IRQ assigned to PCI device.

Hi All,

My problem is that i have a pci host and a pci target and they two share pci interrupt line i.e INTC and INTD .
I can see IRQ entry for only INTD interrupt line only in lspci -vvx.

Can anyone tell me
1)Is it possible share two pci interrupt line between 1 PCI host and 1 PCI target.
2) if 1 is right then why i could not see both IRQ INTC and INTD in lspci.

please help !!!

Thanks and Regards

They might share the interrupt lines, but not define them in the PCI config space. You need to dump the PCI space for both the host device and the target device, and look at which interrupts are defined. If only INTD shows up, then only INTD is defined in the devices configuration space.

dennis_k85