Hello,
I have a Bullseye image with kernel 5.10.x and I want to control three GPIO pins almost in succession.
There are breaks in between the usage of the pins but I am having difficulty trying to make three pins work. Is this a known limitation or are the builds with gpio groups along with root groups not allowed to use the debian user with the debian groups?
I thought I figured this idea out in the past. I have been severely misunderstood currently or I am misunderstanding things with how Linux on the images is processing my direct commands.
So, https://www.redhat.com/sysadmin/manage-permissions, will show a list of commands for such an issue that I am currently seeking to solve.
Are other people having issues with the GPIO pins on the BBB or is it just me?
Does changing the user:group for specific files ever amount to anything when building source for particular peripherals on the BBB? The reason I am trying to change ownership of files and set permissions to groups is to control a three GPIO usage driver.
The driver says, “Three GPIO pins will make your driver move motors,” or at least it comes close to stating that fact.
So, I have tried w/ sysfs and gpiod. My current group is gpio while the user is root. I can change things obviously but nothing has worked to this day from about a month ago on my system from beagleboard.org images and kernels.
If you have any input or ideas I have not tried, please jump in. Rations accepted!
Seth
P.S. I will try again with updated user:group settings and see if there was something I missed. In the meantime, I implore you to help me in this endeavor of building a workin’ driver model…
I will most likely be back quickly to see if someone has promoted any findings in their images/kernels with user:group ideas and permissions.