Howto configure the Linux kernel / drivers / pci

PCI configuration

  • Option: PCI_MSI
    • Kernel Versions: ...
    • (on/off) Message Signaled Interrupts (MSI and MSI-X)
    • depends on PCI
    • depends on (X86_LOCAL_APIC && X86_IO_APIC) || IA64
      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.

    • Kernel Versions: ...
    • (on/off) Legacy /proc/pci interface
    • depends on PCI
      This feature enables a procfs file -- /proc/pci -- that provides a summary of PCI devices in the system.
      This feature has been deprecated as of v2.5.53, in favor of using the tool lspci(8). This feature may be removed at a future date.
      lspci can provide the same data, as well as much more. lspci is a part of the pci-utils package, which should be installed by your distribution. See <file:Documentation/Changes> for information on where to get the latest version.
      When in doubt, say N.

  • Option: PCI_DEBUG
    • Kernel Versions: ...
    • (on/off) PCI Debugging
    • depends on PCI && DEBUG_KERNEL
      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.

Linux Kernel Configuration

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