[Libguestfs] [PATCH v1] docs: domain: document legacy audio for qemu
Adding a blurb like this was forgotten in 2009.
Signed-off-by: Olaf Hering <olaf(a)aepfle.de>
---
docs/formatdomain.rst | 14 ++++++++++++++
1 file changed, 14 insertions(+)
diff --git a/docs/formatdomain.rst b/docs/formatdomain.rst
index d4f30bb8af..f07ea34232 100644
--- a/docs/formatdomain.rst
+++ b/docs/formatdomain.rst
@@ -7079,6 +7079,20 @@ is permitted with the following attributes.
The audio format, one of ``s8``, ``u8``, ``s16``, ``u16``,
``s32``, ``u32``, ``f32``. The default is hypervisor specific.
+Note:
+If no ``<audio/>`` element is defined, and the ``graphics`` element is set to
+either 'vnc' or 'sdl', the libvirtd or virtqemud process will honor the
following
+environment variables:
+
+* ``SDL_AUDIODRIVER``
+
+ Valid values are 'pulseaudio', 'esd', 'alsa' or
'arts'.
+
+* ``QEMU_AUDIO_DRV``
+
+ Valid values are 'pa', 'pulseaudio', 'none', 'alsa',
'coreaudio', 'jack',
+ 'oss', 'sdl', 'spice' or 'file'.
+
None audio backend
^^^^^^^^^^^^^^^^^^