Provided by: linux-doc-2.6.15_2.6.15-23.39_all bug

NAME

       pci_request_region - Reserved PCI I/O and memory resource

SYNOPSIS

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

ARGUMENTS

       pdev   PCI device whose resources are to be reserved

       bar    BAR to be reserved

       res_name
              Name to be associated with resource.

DESCRIPTION

       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.