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* scd/ccid-driver.c (intr_cb): Try submitting INTERRUPT urb to see if it's suspend/resume. -- Upon suspend/resume, LIBUSB_TRANSFER_NO_DEVICE is returned, since all URBs are cancelled. We need to see if it's real NODEV error or its by suspend/resume. We can distinguish by sending URB again. Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>