pci_cfg_access_lock (9) Linux Manual Page
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.