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DM: Try to load audio mediator BE driver before starting UOS 

Currently whether audio works in virtio mediator or pass-through mode can be determined
by checking the device file of vbs_k_audio

But before the completion of loading audio virtio-BE module, the device file of /dev/vbs_k_audio
doesn't exist. In such case in course of loading UOS, the incorrect work mode is selected
for audio device (passthru instead of mediator). This is incorrect

Tracked-On: projectacrn/acrn-hypervisor#2247
Signed-off-by: Zhao Yakui <yakui.zhao@intel.com>
Signed-off-by: Alek Du <alek.du@intel.com>
This commit is contained in:
Zhao Yakui 2019-01-08 10:55:27 +08:00 committed by acrnsi
parent 1bc90293be
commit d094a39a7f
1 changed files with 4 additions and 0 deletions
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4
devicemodel/samples/apl-mrb/launch_uos.sh
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@ -10,6 +10,10 @@ if [ ! -e "/dev/vbs_ipu" ]; then
ipu_passthrough=1
fi
# use the modprobe to force loading snd-soc-skl/sst_bxt_bdf8532
modprobe -q snd-soc-skl
modprobe -q snd-soc-sst_bxt_tdf8532
audio_passthrough=0
# Check the device file of /dev/vbs_k_audio to determine the audio mode