Hi, On Thu, Dec 19, 2013 at 02:54:31PM +0900, Anton Tikhomirov wrote: > > WARN_ON(ret < 0); > > > > Regards > > Pratyush > > By the way, chaining additional (auxiliary) TRB would allow complying with > Buffer Size Rule on _UDC_driver_level_ for any type of OUT endpoints, when > total size of a Buffer Descriptor must be a multiple of MaxPacketSize: > > rem = request_length % MaxPacketSize > > general TRB size = request_length (CHN = 1)
should be request_length - rem > aux TRB size = MaxPacketSize - rem (CHN = 0) should be rem > Buffer for aux TRBs can be allocated at initialization time and used > when necessary. send a patch and test it for weeks ;-) -- balbi
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