PCI_CFG_ACCESS_LOCK(9) Hardware Interfaces PCI_CFG_ACCESS_LOCK(9)NAME
pci_cfg_access_lock - Block userspace PCI config reads/writes
SYNOPSIS
void pci_cfg_access_lock(struct pci_dev * dev);
ARGUMENTS
dev
pci device struct
DESCRIPTION
When access is blocked, any userspace reads or writes to config space
and concurrent lock requests will sleep until access is allowed via
pci_cfg_access_unlocked again.
COPYRIGHTKernel Hackers Manual 2.6. November 2013 PCI_CFG_ACCESS_LOCK(9)