pci_cfg_access_trylock (9) Linux Manual Page
pci_cfg_access_trylock – try to lock PCI config reads/writes
Synopsis
- bool pci_cfg_access_trylock(struct pci_dev
* dev);
Arguments
dev
-
- pci device struct
Description
Same as pci_cfg_access_lock, but will return 0 if access is already locked, 1 otherwise. This function can be used from atomic contexts.