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Re: Two devices don't show up in Core Audio
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Re: Two devices don't show up in Core Audio


  • Subject: Re: Two devices don't show up in Core Audio
  • From: Jeff Moore <email@hidden>
  • Date: Tue, 12 Mar 2002 11:04:41 -0800

on 3/11/02 7:07 PM, Cameron Jones <email@hidden> wrote:

> When I plug in two of my USB Audio Devices, only one shows up in HAL. They
> both operate OK and talk correctly through my custom IOUserClients.
>
> Is there any trick to getting two identical drivers to show up in HAL? Do
> they have to have different GUIDs or something?

That's why it's a called a globally unique ID. Every IOAudioEngine has to
have one or else the HAL can't distinguish it from the other instance of the
driver.

--

Jeff Moore
Core Audio
Apple
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References: 
 >Two devices don't show up in Core Audio (From: Cameron Jones <email@hidden>)

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