NAME

       biosdecode - BIOS information decoder

SYNOPSIS

       biosdecode [OPTIONS]

DESCRIPTION

       biosdecode  parses  the  BIOS memory and prints information about all structures (or entry
       points) it knows of. Currently known entry point types are:

       • SMBIOS (System Management BIOS)
         Use dmidecode for a more detailed output.

       • DMI (Desktop Management Interface, a legacy version of SMBIOS)
         Use dmidecode for a more detailed output.

       • SYSID

       • PNP (Plug and Play)

       • ACPI (Advanced Configuration and Power Interface)

       • BIOS32 (BIOS32 Service Directory)

       • PIR (PCI IRQ Routing)

       • 32OS (BIOS32 Extension, Compaq-specific)
         See ownership for a Compaq ownership tag retrieval tool.

       • SNY (Sony-specific, not decoded)

       • VPD (Vital Product Data, IBM-specific)
         Use vpddecode for a more detailed output.

       • FJKEYINF (Application Panel, Fujitsu-specific)

       biosdecode started its life as a part of dmidecode but as  more  entry  point  types  were
       added, it was moved to a different program.

OPTIONS

       -d, --dev-mem FILE
              Read memory from device FILE (default: /dev/mem)

           --pir full
              Decode the details of the PCI IRQ routing table

       -h, --help
              Display usage information and exit

       -V, --version
              Display the version and exit

FILES

       /dev/mem

BUGS

       Most  of  the  time,  biosdecode  prints too much information (you don't really care about
       addresses) or not enough (because it doesn't follow pointers and has no lookup tables).

AUTHORS

       Alan Cox, Jean Delvare

SEE ALSO

       dmidecode(8), mem(4), ownership(8), vpddecode(8)