ESHUTDOWN after 2 usb_interrupt_msg calls

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Hi,

I'm having some issues with my driver, hope that this is OK to ask here about it..
Calling the   usb_interrupt_msg with  timeout (2.6.33.7 kernel on OMAP3530) and returning on T.O. more than 2 times results in ESHUTHDOWN in my driver.
Any suggestions why this might happen?

BTW when working in blocking mode (0 at the T.O. parameter) the problem does not reproduce.

Kind regards,
Baraq
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