[fedora-arm] [PATCH] kernel .config options to enable USB on a Wandboard (and other i.MX systems)

[Niels de Vos]

On Fri, Jul 12, 2013 at 01:33:52AM -0500, Dennis Gilmore wrote:
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> On Thu, 11 Jul 2013 17:05:55 +0200
> Niels de Vos <devos at fedoraproject.org> wrote:
> 
> > Hi Peter and others,
> > 
> > The following .config options make it possible to use USB on a
> > Wandboard Duallite and likely other i.MX based boards. USB works for
> > me after loading the modules manually:
> > 
> > [root at wandboard ~]# modprobe ci13xxx_imx
> > [root at wandboard ~]# modprobe usbmisc_imx
> > [root at wandboard ~]# dmesg
> 
> tested your scratch build on my wandboard quad i only had to load
> usbmisc_imx as ci13xxx_imx was already loaded. I wonder if we need to
> patch dracut to pull the module into the initramfs and it will just
> work.

I think loading the modules should happen automatically and depends on 
the dtb that is used. The ci13xxx_imx supports USB-OTG and there are 
some references to that in the dtb for the Quad, but fewer for the 
Duallite. At least, thats my understanding after a quick look.

Whatever should trigger loading if usbmisc-imx is unclear to me. Maybe 
there should be an option to include the usbmisc_imx module in 
ci13xxx_imx... Oh well, something to ponder about later. Ideas welcome!

Thanks,
Niels