mirror of
https://github.com/torvalds/linux.git
synced 2024-12-23 11:21:33 +00:00
15 lines
601 B
Plaintext
15 lines
601 B
Plaintext
|
Whatt: /sys/devices/.../sun
|
||
|
Date: October 2012
|
||
|
Contact: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com>
|
||
|
Description:
|
||
|
The file contains a Slot-unique ID which provided by the _SUN
|
||
|
method in the ACPI namespace. The value is written in Advanced
|
||
|
Configuration and Power Interface Specification as follows:
|
||
|
|
||
|
"The _SUN value is required to be unique among the slots of
|
||
|
the same type. It is also recommended that this number match
|
||
|
the slot number printed on the physical slot whenever possible."
|
||
|
|
||
|
So reading the sysfs file, we can identify a physical position
|
||
|
of the slot in the system.
|