Hello all I am new to the mail list I am trying to port the driver for PLX9030 PCI host chip based add-on card from  x86  to PPC7410 arch the following function function returns NULL pci_get_device(0x10b5, 0x9030, NULL) vendor ID given for PLX is 0x10b5 device ID is 0x9030 These values worked  and the module found the device in x86 platform, But the same code is complied and inserted on PPC7410 platform, the modules failed to detect the device Is there any Endianness conversion to be performed before passing the values to pci_get_device()  in hex format ?   I am using linux 2.6.24 kernel and while make-ing  the module ,ko file for PPC7410 using cross_complier gcc_74xx- there was a WARNING message "struct_module undefined " But it is possible to insert the module in the  kernel running on PPC7410, which then printk 's the message when pci_get_device() returns NULL can anyone help? thnaks --vivek