Messages in this thread | | | Date | Wed, 2 Jan 2008 13:58:56 -0500 | From | "Mike Frysinger" <> | Subject | Re: [linux-usb-devel] [PATCH] : Allow embedded developers USB options normally reserved for OTG |
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On Jan 2, 2008 1:47 PM, David Brownell <david-b@pacbell.net> wrote: > On Wednesday 02 January 2008, Robin Getz wrote: > > From: Robin Getz <rgetz@blackfin.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
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