xref: /OK3568_Linux_fs/kernel/Documentation/ABI/testing/sysfs-firmware-dmi-tables (revision 4882a59341e53eb6f0b4789bf948001014eff981)
1*4882a593SmuzhiyunWhat:		/sys/firmware/dmi/tables/
2*4882a593SmuzhiyunDate:		April 2015
3*4882a593SmuzhiyunContact:	Ivan Khoronzhuk <ivan.khoronzhuk@globallogic.com>
4*4882a593SmuzhiyunDescription:
5*4882a593Smuzhiyun		The firmware provides DMI structures as a packed list of
6*4882a593Smuzhiyun		data referenced by a SMBIOS table entry point. The SMBIOS
7*4882a593Smuzhiyun		entry point contains general information, like SMBIOS
8*4882a593Smuzhiyun		version, DMI table size, etc. The structure, content and
9*4882a593Smuzhiyun		size of SMBIOS entry point is dependent on SMBIOS version.
10*4882a593Smuzhiyun		The format of SMBIOS entry point and DMI structures
11*4882a593Smuzhiyun		can be read in SMBIOS specification.
12*4882a593Smuzhiyun
13*4882a593Smuzhiyun		The dmi/tables provides raw SMBIOS entry point and DMI tables
14*4882a593Smuzhiyun		through sysfs as an alternative to utilities reading them
15*4882a593Smuzhiyun		from /dev/mem. The raw SMBIOS entry point and DMI table are
16*4882a593Smuzhiyun		presented as binary attributes and are accessible via:
17*4882a593Smuzhiyun
18*4882a593Smuzhiyun		/sys/firmware/dmi/tables/smbios_entry_point
19*4882a593Smuzhiyun		/sys/firmware/dmi/tables/DMI
20*4882a593Smuzhiyun
21*4882a593Smuzhiyun		The complete DMI information can be obtained using these two
22*4882a593Smuzhiyun		tables.
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