Name
pci_request_region —
Reserved PCI I/O and memory resource
Synopsis
int pci_request_region ( | struct pci_dev * | pdev, |
| | int | bar, |
| | const 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.