Niklas, > My personal feeling is that passthrough commands should simply follow > the storage standard exactly, and if a user space application does > adhere to the standard, tough luck, why are you using passthrough > commands instead of regular commands then? Passthrough commands by > definition follow a specific storage standard, and not the Linux > kernel block layer API. Yeah. I'm not sure how much of a problem non-ATA passthrough is for libata-attached devices. But it does seem messy that userland is making these kinds of assumptions. -- Martin K. Petersen Oracle Linux Engineering