[beagleboard] xenomai beagleboard xm ethernet not working

I have a rev b.I use ubuntu did you do
Sudo ifconfig -a
Sudo dhclient usb1 (this is my set up)

Is this with linux kernel with the xenomai patch?

ifconfig -a gives no other results than the loop back

lsusb is unable to identify the device on usb port 2

This has something to do with how the kernel I am using was built and I'm trying to find out how to rectify the situation.

I hope its something in menuconfig since I have not yet found an ethernet patch for said kernel.