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Re: Compatibility of IOKit drivers




On 7 Aug 2007, at 17:30, Quinn wrote:

At 12:27 +0900 7/8/07, Jeremy Pereira wrote:
I'm updating an IOKit driver that was written a couple of years ago to support some new hardware. It loads OK on a G5 machine running OS X 10.4.10 but not on a G4 machine running 10.4.6. The driver itself was originally built on a 10.4.3 G5. However I built the new version on a 10.4.10 Intel machine as a universal binary.

I am a little bit confused as to why this is the case. I thought building as a universal binary might be the issue, but the reported errors don't seem to suggest that.

Any suggestions?

Building a universal I/O Kit driver is a bit tricky. Have you followed the advice from TN2163?


<http://developer.apple.com/technotes/tn2006/tn2163.html>

I'm glad you posted that TN. I was looking for it whilst trying to troubleshoot my problem but for some reason, it wasn't showing up in my search.


I'll configure my driver appropriately and see if makes a difference.


S+E
--
Quinn "The Eskimo!" <http://www.apple.com/ developer/>
Apple Developer Relations, Developer Technical Support, Core OS/ Hardware
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References: 
 >Compatibility of IOKit drivers (From: Jeremy Pereira <email@hidden>)
 >Re: Compatibility of IOKit drivers (From: Quinn <email@hidden>)



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