PCI_CFG_ACCESS_LOCK(9)                 Hardware Interfaces                 PCI_CFG_ACCESS_LOCK(9)



NAME
       pci_cfg_access_lock - Lock PCI config reads/writes

SYNOPSIS
       void pci_cfg_access_lock(struct pci_dev * dev);

ARGUMENTS
       dev
           pci device struct

DESCRIPTION
       When access is locked, any userspace reads or writes to config space and concurrent lock
       requests will sleep until access is allowed via pci_cfg_access_unlocked again.

COPYRIGHT
Kernel Hackers Manual 4.8.                 January 2017                    PCI_CFG_ACCESS_LOCK(9)