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From: | hkran |
Subject: | Re: [Qemu-devel] [PATCH 1/3] usb-hub: wakeup on attach |
Date: | Thu, 03 Nov 2011 14:01:55 +0800 |
User-agent: | Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.2.18) Gecko/20110617 Red Hat/3.1.11-2.el6_1 Thunderbird/3.1.11 |
On 11/02/2011 08:56 PM, Gerd Hoffmann wrote:
I use the param "-usb -usbdevice tablet" to start qemu and then usb_del tablet via monitor console after getting qemu up.Hi,static void usb_hub_detach(USBPort *port1)pulled, In what cases, the usb hub will be suspended? and how to tell it happened? thanks.The guest enables the remote-wakeup feature. 'lspci -v' (within the guest) shows it. cheers, Gerd
I saw this by entering lsusb -v Bus 001 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 2.6.32-131.0.15.el6.x86_64 uhci_hcd iProduct 2 UHCI Host Controller iSerial 1 0000:00:01.2 .......................... 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 (It seems that the Remote-wakeup feature has been enabled)There are two ports with the status "power", and I do not know how to make it suspended yet. Can you help more ?
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