On Wed, Dec 21, 2011 at 06:12:00PM -0800, Greg KH wrote: > On Wed, Dec 21, 2011 at 05:21:18PM -0800, Benoit Goby wrote: > > USB gadget function driver used by the Android framework to > > implement the MTP and PTP protocols. It creates a character device > > that provides an interface for fast transfer of files and > > supports transferring files greater than 4GB. > > How does that character device work when it comes to these different > protocols? Care to provide some documentation? > > And as we discussed before, there are userspace implemetations of both > of these protocols somewhere, is this needed because you need this in > your composite device and that doesn't work well with gadgetfs? we have the functionfs, which is the same gadgetfs but "compositable". MTP/PTP should really live in userland. -- balbi
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