On Mon, Jan 09, 2012 at 07:09:41AM -0800, Greg KH wrote: > On Mon, Jan 09, 2012 at 03:32:38PM +0100, Sebastian Andrzej Siewior wrote: > > On 01/09/2012 03:23 PM, Matthew Wilcox wrote: > > >On Mon, Jan 09, 2012 at 01:55:02PM +0100, Sebastian Andrzej Siewior wrote: > > >>Hi Sarah, > > >> > > >>I've been looking into UAS support for hcds without support for sg. > > > > > >I think that's fundamentally the wrong approach. Instead, HCDs should > > >be modified to add support for SGs. I posted a patch series that made > > >progress towards that goal a while back. > > > > That is what Felipe and I decided for the gadget framework. > > Alan / Greg, any comments from your side? > > HGs should be supporting sg, why are they not? MUSB, for instance, when you're using it's internal DMA engine, that thing can't support SGs and it has so many buffer rules (alignments, size, etc) that it's the most useless thing out there ;-) -- balbi
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