table of contents
| 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.
COPYRIGHT¶
| April 2023 | Kernel Hackers Manual 2.6. |