Definition: The '.0400_pci_header.conf' is a .conf file in Linux kernel documentation, specifying various device driver paths for PCI Express devices. This information can help users ensure that their drivers are compatible with specific devices without having to manually update all drivers at once. It typically has a key 'pci' followed by a number (0-4), and the contents include various paths or commands related to configuring and managing PCI Express devices within a Linux operating system.
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