Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S936545AbXFGUXw (ORCPT ); Thu, 7 Jun 2007 16:23:52 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S934988AbXFGUXa (ORCPT ); Thu, 7 Jun 2007 16:23:30 -0400 Received: from ug-out-1314.google.com ([66.249.92.172]:19060 "EHLO ug-out-1314.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S934177AbXFGUX1 (ORCPT ); Thu, 7 Jun 2007 16:23:27 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=beta; h=received:message-id:date:from:user-agent:mime-version:to:cc:subject:content-type:content-transfer-encoding; b=QKez12DeH4mY98I0naUFVbMNbhKO2tduHLqbOAP7DKvkL3DbpT5edMkJM8n40C9eHn4N3xOIrxbjyYBIzmNyzciZrecJeUttY3lB9gdQHkgArDMa1T23Dvm1wDioAbEqC24FfkU+rFPk8fPbd+GBck7lRAS8QaaltmSyAXXgWpo= Message-ID: <46686937.9050306@gmail.com> Date: Thu, 07 Jun 2007 22:23:19 +0200 From: Robert de Rooy User-Agent: Thunderbird 2.0.0.0 (Windows/20070326) MIME-Version: 1.0 To: linux-kernel@vger.kernel.org CC: greg@kroah.com Subject: ThinkPad T41 - Strange USB 2.0 behaviour Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 31005 Lines: 859 Hi, On my ThinkPad T41 USB 2.0 behaves strange. Most USB 2.0 devices, refuse to function as such. Under Windows I get a message that I should plug the device into a USB 2.0 port (but it continues to function as USB 1.1), while under Linux I need to manually unload ehci-hcd before I can access the device. The strange thing is that these USB 2.0 devices used to work just fine, and still do on other machines. In addition I have one USB 2.0 memory key that still works fine (both under Windows and Linux). Now to be honest, I think this is a hardware problem, as I have had another T41p before that also suddenly no longer liked USB 2.0 devices, and if you search with Google you find other ThinkPad T41 users complaining about similar behaviour. As such I don't really expect a fix for this (presumably) hardware issue, but what I would like is that Linux would drop back to USB 1.1 like Windows does, if for some reason USB 2.0 does not function (clearly with an appropriate message in at least syslog, perhaps even some notification with DBUS if possible). ** lspci data of USB controlers 00:1d.0 USB Controller: Intel Corporation 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) USB UHCI Controller #1 (rev 01) (prog-if 00 [UHCI]) Subsystem: IBM Thinkpad R50e model 1634 Flags: bus master, medium devsel, latency 0, IRQ 11 I/O ports at 1800 [size=32] 00: 86 80 c2 24 05 00 80 02 01 00 03 0c 00 00 80 00 10: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 20: 01 18 00 00 00 00 00 00 00 00 00 00 14 10 2d 05 30: 00 00 00 00 00 00 00 00 00 00 00 00 0b 01 00 00 40: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 50: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 60: 10 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 70: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 90: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 c0: 00 2f 00 00 00 00 00 00 00 00 00 00 00 00 00 00 d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 f0: 00 00 00 00 00 00 00 00 60 0f 00 00 00 00 00 00 00:1d.1 USB Controller: Intel Corporation 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) USB UHCI Controller #2 (rev 01) (prog-if 00 [UHCI]) Subsystem: IBM Thinkpad R50e model 1634 Flags: bus master, medium devsel, latency 0, IRQ 11 I/O ports at 1820 [size=32] 00: 86 80 c4 24 05 00 80 02 01 00 03 0c 00 00 00 00 10: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 20: 21 18 00 00 00 00 00 00 00 00 00 00 14 10 2d 05 30: 00 00 00 00 00 00 00 00 00 00 00 00 0b 02 00 00 40: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 50: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 60: 10 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 70: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 90: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 c0: 00 2f 00 00 00 00 00 00 00 00 00 00 00 00 00 00 d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 f0: 00 00 00 00 00 00 00 00 60 0f 00 00 00 00 00 00 00:1d.2 USB Controller: Intel Corporation 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) USB UHCI Controller #3 (rev 01) (prog-if 00 [UHCI]) Subsystem: IBM Thinkpad R50e model 1634 Flags: bus master, medium devsel, latency 0, IRQ 11 I/O ports at 1840 [size=32] 00: 86 80 c7 24 05 00 80 02 01 00 03 0c 00 00 00 00 10: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 20: 41 18 00 00 00 00 00 00 00 00 00 00 14 10 2d 05 30: 00 00 00 00 00 00 00 00 00 00 00 00 0b 03 00 00 40: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 50: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 60: 10 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 70: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 90: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 c0: 00 2f 00 00 00 00 00 00 00 00 00 00 00 00 00 00 d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 f0: 00 00 00 00 00 00 00 00 60 0f 00 00 00 00 00 00 00:1d.7 USB Controller: Intel Corporation 82801DB/DBM (ICH4/ICH4-M) USB2 EHCI Controller (rev 01) (prog-if 20 [EHCI]) Subsystem: IBM Thinkpad R50e model 1634 Flags: bus master, medium devsel, latency 0, IRQ 11 Memory at c0000000 (32-bit, non-prefetchable) [size=1K] Capabilities: [50] Power Management version 2 Capabilities: [58] Debug port 00: 86 80 cd 24 06 01 90 02 01 20 03 0c 00 00 00 00 10: 00 00 00 c0 00 00 00 00 00 00 00 00 00 00 00 00 20: 00 00 00 00 00 00 00 00 00 00 00 00 14 10 2e 05 30: 00 00 00 00 50 00 00 00 00 00 00 00 0b 04 00 00 40: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 50: 01 58 c2 c9 00 00 00 00 0a 00 80 20 00 00 00 00 60: 20 20 1f 00 00 00 00 00 01 00 00 00 00 00 08 c0 70: 00 00 c7 0f 00 00 00 00 00 00 00 00 00 00 00 00 80: 00 00 00 00 01 00 00 00 00 00 00 00 00 00 00 00 90: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 d0: 00 00 00 00 00 00 00 00 00 00 00 00 20 00 3f 00 e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 f0: 78 bf 1f 00 88 83 00 00 60 0f 00 00 06 00 00 00 **errors in syslog when plugging in most USB 2.0 devices with ehci-hcd loaded (these continue until I remove the device) Jun 7 21:41:27 localhost kernel: usb 4-4: new high speed USB device using ehci_hcd and address 11 Jun 7 21:41:27 localhost kernel: usb 4-4: new high speed USB device using ehci_hcd and address 13 Jun 7 21:41:28 localhost kernel: usb 4-4: new high speed USB device using ehci_hcd and address 18 Jun 7 21:41:32 localhost kernel: usb 4-4: new high speed USB device using ehci_hcd and address 39 Jun 7 21:41:35 localhost kernel: usb 4-4: new high speed USB device using ehci_hcd and address 60 Jun 7 21:41:36 localhost kernel: usb 4-4: new high speed USB device using ehci_hcd and address 64 Jun 7 21:41:57 localhost kernel: usb 4-4: new high speed USB device using ehci_hcd and address 91 Jun 7 21:42:01 localhost kernel: usb 4-4: new high speed USB device using ehci_hcd and address 111 **messages in syslog when plugging the only USB 2.0 device I have that actually works as such (with ehci-hcd loaded) Jun 7 21:43:04 localhost kernel: usb 2-2: new full speed USB device using uhci_hcd and address 2 Jun 7 21:43:04 localhost kernel: usb 2-2: configuration #1 chosen from 1 choiceJun 7 21:43:05 localhost kernel: Initializing USB Mass Storage driver... Jun 7 21:43:05 localhost kernel: scsi2 : SCSI emulation for USB Mass Storage devices Jun 7 21:43:05 localhost kernel: usbcore: registered new interface driver usb-storage Jun 7 21:43:05 localhost kernel: USB Mass Storage support registered. Jun 7 21:43:10 localhost kernel: scsi 2:0:0:0: Direct-Access IBM Memory Key 3.52 PQ: 0 ANSI: 0 CCS Jun 7 21:43:10 localhost kernel: sd 2:0:0:0: [sdc] 499712 512-byte hardware sectors (256 MB) Jun 7 21:43:10 localhost kernel: sd 2:0:0:0: [sdc] Write Protect is off Jun 7 21:43:10 localhost kernel: sd 2:0:0:0: [sdc] Assuming drive cache: write through Jun 7 21:43:10 localhost kernel: sd 2:0:0:0: [sdc] 499712 512-byte hardware sectors (256 MB) Jun 7 21:43:10 localhost kernel: sd 2:0:0:0: [sdc] Write Protect is off Jun 7 21:43:10 localhost kernel: sd 2:0:0:0: [sdc] Assuming drive cache: write through Jun 7 21:43:10 localhost kernel: sdc: sdc1 Jun 7 21:43:10 localhost kernel: sd 2:0:0:0: [sdc] Attached SCSI removable diskJun 7 21:43:10 localhost kernel: sd 2:0:0:0: Attached scsi generic sg2 type 0 **lsusb output from working USB 2.0 device (with ehci-hcd loaded) Bus 004 Device 001: ID 0000:0000 Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 2.00 bDeviceClass 9 Hub bDeviceSubClass 0 Unused bDeviceProtocol 1 Single TT bMaxPacketSize0 64 idVendor 0x0000 idProduct 0x0000 bcdDevice 2.06 iManufacturer 3 Linux 2.6.22-rc4 ehci_hcd iProduct 2 EHCI Host Controller iSerial 1 0000:00:1d.7 bNumConfigurations 1 Configuration Descriptor: bLength 9 bDescriptorType 2 wTotalLength 25 bNumInterfaces 1 bConfigurationValue 1 iConfiguration 0 bmAttributes 0xe0 Self Powered Remote Wakeup MaxPower 0mA Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 0 bAlternateSetting 0 bNumEndpoints 1 bInterfaceClass 9 Hub bInterfaceSubClass 0 Unused bInterfaceProtocol 0 Full speed (or root) hub iInterface 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x81 EP 1 IN bmAttributes 3 Transfer Type Interrupt Synch Type None Usage Type Data wMaxPacketSize 0x0004 1x 4 bytes bInterval 12 Hub Descriptor: bLength 9 bDescriptorType 41 nNbrPorts 6 wHubCharacteristic 0x000a No power switching (usb 1.0) Per-port overcurrent protection TT think time 8 FS bits bPwrOn2PwrGood 10 * 2 milli seconds bHubContrCurrent 0 milli Ampere DeviceRemovable 0xc0 PortPwrCtrlMask 0x06 Hub Port Status: Port 1: 0000.0100 power Port 2: 0000.0100 power Port 3: 0000.0100 power Port 4: 0000.0100 power Port 5: 0000.0100 power Port 6: 0000.0100 power Bus 003 Device 001: ID 0000:0000 Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 1.10 bDeviceClass 9 Hub bDeviceSubClass 0 Unused bDeviceProtocol 0 Full speed (or root) hub bMaxPacketSize0 64 idVendor 0x0000 idProduct 0x0000 bcdDevice 2.06 iManufacturer 3 Linux 2.6.22-rc4 uhci_hcd iProduct 2 UHCI Host Controller iSerial 1 0000:00:1d.2 bNumConfigurations 1 Configuration Descriptor: bLength 9 bDescriptorType 2 wTotalLength 25 bNumInterfaces 1 bConfigurationValue 1 iConfiguration 0 bmAttributes 0xe0 Self Powered Remote Wakeup MaxPower 0mA Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 0 bAlternateSetting 0 bNumEndpoints 1 bInterfaceClass 9 Hub bInterfaceSubClass 0 Unused bInterfaceProtocol 0 Full speed (or root) hub iInterface 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x81 EP 1 IN bmAttributes 3 Transfer Type Interrupt Synch Type None Usage Type Data wMaxPacketSize 0x0002 1x 2 bytes bInterval 255 Hub Descriptor: bLength 9 bDescriptorType 41 nNbrPorts 2 wHubCharacteristic 0x000a No power switching (usb 1.0) Per-port overcurrent protection bPwrOn2PwrGood 1 * 2 milli seconds bHubContrCurrent 0 milli Ampere DeviceRemovable 0xc0 PortPwrCtrlMask 0x06 Hub Port Status: Port 1: 0000.0100 power Port 2: 0000.0100 power Bus 002 Device 002: ID 08ec:0011 M-Systems Flash Disk Pioneers Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 2.00 bDeviceClass 0 (Defined at Interface level) bDeviceSubClass 0 bDeviceProtocol 0 bMaxPacketSize0 64 idVendor 0x08ec M-Systems Flash Disk Pioneers idProduct 0x0011 bcdDevice 2.00 iManufacturer 1 IBM iProduct 2 USB 2.0 Memory Key iSerial 3 0212840B040085F0 bNumConfigurations 1 Configuration Descriptor: bLength 9 bDescriptorType 2 wTotalLength 32 bNumInterfaces 1 bConfigurationValue 1 iConfiguration 0 bmAttributes 0x80 MaxPower 94mA 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 0x82 EP 2 IN bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0040 1x 64 bytes bInterval 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x01 EP 1 OUT bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0040 1x 64 bytes bInterval 0 Bus 002 Device 001: ID 0000:0000 Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 1.10 bDeviceClass 9 Hub bDeviceSubClass 0 Unused bDeviceProtocol 0 Full speed (or root) hub bMaxPacketSize0 64 idVendor 0x0000 idProduct 0x0000 bcdDevice 2.06 iManufacturer 3 Linux 2.6.22-rc4 uhci_hcd iProduct 2 UHCI Host Controller iSerial 1 0000:00:1d.1 bNumConfigurations 1 Configuration Descriptor: bLength 9 bDescriptorType 2 wTotalLength 25 bNumInterfaces 1 bConfigurationValue 1 iConfiguration 0 bmAttributes 0xe0 Self Powered Remote Wakeup MaxPower 0mA Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 0 bAlternateSetting 0 bNumEndpoints 1 bInterfaceClass 9 Hub bInterfaceSubClass 0 Unused bInterfaceProtocol 0 Full speed (or root) hub iInterface 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x81 EP 1 IN bmAttributes 3 Transfer Type Interrupt Synch Type None Usage Type Data wMaxPacketSize 0x0002 1x 2 bytes bInterval 255 Hub Descriptor: bLength 9 bDescriptorType 41 nNbrPorts 2 wHubCharacteristic 0x000a No power switching (usb 1.0) Per-port overcurrent protection bPwrOn2PwrGood 1 * 2 milli seconds bHubContrCurrent 0 milli Ampere DeviceRemovable 0xc0 PortPwrCtrlMask 0x06 Hub Port Status: Port 1: 0000.0100 power Port 2: 0000.0103 power enable connect Bus 001 Device 001: ID 0000:0000 Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 1.10 bDeviceClass 9 Hub bDeviceSubClass 0 Unused bDeviceProtocol 0 Full speed (or root) hub bMaxPacketSize0 64 idVendor 0x0000 idProduct 0x0000 bcdDevice 2.06 iManufacturer 3 Linux 2.6.22-rc4 uhci_hcd iProduct 2 UHCI Host Controller iSerial 1 0000:00:1d.0 bNumConfigurations 1 Configuration Descriptor: bLength 9 bDescriptorType 2 wTotalLength 25 bNumInterfaces 1 bConfigurationValue 1 iConfiguration 0 bmAttributes 0xe0 Self Powered Remote Wakeup MaxPower 0mA Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 0 bAlternateSetting 0 bNumEndpoints 1 bInterfaceClass 9 Hub bInterfaceSubClass 0 Unused bInterfaceProtocol 0 Full speed (or root) hub iInterface 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x81 EP 1 IN bmAttributes 3 Transfer Type Interrupt Synch Type None Usage Type Data wMaxPacketSize 0x0002 1x 2 bytes bInterval 255 Hub Descriptor: bLength 9 bDescriptorType 41 nNbrPorts 2 wHubCharacteristic 0x000a No power switching (usb 1.0) Per-port overcurrent protection bPwrOn2PwrGood 1 * 2 milli seconds bHubContrCurrent 0 milli Ampere DeviceRemovable 0xc0 PortPwrCtrlMask 0x06 Hub Port Status: Port 1: 0000.0100 power Port 2: 0000.0100 power **lsusb output from USB 2.0 devices that does not work with the ehci-hcd driver loaded (cannot even see it with lsusb until ehci-hcd is unloaded) ** 128MB USB key Bus 003 Device 001: ID 0000:0000 Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 1.10 bDeviceClass 9 Hub bDeviceSubClass 0 Unused bDeviceProtocol 0 Full speed (or root) hub bMaxPacketSize0 64 idVendor 0x0000 idProduct 0x0000 bcdDevice 2.06 iManufacturer 3 Linux 2.6.22-rc4 uhci_hcd iProduct 2 UHCI Host Controller iSerial 1 0000:00:1d.2 bNumConfigurations 1 Configuration Descriptor: bLength 9 bDescriptorType 2 wTotalLength 25 bNumInterfaces 1 bConfigurationValue 1 iConfiguration 0 bmAttributes 0xe0 Self Powered Remote Wakeup MaxPower 0mA Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 0 bAlternateSetting 0 bNumEndpoints 1 bInterfaceClass 9 Hub bInterfaceSubClass 0 Unused bInterfaceProtocol 0 Full speed (or root) hub iInterface 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x81 EP 1 IN bmAttributes 3 Transfer Type Interrupt Synch Type None Usage Type Data wMaxPacketSize 0x0002 1x 2 bytes bInterval 255 Hub Descriptor: bLength 9 bDescriptorType 41 nNbrPorts 2 wHubCharacteristic 0x000a No power switching (usb 1.0) Per-port overcurrent protection bPwrOn2PwrGood 1 * 2 milli seconds bHubContrCurrent 0 milli Ampere DeviceRemovable 0xc0 PortPwrCtrlMask 0xf6 Hub Port Status: Port 1: 0000.0100 power Port 2: 0000.0100 power Bus 002 Device 003: ID 0a16:9989 Trek Technology (S) PTE, Ltd Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 1.10 bDeviceClass 0 (Defined at Interface level) bDeviceSubClass 0 bDeviceProtocol 0 bMaxPacketSize0 64 idVendor 0x0a16 Trek Technology (S) PTE, Ltd idProduct 0x9989 bcdDevice 1.00 iManufacturer 1 IBM iProduct 2 IBM USB Memory Key iSerial 0 bNumConfigurations 1 Configuration Descriptor: bLength 9 bDescriptorType 2 wTotalLength 32 bNumInterfaces 1 bConfigurationValue 1 iConfiguration 3 0A160A1660A166 bmAttributes 0x80 MaxPower 100mA 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 0x01 EP 1 OUT bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0040 1x 64 bytes bInterval 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x82 EP 2 IN bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0040 1x 64 bytes bInterval 0 Bus 002 Device 001: ID 0000:0000 Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 1.10 bDeviceClass 9 Hub bDeviceSubClass 0 Unused bDeviceProtocol 0 Full speed (or root) hub bMaxPacketSize0 64 idVendor 0x0000 idProduct 0x0000 bcdDevice 2.06 iManufacturer 3 Linux 2.6.22-rc4 uhci_hcd iProduct 2 UHCI Host Controller iSerial 1 0000:00:1d.1 bNumConfigurations 1 Configuration Descriptor: bLength 9 bDescriptorType 2 wTotalLength 25 bNumInterfaces 1 bConfigurationValue 1 iConfiguration 0 bmAttributes 0xe0 Self Powered Remote Wakeup MaxPower 0mA Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 0 bAlternateSetting 0 bNumEndpoints 1 bInterfaceClass 9 Hub bInterfaceSubClass 0 Unused bInterfaceProtocol 0 Full speed (or root) hub iInterface 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x81 EP 1 IN bmAttributes 3 Transfer Type Interrupt Synch Type None Usage Type Data wMaxPacketSize 0x0002 1x 2 bytes bInterval 255 Hub Descriptor: bLength 9 bDescriptorType 41 nNbrPorts 2 wHubCharacteristic 0x000a No power switching (usb 1.0) Per-port overcurrent protection bPwrOn2PwrGood 1 * 2 milli seconds bHubContrCurrent 0 milli Ampere DeviceRemovable 0xc0 PortPwrCtrlMask 0xf6 Hub Port Status: Port 1: 0000.0100 power Port 2: 0000.0103 power enable connect Bus 001 Device 001: ID 0000:0000 Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 1.10 bDeviceClass 9 Hub bDeviceSubClass 0 Unused bDeviceProtocol 0 Full speed (or root) hub bMaxPacketSize0 64 idVendor 0x0000 idProduct 0x0000 bcdDevice 2.06 iManufacturer 3 Linux 2.6.22-rc4 uhci_hcd iProduct 2 UHCI Host Controller iSerial 1 0000:00:1d.0 bNumConfigurations 1 Configuration Descriptor: bLength 9 bDescriptorType 2 wTotalLength 25 bNumInterfaces 1 bConfigurationValue 1 iConfiguration 0 bmAttributes 0xe0 Self Powered Remote Wakeup MaxPower 0mA Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 0 bAlternateSetting 0 bNumEndpoints 1 bInterfaceClass 9 Hub bInterfaceSubClass 0 Unused bInterfaceProtocol 0 Full speed (or root) hub iInterface 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x81 EP 1 IN bmAttributes 3 Transfer Type Interrupt Synch Type None Usage Type Data wMaxPacketSize 0x0002 1x 2 bytes bInterval 255 Hub Descriptor: bLength 9 bDescriptorType 41 nNbrPorts 2 wHubCharacteristic 0x000a No power switching (usb 1.0) Per-port overcurrent protection bPwrOn2PwrGood 1 * 2 milli seconds bHubContrCurrent 0 milli Ampere DeviceRemovable 0xc0 PortPwrCtrlMask 0xf6 Hub Port Status: Port 1: 0000.0100 power Port 2: 0000.0100 power ** USB DVD-RW (output cut to only contain the actual device) Bus 001 Device 002: ID 0409:0056 NEC Corp. Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 2.00 bDeviceClass 0 (Defined at Interface level) bDeviceSubClass 0 bDeviceProtocol 0 bMaxPacketSize0 64 idVendor 0x0409 NEC Corp. idProduct 0x0056 bcdDevice 0.00 iManufacturer 1 TSST corp iProduct 2 USB Mass Storage Device iSerial 3 000000000001 bNumConfigurations 1 Configuration Descriptor: bLength 9 bDescriptorType 2 wTotalLength 32 bNumInterfaces 1 bConfigurationValue 1 iConfiguration 0 bmAttributes 0xc0 Self Powered MaxPower 2mA Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 0 bAlternateSetting 0 bNumEndpoints 2 bInterfaceClass 8 Mass Storage bInterfaceSubClass 5 SFF-8070i bInterfaceProtocol 80 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 0x0040 1x 64 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 0x0040 1x 64 bytes bInterval 0 Device Qualifier (for other device speed): bLength 10 bDescriptorType 6 bcdUSB 2.00 bDeviceClass 0 (Defined at Interface level) bDeviceSubClass 0 bDeviceProtocol 0 bMaxPacketSize0 64 bNumConfigurations 1 ** USB HDD (output cut to only contain the actual device) Bus 002 Device 004: ID 04cf:8818 Myson Century, Inc. Fast 3.5" External Storage Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 2.00 bDeviceClass 0 (Defined at Interface level) bDeviceSubClass 0 bDeviceProtocol 0 bMaxPacketSize0 64 idVendor 0x04cf Myson Century, Inc. idProduct 0x8818 Fast 3.5" External Storage bcdDevice b0.07 iManufacturer 1 Myson Century, Inc. iProduct 2 USB Mass Storage Device iSerial 3 100 bNumConfigurations 1 Configuration Descriptor: bLength 9 bDescriptorType 2 wTotalLength 32 bNumInterfaces 1 bConfigurationValue 1 iConfiguration 4 USB Mass Storage bmAttributes 0xc0 Self Powered MaxPower 10mA Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 0 bAlternateSetting 0 bNumEndpoints 2 bInterfaceClass 8 Mass Storage bInterfaceSubClass 5 SFF-8070i bInterfaceProtocol 80 iInterface 5 Mass Storage Class Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x03 EP 3 OUT bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0040 1x 64 bytes bInterval 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x84 EP 4 IN bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0040 1x 64 bytes bInterval 0 Device Qualifier (for other device speed): bLength 10 bDescriptorType 6 bcdUSB 2.00 bDeviceClass 0 (Defined at Interface level) bDeviceSubClass 0 bDeviceProtocol 0 bMaxPacketSize0 64 bNumConfigurations 1 - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/