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If you have a USB Streaming device attached to a computer running that is resuming from a Sleep (S3) or Hibernate (S4) state, the system may halt and you may receive a "Stop 0xFE" error message on a blue screen. This error message resembles the following:
This problem occurs when using a USB Streaming device with a driver that uses the USBCAMD2 Streaming driver library. Such drivers are not supported for use on Windows 7.
The stop message indicates that the USB streaming device driver using USBCAMD2 submitted two IRPs to initiate Isochronous data transfers, both of which referenced the same URB (USB Request Block) to describe the Isochronous data transfers.
This problem occurs because the USBCAMD2 Streaming driver library does not properly synchronize resumption of Isoch streams upon resuming from a system sleep/hibernate (S3/S4) state.
The Streaming class driver model which uses USBCAMD2 is an obsolete driver model not supported under Windows 7. The Microsoft-recommended solution is for developers of USB streaming device drivers to use a supported streaming media driver model such as AVStream.
USB Streaming device driver developers using the USBCAMD2 library may be able to work around this problem by adding a delay of several seconds before resuming the Ischronous stream when the system resumes from S3/S4. If a sufficient delay time (as determined by testing) is implemented to allow any previous Isochronous data transfers to complete before initiating a new Isochronous data transfer, that should avoid this error.
For more information on supported Streaming driver models, please see:
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