On 11/02/2011 08:56 PM, Gerd Hoffmann wrote:
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 use the param "-usb -usbdevice tablet" to start qemu and then usb_del
tablet via monitor console after getting qemu up.
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 ?
