dmi_lenovo_device_presence
Synopsis
#include <opendmi/entity/lenovo/oem.h>
typedef struct dmi_lenovo_device_presence {
dmi_binary_t signature;
uint8_t offset;
uint8_t number;
uint8_t revision;
uint8_t devices;
bool is_fingerprint_reader;
} dmi_lenovo_device_presence_t;Description
The dmi_lenovo_device_presence_t structure holds the decoded Lenovo device
presence detection, OEM structure 3 of revision 1 of type 135, which tells
which devices of a ThinkPad are present, of which only the fingerprint reader
is known.
The structure is returned by dmi_entity_info for the structures decoded
by dmi_lenovo_device_presence_spec, of type DMI_TYPE(lenovo_device_presence),
declared in <opendmi/module/lenovo.h>, once the Lenovo extension module
(dmi_lenovo_module) is enabled, which is done for IBM and Lenovo platforms.
It lives as long as the context it has been decoded in.
Fields
signature-
Signature,
TP. offset-
Offset of the OEM structure,
0x07. number-
Number of the OEM structure,
3. revision-
Revision of the format of the OEM structure,
1. devices-
Device presence bits, of which only bit 0 is known.
is_fingerprint_reader-
Whether a fingerprint reader is present, as bit 0 of the device presence bits tells.