omap_mux directory does not contain files


I installed ubuntu on my beagleboard-xm by following steps given on this page: .

Version of ubuntu is 14.04.

Now, i am trying to configure expansion pins as gpio pins. In order to achieve this i should use configuration files in omap_mux directory under /sys/kernel/debug.

My problem is that there is no file in that directory.

Debugfs is mounted at boot time by fstab file with parameters:

debugfs /sys/kernel/debug debugfs none 0 0

“mount | grep debug” gives:

debugfs on /sys/kernel/debug type debugfs (rw,none)

How can i configure these pins as gpio pins?

Thank you

omap_mux was a non-generic interface, therefor it's gone..