pci_cfg_access_lock (9)

Lock pci config reads/writes

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  3. Kernel routines
  4. pci_cfg_access_lock: Lock pci config reads/writes
  1. Carta.tech
  2. Packages
  3. linux-manual-3.16
  4. 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.

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