pci_request_regions_exclusive — Reserved PCI I/O and memory resources
int pci_request_regions_exclusive ( | struct pci_dev * pdev, |
const char * res_name); |
pdevPCI device whose resources are to be reserved
res_nameName to be associated with resource.
Mark all PCI regions associated with PCI device pdev as
being reserved by owner res_name. Do not access any
address inside the PCI regions unless this call returns
successfully.
pci_request_regions_exclusive will mark the region so that
/dev/mem and the sysfs MMIO access will not be allowed.
Returns 0 on success, or EBUSY on error. A warning
message is also printed on failure.