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Re: Error 0x2EF : kIOReturnIsoTooNew

Subject: Re: Error 0x2EF : kIOReturnIsoTooNew
From: Fernando Urbina <email@hidden>
Date: Mon, 25 Apr 2005 09:10:32 -0600
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The frameStart of the request you have issued is too far in the future. For a high speed device, you cannot request anything further than 1024ms from the time the request is received. For classic speed devices, you cannot request further than 32752 ms in the future. If you get these errors, all those frames will not go out in the bus.

Fernando Urbina

USB Technology Team

Apple Computer, Inc.

On Apr 25, 2005, at 8:14 AM, Nidhi Chadha wrote:

I am reading USB Isochronous pipe but sometimes I get the error 0xE00002EF . I have checked this error code in IOReturn.h . It is kIOReturnIsoTooNew : isochronous I/O request for distant future. What does this mean? What is the cause of this error and how can it be eliminated?

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References:
	>Error 0x2EF : kIOReturnIsoTooNew (From: Nidhi Chadha <email@hidden>)

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