On 10/15/2010 02:24 AM, Robert Hancock wrote: >> I'm not certain, but doesn't this problem also affect DMA_TO_DEVICE PIO >> commands? >> Eg. SECURITY_ERASE_PREPARE and PIO_WRITE ? > > No, PIO data-out commands send a D2H register FIS after completion. It > appears that PIO data-in is the only special case. Yeap, it's an exception only for PIO data-in's. Thanks. -- tejun -- To unsubscribe from this list: send the line "unsubscribe linux-ide" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html