Hi, guys, I have SYBA USB 3.0 4-port PCI-Express Controller Card, VIA VL800 Chipset Model SY-PEX20103 and Seagate external USB-3.0 drive GoFlex Desk. I have compiled from sources to the latest kernel 3.3.0-rc7 The drive works when connectd to USB-2.0, but the system does not recognize the drive when connected to USB-3.0 port. I see messages in /var/log/message "device descriptor read/8, error -110" Here is relevant information: uname -a: --------- Linux pethome 3.3.0-rc7 #2 SMP Tue Mar 13 09:41:48 EDT 2012 x86_64 x86_64 x86_64 GNU/Linux lspci -vvv ---------- Mar 13 10:40:56 localhost kernel: xhci_hcd 0000:02:00.0: xHCI Host Controller Mar 13 10:40:56 localhost kernel: xhci_hcd 0000:02:00.0: new USB bus registered, assigned bus number 9 Mar 13 10:40:56 localhost kernel: xhci_hcd 0000:02:00.0: irq 16, io mem 0xfbaff000 Mar 13 10:40:56 localhost kernel: usb usb9: New USB device found, idVendor=1d6b, idProduct=0002 Mar 13 10:40:56 localhost kernel: usb usb9: New USB device strings: Mfr=3, Product=2, SerialNumber=1 Mar 13 10:40:56 localhost kernel: usb usb9: Product: xHCI Host Controller Mar 13 10:40:56 localhost kernel: usb usb9: Manufacturer: Linux 3.3.0-rc7 xhci_hcd Mar 13 10:40:56 localhost kernel: usb usb9: SerialNumber: 0000:02:00.0 Mar 13 10:40:56 localhost kernel: hub 9-0:1.0: USB hub found Mar 13 10:40:56 localhost kernel: hub 9-0:1.0: 1 port detected Mar 13 10:40:56 localhost kernel: xhci_hcd 0000:02:00.0: xHCI Host Controller Mar 13 10:40:56 localhost kernel: xhci_hcd 0000:02:00.0: new USB bus registered, assigned bus number 10 Mar 13 10:40:56 localhost kernel: usb usb10: New USB device found, idVendor=1d6b, idProduct=0003 Mar 13 10:40:56 localhost kernel: usb usb10: New USB device strings: Mfr=3, Product=2, SerialNumber=1 Mar 13 10:40:56 localhost kernel: usb usb10: Product: xHCI Host Controller Mar 13 10:40:56 localhost kernel: usb usb10: Manufacturer: Linux 3.3.0-rc7 xhci_hcd Mar 13 10:40:56 localhost kernel: usb usb10: SerialNumber: 0000:02:00.0 Mar 13 10:40:56 localhost kernel: hub 10-0:1.0: USB hub found Mar 13 10:40:56 localhost kernel: hub 10-0:1.0: 4 ports detected Boot messages from /var/log/messages ------------------------------------ Mar 13 10:40:56 localhost kernel: xhci_hcd 0000:02:00.0: xHCI Host Controller Mar 13 10:40:56 localhost kernel: xhci_hcd 0000:02:00.0: new USB bus registered, assigned bus number 9 Mar 13 10:40:56 localhost kernel: xhci_hcd 0000:02:00.0: irq 16, io mem 0xfbaff000 Mar 13 10:40:56 localhost kernel: usb usb9: New USB device found, idVendor=1d6b, idProduct=0002 Mar 13 10:40:56 localhost kernel: usb usb9: New USB device strings: Mfr=3, Product=2, SerialNumber=1 Mar 13 10:40:56 localhost kernel: usb usb9: Product: xHCI Host Controller Mar 13 10:40:56 localhost kernel: usb usb9: Manufacturer: Linux 3.3.0-rc7 xhci_hcd Mar 13 10:40:56 localhost kernel: usb usb9: SerialNumber: 0000:02:00.0 Mar 13 10:40:56 localhost kernel: hub 9-0:1.0: USB hub found Mar 13 10:40:56 localhost kernel: hub 9-0:1.0: 1 port detected Mar 13 10:40:56 localhost kernel: xhci_hcd 0000:02:00.0: xHCI Host Controller Mar 13 10:40:56 localhost kernel: xhci_hcd 0000:02:00.0: new USB bus registered, assigned bus number 10 Mar 13 10:40:56 localhost kernel: usb usb10: New USB device found, idVendor=1d6b, idProduct=0003 Mar 13 10:40:56 localhost kernel: usb usb10: New USB device strings: Mfr=3, Product=2, SerialNumber=1 Mar 13 10:40:56 localhost kernel: usb usb10: Product: xHCI Host Controller Mar 13 10:40:56 localhost kernel: usb usb10: Manufacturer: Linux 3.3.0-rc7 xhci_hcd Mar 13 10:40:56 localhost kernel: usb usb10: SerialNumber: 0000:02:00.0 Mar 13 10:40:56 localhost kernel: hub 10-0:1.0: USB hub found Mar 13 10:40:56 localhost kernel: hub 10-0:1.0: 4 ports detected When connected to usb-3.0: -------------------------- Mar 13 10:37:52 localhost kernel: hub 10-0:1.0: Cannot enable port 3. Maybe the USB cable is bad? Mar 13 10:40:58 localhost kernel: usb 10-2: new SuperSpeed USB device number 3 using xhci_hcd Mar 13 10:41:03 localhost kernel: usb 10-2: device descriptor read/8, error -110 Mar 13 10:41:03 localhost kernel: usb 10-2: new SuperSpeed USB device number 3 using xhci_hcd Mar 13 10:41:08 localhost kernel: usb 10-2: device descriptor read/8, error -110 Mar 13 10:41:08 localhost kernel: usb 10-2: new SuperSpeed USB device number 4 using xhci_hcd Mar 13 10:41:13 localhost kernel: usb 10-2: device descriptor read/8, error -110 Mar 13 10:41:14 localhost kernel: usb 10-2: new SuperSpeed USB device number 4 using xhci_hcd Mar 13 10:41:19 localhost kernel: usb 10-2: device descriptor read/8, error -110 Mar 13 10:41:19 localhost kernel: usb 10-2: new SuperSpeed USB device number 5 using xhci_hcd Mar 13 10:41:24 localhost kernel: usb 10-2: device descriptor read/8, error -110 Mar 13 10:41:24 localhost kernel: usb 10-2: new SuperSpeed USB device number 5 using xhci_hcd Mar 13 10:41:29 localhost kernel: usb 10-2: device descriptor read/8, error -110 Mar 13 10:41:29 localhost kernel: hub 10-0:1.0: unable to enumerate USB device on port 2 When connected to usb-2.0: -------------------------- Mar 13 10:42:03 localhost kernel: hub 4-0:1.0: unable to enumerate USB device on port 1 Mar 13 10:42:05 localhost kernel: usb 1-2: new full-speed USB device number 2 using uhci_hcd Mar 13 10:42:05 localhost kernel: usb 1-2: New USB device found, idVendor=046d, idProduct=08b2 Mar 13 10:42:05 localhost kernel: usb 1-2: New USB device strings: Mfr=0, Product=0, SerialNumber=0 Mar 13 10:42:05 localhost kernel: Linux video capture interface: v2.00 Mar 13 10:42:05 localhost kernel: pwc: Logitech QuickCam 4000 Pro USB webcam detected. Mar 13 10:42:06 localhost kernel: pwc: Registered as video0. Mar 13 10:42:06 localhost kernel: input: PWC snapshot button as /devices/pci0000:00/0000:00:1a.0/usb1/1-2/input/input3 Mar 13 10:42:06 localhost kernel: usbcore: registered new interface driver Philips webcam Mar 13 10:42:06 localhost kernel: usbcore: registered new interface driver snd-usb-audio Mar 13 10:44:11 localhost kernel: hub 10-0:1.0: Cannot enable port 2. Maybe the USB cable is bad? Mar 13 10:44:30 localhost kernel: usb 4-1: new high-speed USB device number 4 using ehci_hcd Mar 13 10:44:30 localhost kernel: usb 4-1: New USB device found, idVendor=0bc2, idProduct=50a5 Mar 13 10:44:30 localhost kernel: usb 4-1: New USB device strings: Mfr=2, Product=3, SerialNumber=1 Mar 13 10:44:30 localhost kernel: usb 4-1: Product: GoFlex Desk Mar 13 10:44:30 localhost kernel: usb 4-1: Manufacturer: Seagate Mar 13 10:44:30 localhost kernel: usb 4-1: SerialNumber: NA0M3P3T Mar 13 10:44:30 localhost kernel: usbcore: registered new interface driver uas Mar 13 10:44:30 localhost kernel: usbcore: registered new interface driver libusual Mar 13 10:44:30 localhost kernel: Initializing USB Mass Storage driver... Mar 13 10:44:30 localhost kernel: scsi9 : usb-storage 4-1:1.0 Mar 13 10:44:30 localhost kernel: usbcore: registered new interface driver usb-storage Mar 13 10:44:30 localhost kernel: USB Mass Storage support registered. Mar 13 10:44:31 localhost kernel: scsi 9:0:0:0: Direct-Access Seagate GoFlex Desk 0D19 PQ: 0 ANSI: 5 Mar 13 10:44:31 localhost kernel: sd 9:0:0:0: Attached scsi generic sg9 type 0 Mar 13 10:44:31 localhost kernel: sd 9:0:0:0: [sdj] 732566645 4096-byte logical blocks: (3.00 TB/2.72 TiB) Mar 13 10:44:31 localhost kernel: sd 9:0:0:0: [sdj] Write Protect is off Mar 13 10:44:31 localhost kernel: sd 9:0:0:0: [sdj] Write cache: disabled, read cache: enabled, doesn't support DPO or FUA Mar 13 10:44:31 localhost kernel: sd 9:0:0:0: [sdj] 732566645 4096-byte logical blocks: (3.00 TB/2.72 TiB) Mar 13 10:44:31 localhost kernel: sdj: sdj1 Mar 13 10:44:31 localhost kernel: sd 9:0:0:0: [sdj] 732566645 4096-byte logical blocks: (3.00 TB/2.72 TiB) Mar 13 10:44:31 localhost kernel: sd 9:0:0:0: [sdj] Attached SCSI disk lsusb -vvv ---------- Bus 004 Device 004: ID 0bc2:50a5 Seagate RSS LLC Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 2.10 bDeviceClass 0 (Defined at Interface level) bDeviceSubClass 0 bDeviceProtocol 0 bMaxPacketSize0 64 idVendor 0x0bc2 Seagate RSS LLC idProduct 0x50a5 bcdDevice 1.00 iManufacturer 2 iProduct 3 iSerial 1 bNumConfigurations 1 Configuration Descriptor: bLength 9 bDescriptorType 2 wTotalLength 32 bNumInterfaces 1 bConfigurationValue 1 iConfiguration 0 bmAttributes 0xc0 Self Powered MaxPower 0mA Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 0 bAlternateSetting 0 bNumEndpoints 2 bInterfaceClass 8 Mass Storage bInterfaceSubClass 6 SCSI bInterfaceProtocol 80 Bulk (Zip) iInterface 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x81 EP 1 IN bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0200 1x 512 bytes bInterval 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x02 EP 2 OUT bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0200 1x 512 bytes bInterval 0 hdparm -I /dev/sdj: ------------------- Model Number: ST3000DM001-9YN166 Serial Number: S1F055ZZ Firmware Revision: CC9D Transport: Serial, SATA Rev 3.0 When I plugged into the USB-3.0 controller an USB-2.0 memory stick and USB-2.0 Epson scanner, I got no response in /var/log/messages and nothing new appeared in the listing of lsusb. Suggestions, ideas? Leonid -- 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