ERROR_SEM_TIMEOUT when using WinUSB WritePipe

Posted by Ted N on Stack Overflow See other posts from Stack Overflow or by Ted N
Published on 2010-05-20T00:52:10Z Indexed on 2010/05/20 1:00 UTC
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winusb

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write

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I often get ERROR_SEM_TIMEOUT errors using the WinUSB WritePipe function. This would seem to indicate that there is a timeout, but if I wait a period of time and try again I'm never able to write. I'm writing in 64 byte chucks to the USB device and often don't have problems. Once I start getting the error, I may have to unplug the usb and and close my app before trying again. Has anybody experienced this problem?

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