART serial) stuff through TTYO1 thru 6 so I can use streams 
(a la fopen() in C ) so I have some /dev/ abstraction insulating me from a 
lot of platform and cross-compilation issues.

- I really need to learn python so I can talk more intelligently on how 
these ideas relate to python.

- apparently there are three accepted ways of configuring these pins: 
overlays, the uEnv.txt file (Q: are the overlay names loaded there just the 
.dts filenames minus the 00A0.dts suffix...kinda looks like) and the 
config-pin utility. Still have questions in my mind as to how they all work 
together to configure the board.



On Thursday, March 9, 2017 at 5:17:59 AM UTC-7, woody stanford wrote:
>
> OK, I want to get to the bottom of this whole GPIO issue on the BBB, so 
> I'm opening up this thread as a "documenter" whereby which I can take notes 
> based on my research into how you consistently, stably and SOLIDLY 
> programatically access the GPIO pins on a BBB. I've already done a lot of 
> the footwork so I'm not entirely unknowledgeable, but I want to get to the 
> heart of this issue and solve the mental block people have with this. A 
> private hope.
>
> Either way, probably a good mess of processed links, articles and 
> information where you can start.
>

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