drivers/firmware/Kconfig

   1 #
   2 # For a description of the syntax of this configuration file,
   3 # see Documentation/kbuild/kconfig-language.txt.
   4 #
   5
   6 menu "Firmware Drivers"
   7
   8 config EDD
   9         tristate "BIOS Enhanced Disk Drive calls determine boot disk"
  10         depends on !IA64
  11         help
  12           Say Y or M here if you want to enable BIOS Enhanced Disk Drive
  13           Services real mode BIOS calls to determine which disk
  14           BIOS tries boot from.  This information is then exported via sysfs.
  15
  16           This option is experimental and is known to fail to boot on some
  17           obscure configurations. Most disk controller BIOS vendors do
  18           not yet implement this feature.
  19
  20 config EFI_VARS
  21         tristate "EFI Variable Support via sysfs"
  22         depends on EFI
  23         default n
  24         help
  25           If you say Y here, you are able to get EFI (Extensible Firmware
  26           Interface) variable information via sysfs.  You may read,
  27           write, create, and destroy EFI variables through this interface.
  28
  29           Note that using this driver in concert with efibootmgr requires
  30           at least test release version 0.5.0-test3 or later, which is
  31           available from Matt Domsch's website located at:
  32           <http://linux.dell.com/efibootmgr/testing/efibootmgr-0.5.0-test3.tar.gz>
  33
  34           Subsequent efibootmgr releases may be found at:
  35           <http://linux.dell.com/efibootmgr>
  36
  37 config EFI_PCDP
  38         bool "Console device selection via EFI PCDP or HCDP table"
  39         depends on ACPI && EFI && IA64
  40         default y if IA64
  41         help
  42           If your firmware supplies the PCDP table, and you want to
  43           automatically use the primary console device it describes
  44           as the Linux console, say Y here.
  45
  46           If your firmware supplies the HCDP table, and you want to
  47           use the first serial port it describes as the Linux console,
  48           say Y here.  If your EFI ConOut path contains only a UART
  49           device, it will become the console automatically.  Otherwise,
  50           you must specify the "console=hcdp" kernel boot argument.
  51
  52           Neither the PCDP nor the HCDP affects naming of serial devices,
  53           so a serial console may be /dev/ttyS0, /dev/ttyS1, etc, depending
  54           on how the driver discovers devices.
  55
  56           You must also enable the appropriate drivers (serial, VGA, etc.)
  57
  58           See <http://www.dig64.org/specifications/DIG64_HCDPv20_042804.pdf>
  59
  60 config DELL_RBU
  61         tristate "BIOS update support for DELL systems via sysfs"
  62         depends on X86
  63         select FW_LOADER
  64         help
  65          Say m if you want to have the option of updating the BIOS for your
  66          DELL system. Note you need a Dell OpenManage or Dell Update package (DUP)
  67          supporting application to communicate with the BIOS regarding the new
  68          image for the image update to take effect.
  69          See <file:Documentation/dell_rbu.txt> for more details on the driver.
  70
  71 config DCDBAS
  72         tristate "Dell Systems Management Base Driver"
  73         depends on X86
  74         help
  75           The Dell Systems Management Base Driver provides a sysfs interface
  76           for systems management software to perform System Management
  77           Interrupts (SMIs) and Host Control Actions (system power cycle or
  78           power off after OS shutdown) on certain Dell systems.
  79
  80           See <file:Documentation/dcdbas.txt> for more details on the driver
  81           and the Dell systems on which Dell systems management software makes
  82           use of this driver.
  83
  84           Say Y or M here to enable the driver for use by Dell systems
  85           management software such as Dell OpenManage.
  86
  87 config DMIID
  88     bool "Export DMI identification via sysfs to userspace"
  89     depends on DMI
  90     default y
  91         help
  92           Say Y here if you want to query SMBIOS/DMI system identification
  93           information from userspace through /sys/class/dmi/id/ or if you want
  94           DMI-based module auto-loading.
  95
  96 endmenu