From: hkran <hkran@linux.vnet.ibm.com>
To: Gerd Hoffmann <kraxel@redhat.com>
Cc: hkran <hkran@vnet.linux.ibm.com>, qemu-devel@nongnu.org
Subject: Re: [Qemu-devel] [PATCH 1/3] usb-hub: wakeup on attach
Date: Thu, 03 Nov 2011 14:01:55 +0800 [thread overview]
Message-ID: <4EB22E53.7020905@linux.vnet.ibm.com> (raw)
In-Reply-To: <4EB13DF8.2080509@redhat.com>
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 ?
next prev parent reply other threads:[~2011-11-03 6:03 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-11-01 14:56 [Qemu-devel] [PULL] usb patch queue Gerd Hoffmann
2011-11-01 14:56 ` [Qemu-devel] [PATCH 1/3] usb-hub: wakeup on attach Gerd Hoffmann
2011-11-02 9:38 ` hkran
2011-11-02 12:56 ` Gerd Hoffmann
2011-11-03 6:01 ` hkran [this message]
2011-11-03 8:41 ` Gerd Hoffmann
2011-11-03 9:20 ` hkran
2011-11-10 3:45 ` hkran
2011-11-22 12:23 ` Gerd Hoffmann
2011-11-01 14:56 ` [Qemu-devel] [PATCH 2/3] usb: change VID/PID for usb-hub and usb-msd to prevent conflict Gerd Hoffmann
2011-11-01 15:29 ` Andreas Färber
2011-11-01 15:40 ` Gerd Hoffmann
2011-11-01 14:56 ` [Qemu-devel] [PATCH 3/3] usb-host: fix host close Gerd Hoffmann
2011-11-01 18:13 ` [Qemu-devel] [PULL] usb patch queue Anthony Liguori
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