ehci-hcd module is not loaded automatically on pandaboard

[Fathi Boudra]

ehci-hcd module is not loaded automatically on pandaboard.
hwpack: hwpack_linaro-lt-panda (3.4.11-2604-ga393db0-omap4plus-linaro-lt-omap)
rootfs: nano

[warmcat (andy-warmcat)]

In the last weeks we changed our config to build these two modules modular instead of in-kernel.

The reason is that after patches to make the defaults more sane, with the modules out or removed, the OMAP4 Pandas takes less than half the idle power it otherwise would.

The choices are AFAIK:

 - force them to build in-kernel in the config
 - force-insert the modules during init
 - add a udev rule to insert them

[Fathi Boudra (fboudra)]

I'm adding an udev rules as suggested by Andy Green:
$ cat /lib/udev/rules.d/40-ti-omap-ehci.rules
ACTION=="add", SUBSYSTEM=="platform", KERNEL=="usbhs_omap", RUN+="/sbin/modprobe -bv ehci-hcd"

[Fathi Boudra (fboudra)]

Fix released - verified on http://validation.linaro.org/lava-server/scheduler/job/38103