On Sat, Nov 20, 2010 at 06:10:14PM +0530, Bond wrote: > Hi, > I have been reading some books about device driver development etc.I > made a char driver of bond (dummy) device. Which book are you reading? > My book says that PCI devices contain three addressable regions, > configuration space,IO ports,and device memory, If the book talks about device drivers without explaining how those are seperate address spaces, I'd suggest looking for a different book. >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. Try Linux Device Drivers v3 (search for "LDDv3") or the PCI book published by "Mindshare" in the 1990's. hth, grant > 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 -- 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
