doc: update usb redirection filter infomation on formatdomain.html

This commit is contained in:
Guannan Ren 2012-09-13 15:25:48 +08:00
parent 1c9d485dda
commit 203ab129af

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@ -2136,6 +2136,10 @@
<redirdev bus='usb' type='tcp'>
<source mode='connect' host='localhost' service='4000'/>
</redirdev>
<redirfilter>
<usbdev class='0x08' vendor='0x1234' product='0xbeef' version='2.00' allow='yes'/>
<usbdev allow='no'/>
</redirfilter>
</devices>
...</pre>
@ -2152,21 +2156,27 @@
tunnel; <code>type='tcp'</code>
or <code>type='spicevmc'</code> (which uses the usbredir
channel of a <a href="#elementsGraphics">SPICE graphics
device</a>) are typical.</dd>
device</a>) are typical.The redirdev element has an optional
sub-element<code>&lt;address&gt;</code> which can tie the
device to a particular controller. Further sub-elements,
such as <code>&lt;source&gt;</code>, may be required according
to the given type, although a <code>&lt;target&gt;</code> sub-element
is not required (since the consumer of the character device is
the hypervisor itself,rather than a device visible in the guest).
</dd>
<dt><code>redirfilter</code></dt>
<dd>The<code> redirfilter </code>element is used for creating the
filter rule to filter out certain devices from redirection.
It uses sub-element <code>&lt;usbdev&gt;</code>to define each filter rule.
<code>class</code>attribute is the USB Class code, for example,
0x08 represents mass storage devices. The USB device can be addressed by
vendor / product id using the<code>vendor</code> and <code>product</code> attributes.
<code>version</code> is the bcdDevice value of USB device, such as 1.00, 1.10 and 2.00.
These four attributes are optional and <code>-1</code> can be used to allow
any value for them. <code>allow</code>attribute is mandatory,
'yes' means allow, 'no' for deny.
</dd>
</dl>
<p>
The redirdev element has an optional sub-element
<code>&lt;address&gt;</code> which can tie the device to a
particular controller.
</p>
<p>
Further sub-elements, such as <code>&lt;source&gt;</code>, may
be required according to the given type, although
a <code>&lt;target&gt;</code> sub-element is not required (since
the consumer of the character device is the hypervisor itself,
rather than a device visible in the guest).
</p>
<h4><a name="elementsSmartcard">Smartcard devices</a></h4>