> eventually to PIO is guaranteed to fix it. The SCSI layer can't know > this, and shouldn't know this. The MD layer certainly doesn't get to That depends which bit you mean - at the lower levels SCSI most certainly knows this kind of stuff as it too must deal with speed shifting and of course has to handle domain validation. -- 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