The Linux Kernel API
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pci_request_regions

Name

pci_request_regions -- Reserved PCI I/O and memory resources

Synopsis

int pci_request_regions (struct pci_dev * pdev, char * res_name);

Arguments

pdev: PCI device whose resources are to be reserved
res_name: Name to be associated with resource.

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.

Returns 0 on success, or EBUSY on error. A warning message is also printed on failure.

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