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Date: Sat, 24 Mar 2007 04:06:09 +0100 (CET)
From: Ton van Overbeek <ton@v-overbeek.nl>
To: samuel.thibault@ens-lyon.org
cc: cygwin@cygwin.com
Subject: Re: Libusb-win32-0.1.12.1-1 makes system unusable after reboot.
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I believe I found the cause of the problem.
When running cygcheck on /usr/lib/libusb/libusb0.sys I get this:

$ cygcheck /usr/lib/libusb/libusb0.sys
c:/Cygwin/lib/libusb/libusb0.sys
Error: could not find usbd.sys <---- !!!!
  C:\WINDOWS\system32\ntoskrnl.exe
    C:\WINDOWS\system32\BOOTVID.dll
      C:\WINDOWS\system32\HAL.dll
        C:\WINDOWS\system32\KDCOM.dll

Copying usbd.sys from c:\windows\system32\drivers to /usr/lib/libusb makes
the problem disappear. After a reboot everything works.

Somehow the Cygwin libusb0.sys must link to usbd.sys with the full path
i.e. c:\windows\system32\drivers\usbd.sys instead of assuming that
usbd.sys is located in the same directory as libusb0.sys.

HTH

Ton van Overbeek


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