On Wed, Aug 06, 2014 at 04:02:22PM -0400, Alan Stern wrote: > > I doubt either of them forces users to hack up flags for these cases. > > Why was this change needed in the first place? There's no explanation > in the patch itself. Which chance? The one to not support SG_FLAG_LUN_INHIBIT? > > > At least for windows I suspect it just never sends the LUN encoded > > in the CDB and treats USB devices special instead of our insistance > > on pretending they are SCSI-2. > > We no longer pretend that USB mass-storage devices have any particular > SCSI level. See commit 09b6b51b0b6c. So the origina reported device must report SCSI-2 all by itself if he's running a recent kernel, ok. > > Maybe some of the USB people have on the wire traces or access to > > device or windows documentation on this? > > Most likely it varies with the version of Windows and the INQUIRY data > returned by the device. > > I can obtain hardware traces for the kinds of devices and computers > lying around here. But what sort of combinations should I test? I'd mostly be interested to see if it actualy encodes the LUN in the CDB for any USB multi-LUN device. -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
