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Message-ID: <8bd0f97a0801021058g15d32de7nd29102ec552ba5fa@mail.gmail.com> Date: Wed, 2 Jan 2008 13:58:56 -0500 From: "Mike Frysinger" <vapier.adi@...il.com> To: "David Brownell" <david-b@...bell.net> Cc: linux-usb-devel@...ts.sourceforge.net, "Robin Getz" <rgetz@...ckfin.uclinux.org>, gregkh@...e.de, linux-kernel@...r.kernel.org Subject: Re: [linux-usb-devel] [PATCH] : Allow embedded developers USB options normally reserved for OTG On Jan 2, 2008 1:47 PM, David Brownell <david-b@...bell.net> wrote: > On Wednesday 02 January 2008, Robin Getz wrote: > > From: Robin Getz <rgetz@...ckfin.uclinux.org> > > > > Allow embedded developers to turn support for USB Hubs off even if they have a > > full root hub. This saves the overhead (RAM and Flash size). > > ISTR that it won't save very much code though ... the Linux USB > stack structures all its enumeration logic around hubs. perhaps the code size is arguable as to whether it really matters. the reason we want it is that we have a USB host controller that will not work with USB hubs, so we want to make sure the system does not attempt such things. (yes, such a USB host controller is retarded, but the decision was out of our hands.) -mike -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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