GPIO Initialization

[Wackerbarth]

There seems to be some confusion concerning the initialization of the stepper GPIO pins.
In theory, U-Boot, working with the DTB overlay is supposed to handle this. As a result, the initialization using the Adafruit GPIO was removed.

I suspect that there is some combinations of the particular board (BBB, BBB-wireless, etc.), Umikaze configuration, Linux kernel, Adafruit version, and Redeem version that don't work together.

Would everyone add comments to this issue detailing combinations that either do, or do not work. Perhaps we can figure out what needs to be changed so that everyone can utilize a common setup.

[electronlove]

Overylay does not initialize with commit # 7044199. I had rolled it back. Updated Octoprint manually, and then applied the most recent commit, which also re-applied the previous one. In order to initialize, I have to type " for pin in $(echo "61 27 22 44 26 23 47 45 46 60"); do echo $pin; echo $pin >> /sys/class/gpio/export; echo "out" >> /sys/class/gpio/gpio${pin}/direction; done"

I running a Replicape on a (a) Beaglebone Black with Umikaze version 2.2.0-rc3 (c) Linux Kernel version 4.14.50-ti-r56, (d) Adafruit_GPIO version 1.0.3 maybe, (e) Redeem version 2.2.x