Name
pci_request_region —
Reserve PCI I/O and memory resource
Synopsis
int pci_request_region ( | struct pci_dev * pdev, |
| | int bar, |
| | const char * res_name); |
Arguments
struct pci_dev * pdev
PCI device whose resources are to be reserved
int bar
BAR to be reserved
const char * res_name
Name to be associated with resource
Description
Mark the PCI region associated with PCI device pdev BAR 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.