Re: [Bug 80711] SG_FLAG_LUN_INHIBIT is no longer implemented and there's not way to prevent the kernel from using the 2nd cdb byte for the LUN

Christoph Hellwig
2014-07-22T16:13:27Z

This is going in the wrong direction. If your device doesn't like
the LUN field in the CDB it misreports the standard compliance level.

We'll need to fix that root cause, probably by a black list entry
instead of hacking around it in userspace.