How to fiind pci-bus of netwrok interface using ioctl

[pradeepkumar]

Hi,

I want to find which network adpter(pci-bus) is associated with which network interface. I tried using IRQ numaber. I can find IRQ number of netwrok adapter usig lspci command. I found the IRQ number of network interface using ioctl and ifrq struct. Since multiple network adapter can share IRQ, it didn't worked properly.

I found that using pci-bus device id i can find association network adapter and network interface. I want to know which struct will provide this value for the network interface. I am using ioctl.

Regards,
Pradeep

[cjcox]

pradeepkumar wrote:
> Hi,
>
> I want to find which network adpter(pci-bus) is associated with which
> network interface. I tried using IRQ numaber. I can find IRQ number of
> netwrok adapter usig lspci command. I found the IRQ number of network
> interface using ioctl and ifrq struct. Since multiple network adapter
> can share IRQ, it didn't worked properly.
>
> I found that using pci-bus device id i can find association network
> adapter and network interface. I want to know which struct will provide
> this value for the network interface. I am using ioctl.


find /sys/devices -name eth0

libsysfs has routines you can use to walk the /sys tree.

Not sure if there is any other good way to get at this...