atmel-samd: Stop double CSW after MSC reads#405
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This explicit zero length xfer leads to a second CSW packet. If another read was started between the two CSWs then the host gets confused and resets the device. On reads, the CSW is automatically sent when we reply with the total length. Writes must do it manually so they can wait for the disk to flush the data.
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This explicit zero length xfer leads to a second CSW packet. If
another read was started between the two CSWs then the host gets
confused and resets the device.
On reads, the CSW is automatically sent when we reply with the
total length. Writes must do it manually so they can wait for the
disk to flush the data.