PCI_REQUEST_REGION(9) Hardware Interfaces PCI_REQUEST_REGION(9)
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
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 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.
COPYRIGHT
Kernel Hackers Manual 3.10 June 2014 PCI_REQUEST_REGION(9)
