Configuration files

There are two primary (and optional) configuration files:

• The hardware-dependent configuration file, specified with the PCI_HW_CONFIG_FILE environment variable, is applicable to all driver software and the PCI server process. It contains board-specific configuration information, such as PCI Interrupt Pin assignment and/or IRQ mapping, slot and chassis numbering information, and so on.
• The server configuration file is applicable to only the PCI server process.

All support files, including configuration files and templates, are contained in ${QNX_TARGET}/etc/system/config/pci/ on your development host, and are installed in /etc/system/config/pci/ on your target. You don't have to keep your configuration files there, but it does provide a consistent location.

The files pci_hw-template.cfg and pci_server-template.cfg contain a great amount of detail about their use.

When creating a custom configuration file, you can remove any sections or parameters that don't apply to your system. Removing the comments also helps to speed up the parsing. Just make sure not to delete any section tags for which you want to set a parameter, or it won't be interpreted. Empty sections are OK.