how can i get the interrupt number of my UHC?

  Now i am developing a driver for UHC on PCI,i must find out the interrupt number assigned to my UHC by the system,as you know, the size of each device configuration space of PCI is 256 bytes, except the header portion,the other registers is specific according to device,in which including the interrupt register.But i don\'t know how to get the material defined for UHC configuration space of
PCI. My operation system is Dos7.10.
Thank you so much for your time. Hope you can help me!my email:yixianwei@hotmail.com