Hi, Felipe Balbi <felipe.balbi@xxxxxxxxxxxxxxx> writes: >> From: Felipe Balbi >>> Sent: 07 April 2017 12:37 >>> Just like we did for all other endpoint types, let's rely on a chained >>> TRB pointing to ep0_bounce_addr in order to align transfer size. This >>> will make the code simpler. >> ... >> >> Is the dwc3 similar enough to xhci to have an 'immediate data' bit? >> If so the aligning data could come from the 8 byte 'address' field. > > you mean like patch 1 in this very series? Oh no, you mean for the remaining bytes for alignment. Well, 8 bytes might not be enough to align anything, right? :-) Besides, "aligned" here refers to length not memory address :-) OUT transfers on dwc3 need to have their length setup so that it is divisible by wMaxPacketSize of the endpoint in question. -- balbi
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