## PCI configuration#config PCI_MSI bool "Message Signaled Interrupts (MSI and MSI-X)" depends on PCI depends on (X86_LOCAL_APIC && X86_IO_APIC) || IA64 help This allows device drivers to enable MSI (Message Signaled Interrupts). Message Signaled Interrupts enable a device to generate an interrupt using an inbound Memory Write on its PCI bus instead of asserting a device IRQ pin. If you don't know what to do here, say N.config PCI_DEBUG bool "PCI Debugging" depends on PCI && DEBUG_KERNEL help Say Y here if you want the PCI core to produce a bunch of debug messages to the system log. Select this if you are having a problem with PCI support and want to see more of what is going on. When in doubt, say N.