Hi, I have been reading some books about device driver development etc.I made a char driver of bond (dummy) device. My book says that PCI devices contain three addressable regions, configuration space,IO ports,and device memory,the book talks about a file include/linux/pci_ids.h and PCI addressing etc.I read about following functions 1) pci_read_config_ 2) pci_write_config_ some thing known as offset is defined to be passed on as an argument to above functions 3) IRQ number assigned to a card function pci_read_config_byte_ ,configuration register offsets 4) pci_request_region I want to write a pci driver for my own understanding and I am reading some books about it. I am not clear with terms 1) configuration space, 2) I/O ports 3) device memory 4) the offsets defined in include/linux/pci_ids.h 5) PCI addressing. Can some one point me to a resource for understanding this stuff. The book I am reading does have good amount of information but just by reading it I find myself in a difficult situation and not able to appreciate the driver explained in it. I am not clear as what should I be googling to understand my questions. -- Most of the free documentation and kernel books are not worth reading. -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
