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usb: Un-deprecate -usbdevice (except for -usbdevice audio which gets removed)

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When trying to remove the -usbdevice option, there were complaints that
"-usbdevice braille" is still a very useful shortcut for some people.
Thus we never remove this option. Since it's not such a big burden to
keep it around, and it's also convenient in the sense that you don't
have to worry to enable a host controller explicitly with this option,
we should remove it from he deprecation list again.

However, there is one exception: "-usbdevice audio" should go away, since
audio devices without "audiodev=..." parameter are also on the deprecation
list and you cannot use "-usbdevice audio" with "audiodev".

Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20210310173323.1422754-4-thuth@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
This commit is contained in:
Thomas Huth 2021-03-10 18:33:22 +01:00 • committed by Gerd Hoffmann
parent 6523c96c9c
commit 6db34277e3
4 changed files with 8 additions and 12 deletions
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9
docs/system/deprecated.rst
View file

@ -21,15 +21,6 @@ deprecated.
System emulator command line arguments
--------------------------------------
``-usbdevice`` (since 2.10.0)
'''''''''''''''''''''''''''''
The ``-usbdevice DEV`` argument is now a synonym for setting
the ``-device usb-DEV`` argument instead. The deprecated syntax
would automatically enable USB support on the machine type.
If using the new syntax, USB support must be explicitly
enabled via the ``-machine usb=on`` argument.
``-drive file=json:{...{'driver':'file'}}`` (since 3.0)
'''''''''''''''''''''''''''''''''''''''''''''''''''''''

8
docs/system/removed-features.rst
View file

@ -38,6 +38,14 @@ or ``-display default,show-cursor=on`` instead.
QEMU 5.0 introduced an alternative syntax to specify the size of the translation
block cache, ``-accel tcg,tb-size=``.
``-usbdevice audio`` (removed in 6.0)
'''''''''''''''''''''''''''''''''''''
This option lacked the possibility to specify an audio backend device.
Use ``-device usb-audio`` now instead (and specify a corresponding USB
host controller or ``-usb`` if necessary).
QEMU Machine Protocol (QMP) commands
------------------------------------