On 11/03/2011 04:41 PM, Gerd Hoffmann wrote:
On 11/03/11 07:01, hkran wrote:
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 ?
That is the root hub created by the linux kernel, not the hub emulated
by qemu. If you hook up just a single device no hob is needed.
cheers,
Gerd
Yes, it is. After I usb_add a storage a 8-port hub emulated is added :
lsusb
Bus 001 Device 004: ID 0000:7777
Bus 001 Device 003: ID 0000:0000
Bus 001 Device 002: ID 0627:0001 Adomax Technology Co., Ltd
Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Device 003 is the hub and Device 004 is my storage
lsusb -s 3 -v:
Bus 001 Device 003: 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 8
idVendor 0x0000
idProduct 0x0000
bcdDevice 1.01
iManufacturer 1 QEMU 0.15.50
iProduct 2 QEMU USB Hub
iSerial 3 314159
bNumConfigurations 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 10
bDescriptorType 41
nNbrPorts 8
wHubCharacteristic 0x000a
No power switching (usb 1.0)
Per-port overcurrent protection
bPwrOn2PwrGood 1 * 2 milli seconds
bHubContrCurrent 0 milli Ampere
DeviceRemovable 0x00 0x00
PortPwrCtrlMask 0xff 0x00
Hub Port Status:
Port 1: 0000.0103 power enable connect
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
Port 7: 0000.0100 power
Port 8: 0000.0100 power
Device Status: 0x0001
Self Powered
my storage is connected to the port 1.
after usb_del, all the hub port status will turn to power. how should i
do next to get it to be suspended?thanks.
