1# 2# For a description of the syntax of this configuration file, 3# see Documentation/kbuild/kconfig-language.txt. 4# 5 6menu "Firmware Drivers" 7 8config 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 20config 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 37config 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 60config 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 71config 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 87config 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 96endmenu 97