pci_request_regions_exclusive - Reserved PCI I/O and memory resources
2. SYNOPSIS ▲
int pci_request_regions_exclusive(struct pci_dev * pdev , const char * res_name );
3. ARGUMENTS ▲
PCI device whose resources are to be reserved
Name to be associated with resource.
4. DESCRIPTION ▲
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.
5. COPYRIGHT ▲