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Hey everyone: Anyone clueful want to nominate an xA1 IdentifyPacketDevice bit to fix this: to make SwDma/MwDma/UDma as capable of precise byte counts as Pio? If the bit is set, then the device promises, in the x03 StatusIn phase after some Dma data moved out, to set x1F5:1F4 to the bytes it received but did not request. For example, if the host sent 514 bytes but no matter than in Pio mode the device would only have requested 512 bytes, the device would set x1F5:1F4 = x00:02. If the host sent 8 bytes but in Pio mode the device only would have requested 7 bytes, the device would set x1F5:1F4 to x00:01. Good/ bad/ confused idea? Please comment. Thanks in advance. Pat LaVarre Subscribe/Unsubscribe instructions can be found at www.t13.org.
