From mboxrd@z Thu Jan  1 00:00:00 1970
From: David Brownell <david-b@pacbell.net>
Subject: Re: USB, Host and Device on the same machine
Date: Mon, 27 Oct 2008 09:44:47 -0700
Message-ID: <200810270944.47246.david-b@pacbell.net>
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To: Fredrik Johansson <frejo242@gmail.com>
Cc: linux-embedded@vger.kernel.org

On Friday 24 October 2008, Fredrik Johansson wrote:
> if I load the ehci-hcd driver with g_serial already loaded it
> screws everything up since ehci-hcd driver attaches to both the OTG
> and the host controller, how can i prevent it from using the OTG
> controller?

If the OTG controller exposes EHCI as its host interface, it
sure *ought* to be managed by the EHCI driver.  Maybe you
should be submitting a patch adding OTG glue to EHCI?

If it's not exposing EHCI as its host interface, then it seems
your OTG driver is quite buggy...