problem in connecting a shared interrupt

NTDEV
1

hi,
I’m writing a driver for PCI multi-serial port driver,
I write a bus driver to create PDO to let serial port driver to hook it,
but the serial port driver will shows that:

:SERIAL: About to connect to interrupt for port \Device\MySerial0
:SERIAL: IoConnectInterrupt Args:
------- Interrupt 817af7a0
------- OurIsr bfb55380
…
------- Vector 3b
:SERIAL: Couldn’t connect to interrupt for \Device\MySerial0
:SERIAL: IoConnectInterrupt Args:
------- Interrupt 817af7a0
------- OurIsr bfb55380
…
------- Vector 3b

Can I connect a shared interrupt?
(my card and serial port driver both use the same interrupt)

Also,
In device manager, I found my pci card use interrupt request: 0x11,
However, I have another pci network card, and it also use interrupt
request: 0x11,
Will it cause problem?

Thanks in advance for your help.

Liang Ming-Chung