A simple U disk read and write problem?

ysxyysxy

I want to write a command to EP0 on a USB flash drive
Just like BUHOUND sends a standard get descritor command to EP0
How to achieve it?
Use XP standard driver.
I know that using DeviceIoControl + SCSI_PASS_THROUGH can read and write data to EP2, but I don't know how to write to EP0.

fink_1

It is estimated that BusHound is written at the driver layer through SCSI commands, but the specific commands are not very clear.