Our driver installs multiple subdevices, each representing a stereo channel on our multichannel cards. On XP it seemed the first channel always became the default device immediately after installation, but on Vista it's rather random - sometimes channel 1 on our card is marked default, other times channel 2 becomes the default.
The SetupPreferredAudioDevices INF keyword allows a particular card to assert itself as the default device, but is there any way to do the same thing with individual subdevices on a multichannel card?
Jeff PagesInnes Corporation Pty Ltd
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