xref: /linux/Documentation/ABI/testing/sysfs-firmware-dmi-tables (revision bb9707077b4ee5f77bc9939b057ff8a0d410296f)
1What:		/sys/firmware/dmi/tables/
2Date:		April 2015
3Contact:	Ivan Khoronzhuk <ivan.khoronzhuk@globallogic.com>
4Description:
5		The firmware provides DMI structures as a packed list of
6		data referenced by a SMBIOS table entry point. The SMBIOS
7		entry point contains general information, like SMBIOS
8		version, DMI table size, etc. The structure, content and
9		size of SMBIOS entry point is dependent on SMBIOS version.
10		The format of SMBIOS entry point and DMI structures
11		can be read in SMBIOS specification.
12
13		The dmi/tables provides raw SMBIOS entry point and DMI tables
14		through sysfs as an alternative to utilities reading them
15		from /dev/mem. The raw SMBIOS entry point and DMI table are
16		presented as binary attributes and are accessible via:
17
18		/sys/firmware/dmi/tables/smbios_entry_point
19		/sys/firmware/dmi/tables/DMI
20
21		The complete DMI information can be obtained using these two
22		tables.
23