Hi, (please don't top-post) On Sun, Dec 14, 2014 at 08:39:18AM +0530, sundeep subbaraya wrote: > Hi Paul, > > As per my understanding, for BULK OUT we do queue a request with 512 > bytes length since we do not sometimes we _do_ know the size. In case of Mass Storage, we _know_ that the first bulk out transfer will be 31-bytes (CBW), if we were to start a 31-byte transfer, we would't receive anything. > know the length of the transfer Host is going to send. For Control OUT > we know the length in wLength of > Setup packet, hence I assumed there is no difference in programming > model of Control IN and OUT. there is _no_ difference. It's just that it was agreed that for anything other than control ep, the function drivers would take care of it. See the uses of quirk_ep_out_aligned_size. -- balbi
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