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[doc] audio: Add QEMU args to USB Audio

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Jonathan Rubenstein
2026-11-05 17:00:44 +02:00
committed by Geoffrey McRae
parent b224094dc8
commit 1c98a240b0
1 changed files with 17 additions and 0 deletions
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doc/audio.rst
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@@ -61,6 +61,23 @@ and a USB redirection device:
The USB redirection device is dedicated to the virtual Looking Glass audio
device while USB audio is active.
For QEMU:
.. code:: bash
-chardev spicevmc,name=usbredir,id=usbredirchar1 \
-device usb-redir,chardev=usbredirchar1,id=usbredirdev1,bus=xhci.0
.. note::
This redirection channel is dedicated to the virtual Looking Glass audio
device while USB audio is active. If you want to redirect another USB device
at the same time, you must create another channel.
When creating an extra USB redirection channel, you have to choose a new
``port`` (for libvirt) or ``id`` (for QEMU), as they must be unique.
Incrementing the number to the lowest one available is enough.
The emulated USB audio device is enabled by default. Its settings are:
.. code-block:: ini