pci_cfg_access_trylock
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## Name

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.

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