Are there any linux libraries for pci
 

i m getting linker error when including <linux/pci.h>
error:undefined reference to pci_find_device
collect2: ld returned 1 exit

pci-devel?

Sounds like you're doing a kernel compile and writing your own driver. If that's the case, you might want to hit the report button and ask for this to be moved to the Linux-Kernel forum.

It sounds like either a .config problem or bad driver code.

Moved: This thread is more suitable in Linux-Kernel and has been moved accordingly to help your thread/question get the exposure it deserves.

Which kernel version you're developing for? pci_get_device() is deprecated. Try with pci_get_device().