On Sun, 2015-06-07 at 04:19 +0000, James wrote: > I am having trouble with my USB3 drive, it drops the connection. > > I found this in dmesg: > > [59375.478410] usb 3-1: USB controller 0000:02:00.0 does not support > streams, which are required by the UAS driver. > > I use kernel-4.0.4 > > [58247.659416] usb-storage 3-1:1.0: USB Mass Storage device detected > [58247.659614] scsi host7: usb-storage 3-1:1.0 > [58248.662967] scsi 7:0:0:0: Direct-Access Seagate Expansion > 0502 PQ: 0 ANSI: 6 It shows a fallback to the storage driver. That ought to happen. Your problem is caused by something else. You need to post more of your log. Especially the part around a drop. Regards Oliver -- 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