The best way to verify whether a device is connected in UASP mode that I know of (so far, still looking for a command line check) is to look at the disk in device manager. If it reports “SCSI” in the device name in device manger, you’re operating in UASP mode.
That said, from what we can tell the older Renesas chip does NOT support USAP, only the newer one does. I say this because a Windows 8 system with UASP support reports UASP connections only for the newer chip. We call out the newer/older chip revisions here:
Further, UASP isn’t supported by Microsoft on Windows 7. The only good/easy way to get UASP going on Win 7 is on USB 3 capable main boards from ASUS, using their USB 3.0 Boost drivers (only possible on their motherboards). An article from Tom’s hardware guide provides the best details I’ve seen to date on the topic of enabling UASP support:
Long story short this is a very difficult scenario on Windows 7- only Windows 8 offers “good” UASP support with your having to cobble together the solution using 3rd party drivers at 4 levels of the system.
If anyone knows a way to check for UASP support with a command line PLEASE let us know! I appreciate your mention of the method to check using DDK, and if anyone knows of a simple command line check that doesn’t require installation of other tools this would be most helpful.
Sorry I can’t offer a simple answer, but I hope the details are helpful!
MCITP Enterprise Support Technician