# # Plug and Play ACPI configuration # config PNPACPI bool "Plug and Play ACPI support (EXPERIMENTAL)" depends on PNP && ACPI_BUS && EXPERIMENTAL default y ---help--- Linux uses the PNPACPI to autodetect built-in mainboard resources (e.g. parallel port resources). Some features (e.g. real hotplug) are not currently implemented. If you would like the kernel to detect and allocate resources to your mainboard devices (on some systems they are disabled by the BIOS) say Y here. Also the PNPACPI can help prevent resource conflicts between mainboard devices and other bus devices.