PCI_BLOCK_USER_CFG_A(9) Hardware Interfaces PCI_BLOCK_USER_CFG_A(9)NAMEpci_block_user_cfg_access - Block userspace PCI config reads/writesSYNOPSISvoid pci_block_user_cfg_access(struct pci_dev * dev);ARGUMENTSdev pci device structDESCRIPTIONWhen user access is blocked, any reads or writes to config space will sleep until access is unblocked again. We don't allow nesting of block/unblock calls.COPYRIGHTKernel Hackers Manual 2.6. July 2010 PCI_BLOCK_USER_CFG_A(9)