Provided by: kernel-doc-2.4.27_2.4.27-12_all bug


       pci_request_region -  Reserved PCI I/O and memory resource


       int pci_request_region (struct pci_dev *pdev, int bar, char *res_name);


       pdev         PCI device whose resources are to be reserved

       bar          BAR to be reserved

       res_name     Name to be associated with resource.


       Mark the PCI region associated with PCI device pdev  BR  bar  as  being
       reserved  by  owner res_name.  Do not access any address inside the PCI
       regions unless this call returns successfully.

       Returns 0 on success, or EBUSY on error.  A  warning  message  is  also
       printed on failure.