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Re: User mode driver (HAL plugin) vs Kernel mode
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Re: User mode driver (HAL plugin) vs Kernel mode

  • Subject: Re: User mode driver (HAL plugin) vs Kernel mode
  • From: Paul Davis <email@hidden>
  • Date: Mon, 28 Jan 2013 14:47:39 -0500
i believe that apple employees have specifically noted that objective C and GCD are inappropriate tools for this purpose.


On Mon, Jan 28, 2013 at 2:46 PM, Joel Reymont <email@hidden> wrote:
I have a working virtual audio driver, aka HAL plugin, for a networked device.

It works fine, generally, even though I wrote the whole thing using
ObjC and GCD.

I'm currently trying to work out some occasional dropped buffer
glitches. Not sure if it's me or Audacity, for example.

I do have a real problem with recording in one application while
streaming from another. It seems like CoreAudio is sending me
zero-samples to output even though I'm just recording. These
zero-samples get mixed up with the sound streamed from the other app
to a bizarre effect.

Just a data point ;-).

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  • Follow-Ups:
    • Re: User mode driver (HAL plugin) vs Kernel mode
      • From: Joel Reymont <email@hidden>
References: 
 >User mode driver (HAL plugin) vs Kernel mode (From: Tuviah Snyder <email@hidden>)
 >Re: User mode driver (HAL plugin) vs Kernel mode (From: Dan <email@hidden>)
 >Re: User mode driver (HAL plugin) vs Kernel mode (From: Joel Reymont <email@hidden>)

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