Sorry, was a bit hasty there. Should have tested properly. The US_FL_NO_ATA_1X flag does not fix this problem, but the US_FL_IGNORE_UAS flag does. The patch should be *** unusual_uas.h.orig 2014-12-18 19:20:12.000000000 -0800 --- unusual_uas.h 2014-12-31 12:55:56.000000000 -0800 *************** *** 47,52 **** --- 47,59 ---- USB_SC_DEVICE, USB_PR_DEVICE, NULL, US_FL_NO_ATA_1X), + /* Reported by: Thomas Eriksson <lterik@xxxxxxxxx> */ + UNUSUAL_DEV(0x0bc2, 0x2321, 0x0000, 0x9999, + "Seagate", + "Expansion", + USB_SC_DEVICE, USB_PR_DEVICE, NULL, + US_FL_IGNORE_UAS), + /* https://bbs.archlinux.org/viewtopic.php?id=183190 */ UNUSUAL_DEV(0x0bc2, 0x3312, 0x0000, 0x9999, "Seagate", -- 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