On Thu, Jun 25, 2009 at 07:53:29PM -0700, Alberto Gonzalez wrote: > On Friday 26 June 2009 00:51:18 Kok, Auke wrote: > > Alberto Gonzalez wrote: > > > Hi, > > > > > > I have a Dell Studio desktop with a USB mouse and keyboard. Until now, > > > every time I ran powertop it told me to enable USB auto-suspend by > > > pressing the U key. Doing so had no effect and it would continue to tell > > > me the same again and again. > > > > > > Now I have upgraded to kernel 2.6.30 (a distro kernel - Arch Linux) and > > > powertop tells me to enable USB auto-suspend too, the difference is that > > > now it does have an effect and the wakeups get reduced. The problem is > > > that I lose my mouse and keyboard. > > > > BAD BAD BAD > > > > You've found a piece of hardware that is broken. Please report the `lsusb > > -v` output and tell us which devices are affected. This way Sarah can maybe > > check and fix this upstream. I may not be able to fix it. There are many USB devices that break when autosuspend is enabled, and it's not the driver's fault. Please recompile your kernel with CONFIG_USB_DEBUG turned on (it's already turned on in most distros) and post the dmesg to the linux-usb mailing list. Oliver Neukum, who did the autosuspend patches for the USB HID driver, should be able to help you debug. It's interesting that you could suspend the keyboard and mouse at all, because I was under the assumption that X continually polls the mouse and keyboard. Are you running powertop at the console? > Well, as it usually happens, after reporting something you can't reproduce the > exact same behavior :( However, something does happen: after pressing the U > key at powertop's suggestion I do lose my mouse and can't get it back. But now > I can't seem to lose the keyboard as it happened to me before, and so USB > remains active and the wakeups reported remain the same. > > What I did notice is that the value of > /sys/bus/usb/devices/.../power/autosuspend is 0 for all my devices. After an > echo 10 on my mouse device I could get it back to life with a left click, and > from that point auto-suspend works as expected (after 10 seconds my mouse goes > to sleep and I can wake it up with a click). Does it wakeup with a left click if you set the autosuspend file to 1 or 2? 2 seconds is the default for that file, and powertop really shouldn't try to set it to 0 seconds. > However, this doesn't work with > my keyboard or optical drive (which is the other USB device I have), those > remain active 100% of the time. The optical drive is a mass storage device, and there is no autosuspend patch for that driver. > Which value does the U key in powertop touch to enable USB auto-suspend? It has to set the power/level file to auto to enable autosuspend. My guess is that it also sets the power/autosuspend file to 0. Sarah > Here's the output of lsusb -v > > Bus 005 Device 003: ID 413c:3012 Dell Computer Corp. Optical Wheel Mouse > Device Descriptor: > bLength 18 > bDescriptorType 1 > bcdUSB 2.00 > bDeviceClass 0 (Defined at Interface level) > bDeviceSubClass 0 > bDeviceProtocol 0 > bMaxPacketSize0 8 > idVendor 0x413c Dell Computer Corp. > idProduct 0x3012 Optical Wheel Mouse > bcdDevice 43.01 > iManufacturer 1 Dell > iProduct 2 Dell USB Optical Mouse > iSerial 0 > bNumConfigurations 1 > Configuration Descriptor: > bLength 9 > bDescriptorType 2 > wTotalLength 34 > bNumInterfaces 1 > bConfigurationValue 1 > iConfiguration 0 > bmAttributes 0xa0 > (Bus Powered) > Remote Wakeup > MaxPower 100mA > Interface Descriptor: > bLength 9 > bDescriptorType 4 > bInterfaceNumber 0 > bAlternateSetting 0 > bNumEndpoints 1 > bInterfaceClass 3 Human Interface Device > bInterfaceSubClass 1 Boot Interface Subclass > bInterfaceProtocol 2 Mouse > iInterface 0 > ** UNRECOGNIZED: 09 21 11 01 00 01 22 34 00 > Endpoint Descriptor: > bLength 7 > bDescriptorType 5 > bEndpointAddress 0x81 EP 1 IN > bmAttributes 3 > Transfer Type Interrupt > Synch Type None > Usage Type Data > wMaxPacketSize 0x0005 1x 5 bytes > bInterval 10 > Device Status: 0x0000 > (Bus Powered) > > Bus 005 Device 002: ID 0d62:2106 Darfon Electronics Corp. > Device Descriptor: > bLength 18 > bDescriptorType 1 > bcdUSB 1.10 > bDeviceClass 0 (Defined at Interface level) > bDeviceSubClass 0 > bDeviceProtocol 0 > bMaxPacketSize0 8 > idVendor 0x0d62 Darfon Electronics Corp. > idProduct 0x2106 > bcdDevice 4.50 > iManufacturer 0 > iProduct 1 USB Multimedia Keyboard > iSerial 0 > bNumConfigurations 1 > Configuration Descriptor: > bLength 9 > bDescriptorType 2 > wTotalLength 59 > bNumInterfaces 2 > bConfigurationValue 1 > iConfiguration 0 > bmAttributes 0xa0 > (Bus Powered) > Remote Wakeup > MaxPower 70mA > Interface Descriptor: > bLength 9 > bDescriptorType 4 > bInterfaceNumber 0 > bAlternateSetting 0 > bNumEndpoints 1 > bInterfaceClass 3 Human Interface Device > bInterfaceSubClass 1 Boot Interface Subclass > bInterfaceProtocol 1 Keyboard > iInterface 0 > ** UNRECOGNIZED: 09 21 10 01 00 01 22 41 00 > Endpoint Descriptor: > bLength 7 > bDescriptorType 5 > bEndpointAddress 0x81 EP 1 IN > bmAttributes 3 > Transfer Type Interrupt > Synch Type None > Usage Type Data > wMaxPacketSize 0x0008 1x 8 bytes > bInterval 10 > Interface Descriptor: > bLength 9 > bDescriptorType 4 > bInterfaceNumber 1 > bAlternateSetting 0 > bNumEndpoints 1 > bInterfaceClass 3 Human Interface Device > bInterfaceSubClass 0 No Subclass > bInterfaceProtocol 0 None > iInterface 0 > ** UNRECOGNIZED: 09 21 10 01 00 01 22 44 00 > Endpoint Descriptor: > bLength 7 > bDescriptorType 5 > bEndpointAddress 0x82 EP 2 IN > bmAttributes 3 > Transfer Type Interrupt > Synch Type None > Usage Type Data > wMaxPacketSize 0x0008 1x 8 bytes > bInterval 10 > Device Status: 0x0000 > (Bus Powered) > > Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub > 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 0x1d6b Linux Foundation > idProduct 0x0001 1.1 root hub > bcdDevice 2.06 > iManufacturer 3 Linux 2.6.30-ARCH uhci_hcd > iProduct 2 UHCI Host Controller > iSerial 1 0000:00:1a.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 0x00 > PortPwrCtrlMask 0xff > Hub Port Status: > Port 1: 0000.0303 lowspeed power enable connect > Port 2: 0000.0303 lowspeed power enable connect > Device Status: 0x0003 > Self Powered > Remote Wakeup Enabled > > Bus 008 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub > 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 0x1d6b Linux Foundation > idProduct 0x0001 1.1 root hub > bcdDevice 2.06 > iManufacturer 3 Linux 2.6.30-ARCH 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 0x00 > PortPwrCtrlMask 0xff > Hub Port Status: > Port 1: 0000.0100 power > Port 2: 0000.0100 power > Device Status: 0x0003 > Self Powered > Remote Wakeup Enabled > > Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub > 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 0x1d6b Linux Foundation > idProduct 0x0001 1.1 root hub > bcdDevice 2.06 > iManufacturer 3 Linux 2.6.30-ARCH 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 0x00 > PortPwrCtrlMask 0xff > Hub Port Status: > Port 1: 0000.0100 power > Port 2: 0000.0100 power > Device Status: 0x0003 > Self Powered > Remote Wakeup Enabled > > Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub > Device Descriptor: > bLength 18 > bDescriptorType 1 > bcdUSB 2.00 > bDeviceClass 9 Hub > bDeviceSubClass 0 Unused > bDeviceProtocol 0 Full speed (or root) hub > bMaxPacketSize0 64 > idVendor 0x1d6b Linux Foundation > idProduct 0x0002 2.0 root hub > bcdDevice 2.06 > iManufacturer 3 Linux 2.6.30-ARCH ehci_hcd > iProduct 2 EHCI Host Controller > iSerial 1 0000:00:1a.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 > bPwrOn2PwrGood 10 * 2 milli seconds > bHubContrCurrent 0 milli Ampere > DeviceRemovable 0x00 > PortPwrCtrlMask 0xff > 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 > Device Status: 0x0003 > Self Powered > Remote Wakeup Enabled > > Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub > 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 0x1d6b Linux Foundation > idProduct 0x0001 1.1 root hub > bcdDevice 2.06 > iManufacturer 3 Linux 2.6.30-ARCH uhci_hcd > iProduct 2 UHCI Host Controller > iSerial 1 0000:00:1a.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 0x00 > PortPwrCtrlMask 0xff > Hub Port Status: > Port 1: 0000.0100 power > Port 2: 0000.0100 power > Device Status: 0x0003 > Self Powered > Remote Wakeup Enabled > > Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub > 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 0x1d6b Linux Foundation > idProduct 0x0001 1.1 root hub > bcdDevice 2.06 > iManufacturer 3 Linux 2.6.30-ARCH uhci_hcd > iProduct 2 UHCI Host Controller > iSerial 1 0000:00:1a.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 0x00 > PortPwrCtrlMask 0xff > Hub Port Status: > Port 1: 0000.0100 power > Port 2: 0000.0100 power > Device Status: 0x0003 > Self Powered > Remote Wakeup Enabled > > Bus 007 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub > 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 0x1d6b Linux Foundation > idProduct 0x0001 1.1 root hub > bcdDevice 2.06 > iManufacturer 3 Linux 2.6.30-ARCH 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 0x00 > PortPwrCtrlMask 0xff > Hub Port Status: > Port 1: 0000.0100 power > Port 2: 0000.0100 power > Device Status: 0x0003 > Self Powered > Remote Wakeup Enabled > > Bus 002 Device 002: ID 0bda:0151 Realtek Semiconductor Corp. Mass Stroage > Device > Device Descriptor: > bLength 18 > bDescriptorType 1 > bcdUSB 2.00 > bDeviceClass 0 (Defined at Interface level) > bDeviceSubClass 0 > bDeviceProtocol 0 > bMaxPacketSize0 64 > idVendor 0x0bda Realtek Semiconductor Corp. > idProduct 0x0151 Mass Stroage Device > bcdDevice 51.95 > iManufacturer 1 Generic > iProduct 2 USB2.0-CRW > iSerial 3 20060413092100000 > bNumConfigurations 1 > Configuration Descriptor: > bLength 9 > bDescriptorType 2 > wTotalLength 32 > bNumInterfaces 1 > bConfigurationValue 1 > iConfiguration 4 CARD READER > bmAttributes 0x80 > (Bus Powered) > MaxPower 500mA > Interface Descriptor: > bLength 9 > bDescriptorType 4 > bInterfaceNumber 0 > bAlternateSetting 0 > bNumEndpoints 2 > bInterfaceClass 8 Mass Storage > bInterfaceSubClass 6 SCSI > bInterfaceProtocol 80 Bulk (Zip) > iInterface 5 Bulk-In, Bulk-Out, Interface > Endpoint Descriptor: > bLength 7 > bDescriptorType 5 > bEndpointAddress 0x01 EP 1 OUT > 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 0x82 EP 2 IN > bmAttributes 2 > Transfer Type Bulk > Synch Type None > Usage Type Data > wMaxPacketSize 0x0200 1x 512 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 > Device Status: 0x0000 > (Bus Powered) > > Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub > Device Descriptor: > bLength 18 > bDescriptorType 1 > bcdUSB 2.00 > bDeviceClass 9 Hub > bDeviceSubClass 0 Unused > bDeviceProtocol 0 Full speed (or root) hub > bMaxPacketSize0 64 > idVendor 0x1d6b Linux Foundation > idProduct 0x0002 2.0 root hub > bcdDevice 2.06 > iManufacturer 3 Linux 2.6.30-ARCH 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 > bPwrOn2PwrGood 10 * 2 milli seconds > bHubContrCurrent 0 milli Ampere > DeviceRemovable 0x00 > PortPwrCtrlMask 0xff > Hub Port Status: > Port 1: 0000.0100 power > Port 2: 0000.0100 power > Port 3: 0000.0503 highspeed power enable connect > Port 4: 0000.0100 power > Port 5: 0000.0100 power > Port 6: 0000.0100 power > Device Status: 0x0003 > Self Powered > Remote Wakeup Enabled > -- 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
