Hi,
I am developing a USB printer driver (language monitor)for a printer.
I am encoutering the following problem.
Readport command fails, but I am able to write to the port
through USBMon.dll, the port monitor provided my microsoft.
But when I bypass USBMon and talk directly to USBPrint.sys I am
able to perform both ReadPort and WritePoprt.
But ReadPort works under win98 and winXP.
I tried to debug usbmon using soft-ice and I believe usbmon’s
createfile function fails.
Has anyone encountered this problem before?It would be of help
if someone could provide a lead.
thanks,
gibb