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Re: High Speed Isochronous support

Subject: Re: High Speed Isochronous support
From: Fabian Renn <email@hidden>
Date: Wed, 7 Sep 2005 17:35:02 +0200
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Hello list-members,

i have been programming a high speed usb audio device driver for the last months that uses high speed isochronous support. High speed isochronous pipes are supported with Mac OS X 10.2 and higher, but i suggest 10.4.2 and higher because there were several bug fixes with this version. Unfortunately there still is one major bug, which concerns Low Latency isoc transfers. With 10.4.2 the low latency transfer routine will act exactly like non-low latency isoc routines, meaning that the frame lists aren't updated as they are ought to ( if you need more information about this bug, mail me ). This bug is ALREADY fixed though ( thanks to Fernando Urbina ), and will be released with the next Mac OS X update.

Fabian
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