Re: Need help deciding what kind of driver is most appropriate
Re: Need help deciding what kind of driver is most appropriate
- Subject: Re: Need help deciding what kind of driver is most appropriate
- From: Jeff Moore <email@hidden>
- Date: Fri, 18 Aug 2006 17:00:17 -0700
On Aug 18, 2006, at 4:51 PM, Nick Hebner wrote:
On 8/18/06, Jeff Moore <email@hidden> wrote:
On Aug 18, 2006, at 4:01 PM, Nick Hebner wrote:
> The idea of what a HAL plugin actually is, is sort of a replacement
> for the HAL that you interface with using the AudioHardwareXXX
> functions.
These plug-ins are only hooked into the AudioObject, AudioDevice, and
AudioStream prefixed API calls. A version 3 plug-in can safely ignore
the AudioDevice and AudioStream calls provided it fully supports the
AudioObject calls. The AudioHardware prefixed API calls aren't covered
here.
Ignore them meaning, provide NULL handler pointers in the interface?
I don't think you can do that, but the HAL won't call them if the
AudioObject calls are there as the AudioObject bits are a strict super-
set of the AudioDevice and AudioStream bits.
--
Jeff Moore
Core Audio
Apple
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