Comment 28 for bug 1584557

According to [1], the :u quirk mentioned in this bug is equivalent to US_FL_IGNORE_UAS, which completely disables uas. The US_FL_NO_ATA_1X quirk can be specified in modprobe.conf as :t. I'm not sure what that quirk does.
[1] https://en.opensuse.org/SDB:USB_3.0_Hard_Drive_troubleshooting

Unfortunately I can't test this against my STEA1000400 as it is currently in off-site storage, but I'll try this when I get it back.