Actually we make a mass storage board, connected to PC by USB.
We want to use usbstor.sys on Windows 2000,XP.
Our board will comply with the SCSI mass storage specification,
but we want to have a tool to get information about what is going on in the
PC.
I am looking for a way to get informations about IRP passing through the
USB stack on the PC.
1- is it possible to get a checked version of usbstor?
I can then use KD or windbg to prompt debug message from usbstor.
2- I also plan to install a lower filter driver between usbstor and
usbhub.
This filter driver just trace the IRP passing and pass them down to next
lower driver.
in this case how can i install this filter driver on the USB stack?
thank you.
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