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Re: Can't find Interface Descriptor

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Re: Can't find Interface Descriptor

Subject: Re: Can't find Interface Descriptor
From: Fernando Urbina <email@hidden>
Date: Mon, 31 Jan 2005 12:34:50 -0700

Please subscribe yourself to the USB list @ lists.apple.com. USB questions are better asked there.

Are you writing a device driver or an interface driver? If it's a device driver, the interfaces won't be created until you do a SetConfiguration().

On Jan 30, 2005, at 7:33 PM, Ness Joumaa wrote:

I'm writing a driver that drives a USB composite device. This driver is based on the methods that the CDC examples used. Now, when the driver tries to find a useable interface descriptor, it cannot find any that matched my IOUSBFindInterfaceRequest request but IOUSBFindInterfaceRequest matches exactly what USB Prober said about my composite device, so there shouldn't

--
Fernando Urbina
USB Technology Team
Apple Computer, Inc.

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  >Can't find Interface Descriptor (From: Ness Joumaa <email@hidden>)




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