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timers in AudioHardwarePlugin
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timers in AudioHardwarePlugin


  • Subject: timers in AudioHardwarePlugin
  • From: Stefan Werner <email@hidden>
  • Date: Sun, 3 Aug 2003 14:38:05 +0200

Hi,

I am currently working on a user space audio driver, using the AudioHardwarePlugin.h API. What I have working for now is a plugin that reports itself to the system and answers most DeviceGetProperty() and StreamGetProperty() requests. It's working good enough that programs like Ableton Live detect and initialize my driver.

What I am working on right now is calling the clients' AudioDeviceIOProc() functions, and this is where I'm stuck right now. How do I get accurate timers as an AudioHardwarePlugin? Not being derived from IOAudioEngine.h, my driver cannot use IOKit to get timestamps and interrupts. What is the best way to get accurate timers in user space?

Thanks,
Stefan
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