suse man page for pci_block_user_cfg_access

PCI_BLOCK_USER_CFG_A(9) 					Hardware Interfaces					   PCI_BLOCK_USER_CFG_A(9)

NAME
       pci_block_user_cfg_access - Block userspace PCI config reads/writes

SYNOPSIS
       void pci_block_user_cfg_access(struct pci_dev * dev);

ARGUMENTS
       dev
	   pci device struct

DESCRIPTION
       When 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.

COPYRIGHT
Kernel Hackers Manual 2.6.					     July 2010						   PCI_BLOCK_USER_CFG_A(9)