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