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Date: Thu, 20 Dec 2007 11:47:50 -0800 From: Jeff Moore <email@hidden> Subject: Re: How to uniquely identify audio device To: CoreAudio API <email@hidden> Message-ID: <email@hidden> Content-Type: text/plain; charset=US-ASCII; format=flowed; delsp=yes
Odd. My version of <CoreAudio/AudioHardware.h> says: @constant kAudioDevicePropertyTransportType A UInt32 whose value indicates how the AudioDevice is connected to the CPU. Constants for some of the values for this property can be found in <IOKit/audio/IOAudioTypes.h>.
On Dec 20, 2007, at 11:14 AM, Lorenzo Thurman wrote:
Shaun Wexler wrote:On Dec 20, 2007, at 10:28 AM, Lorenzo Thurman wrote:Examine the device's Transport Type.I have just one followup question on this topic: How do I identify which device is the built-in audio Apple hardware? There don't appear to be any methods that would tell me that a particular piece of hardware is the built-in hardware. By the way, I'm looking at this page here as it seems most relevant to what I'm doing: http://tinyurl.com/3d4s6n Is there somewhere else I need to look? Is there sample code that might help? TIAThanks for the reply. I'll look into this later, but I guess I found one of those occasional documentation bugs:
"kAudioDevicePropertyTransportType A UInt32 whose value indicates how the AudioDevice is connected to the CPU. Constants for some of the values for this property can be found in ."
I guess I can find the constants for the property somewhere in one of the header files.
Jeff Moore Core Audio Apple
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