挂中断，pci 的BusInterruptLevel如何确定，谢谢～！

偶采用
driver works 里的intrdemo，
对KInterrupt的参数不是很了解，请大侠执教
贴一下定义
KInterrupt(
INTERFACE_TYPE IntfType,
ULONG BusNumber,
ULONG BusInterruptLevel,
ULONG BusInterruptVector,
KINTERRUPT_MODE Mode,
BOOLEAN bShareVector,
BOOLEAN bSaveFloat
);

下面是我写的的，不知道ULONG BusInterruptLevel,
ULONG BusInterruptVector,
两个有什么区别
m_Interrupt(
PCIBus,
0,
10,
10,
Latched,
TRUE,
FALSE
),