Switching between Input-devices using OpenAL

In my software, I have used Microsoft CoreAudioAPIs to switch between 
Line/Mic-In and Stereo Mixer with Sound Blaster Audigy Value(SB-AGY-VL). 

But I've got a problem when using USB Sound Devices.
It is not possible to switch between Line/Mic-In and Stereo Mixer 
with the recent Sound Devices using CoreAudioAPIs.
(It's possible to switch between them with SB Audigy Value and Old-SoundMax etc.)

I want to use products as below.
  SoundBlaster X-Fi Surround5.1
  SoundBlaster X-Fi Go!

Is there some way switching between sound device properties using OpenAL?

Any information, however small, would be appreciated.

  Programming language: C++
  OperationSystem: Windows 7

Excuse me for my poor English. 

Respectfully yours,

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