The line you added which was missing has an incorrect path.
The path is
HKLM,SYSTEM\CurrentControlSet\Control\MediaCategories\%MicArray1CustomNameGUID%
Failed to give a name to a virtual speaker
I'm developing a virtual audio device (AUD) driver.
I'm investigating a sample program: simpleaudiosample.
The sample give a name to the virtual mic, but not to the virtual speaker.
I’ve been trying to give a name to the virtual speaker by reference to the virtual mic, but not going well yet.
In case of the virtual mic,
1) Add the name to the registry (SimpleAudioSample.inx)
[SIMPLEAUDIOSAMPLE_SA.AddReg]
HKR,%MEDIA_CATEGORIES%\%MicArray1CustomNameGUID%,Name,,%MicArray1CustomName% <-- need to add this (lacking in sample)
[Strings]
MEDIA_CATEGORIES = "MediaCategories"
MicArray1CustomNameGUID = {6ae81ff4-203e-4fe1-88aa-f2d57775cd4a}
MicArray1CustomName= "Internal Microphone Array - Front"
2) Set MicArray1TopoMiniportPins[0].KsPinDescriptor.Name to the custom name GUID.
// {6ae81ff4-203e-4fe1-88aa-f2d57775cd4a}
DEFINE_GUID(MICARRAY1_CUSTOM_NAME,
0x6ae81ff4, 0x203e, 0x4fe1, 0x88, 0xaa, 0xf2, 0xd5, 0x77, 0x75, 0xcd, 0x4a);
static
PCPIN_DESCRIPTOR MicArray1TopoMiniportPins[] =
{
// KSPIN_TOPO_MIC_ELEMENTS
{
0,
0,
0, // InstanceCount
NULL, // AutomationTable
{ // KsPinDescriptor
0, // InterfacesCount
NULL, // Interfaces
0, // MediumsCount
NULL, // Mediums
SIZEOF_ARRAY(MicArray1TopoPinDataRangePointersBridge), // DataRangesCount
MicArray1TopoPinDataRangePointersBridge, // DataRanges
KSPIN_DATAFLOW_IN, // DataFlow
KSPIN_COMMUNICATION_NONE, // Communication
&KSNODETYPE_MICROPHONE_ARRAY, // Category
&MICARRAY1_CUSTOM_NAME, // Name <-- this
0 // Reserved
}
},
// KSPIN_TOPO_BRIDGE
{ ... }
};
In the same manner, I added the name to the registry and set SpeakerWaveMiniportPins1.KsPinDescriptor.Name to the custom name GUID, but the name was ignored.
Setting SpeakerWaveMiniportPins[0].KsPinDescriptor.Name produced the same result.
I investigated the difference between mic and speaker and emulated the codes for mic, but it was all in vain.
I struggled for a few days, but the issue has not been resolved.
Please help.
1 answer
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Camille Gonnet 1 Reputation point
2022-11-03T08:02:47.607+00:00