PCI_REQUEST_REGIONS_ - Online Linux Manual PageSection : 9
Updated : June 2018
Source : Kernel Hackers Manual 2​.6​.
Note : Hardware Interfaces

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NAMEpci_request_regions_exclusive − Reserved PCI I/O and memory resources

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SYNOPSISint pci_request_regions_exclusive(struct pci_dev * pdev, const char * res_name);

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ARGUMENTSpdev PCI device whose resources are to be reserved res_name Name to be associated with resource​.

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DESCRIPTIONMark 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​.

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Online Linux Manual Page   :   Version   :   Online Linux Manual Page - Fedora.40 - march=x86-64 - mtune=generic - 24.12.05
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