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Re: [slightly OT] Emagic EMI 2|6 problem fixed
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Re: [slightly OT] Emagic EMI 2|6 problem fixed


  • Subject: Re: [slightly OT] Emagic EMI 2|6 problem fixed
  • From: Mark Cookson <email@hidden>
  • Date: Sun, 29 Dec 2002 22:34:44 -0800

There is a kext, EMI.kext or something like that. That's what gets loaded when you plug in the EMI. Last time I checked this is how it worked, though they might have changed it recently; I've not been keeping track that closely.

When it wasn't working, did you look at what Apple System Profiler reported? It would tell you if it was an unknown USB device (meaning that the EMI.kext hadn't loaded), or if it was an EMI 2|6 meaning that it had loaded. At that point the question would have been if the AppleUSBAudio driver had loaded and Core Audio didn't recognize it, or if AppleUSBAudio hadn't loaded on it. You could check on that using IORegistryExplorer and finding its node in the USB family to see if the AppleUSBAudio driver had loaded or not.

Now that it's working we'll never know, but if it ever happens again these are some things that you might want to check out some of these things.

Mark

On Sunday, December 29, 2002, at 11:19 AM, email@hidden wrote:

Perhaps the permissions on the driver were messed up, causing it not to
load?

Well, AFAIK, the 'driver' consists of a daemon which listens for USB insert
notifications and uploads the firmware to the device whenever its attached
(no kernel extension is used in the process).

Judging by the LED's on the device, the firmware _did_ get uploaded, its
just that CoreAudio didn't seem to know the device is there: AMS didn't see
it, for instance.
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