I fiddle with AM335xSK board. I see a tutorial of BBB, which runs command:
**root@beaglebone:~#** less /sys/kernel/debug/pinctrl/44e10800.pinmux/pins
On my AM335xSK board, it has no response, i.e. even after the ‘enter’ key. Please see the photo:
BTW, the target has the latest version:
root@am335x-evm:/# uname -r
What would be in BBB, and AM335xSK? Thanks,
Sorry, I added an incorrect link. Here is the picture:
So… Maybe if you actually booted with the BBB kernel?
I find the following message online. I guess that when kernel configuring, some menu options results in the pingroups file genreated. Any experts know which kernel configure menu controls this?
BeagleBone Black Linux kernel stores groups of pins reserved for eMMC, HDMI, etc. in a number of files under/sys/kernel/debug/pinctrl/44e10800.pinmux/ directory. To read the contents of the pingroups file that provides information on the groups of pins dedicated to a specific functionality,