Commit | Line | Data |
---|---|---|
89ca78a0 | 1 | What: /sys/devices/.../sun |
bb74ac23 YI |
2 | Date: October 2012 |
3 | Contact: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com> | |
4 | Description: | |
5 | The file contains a Slot-unique ID which provided by the _SUN | |
6 | method in the ACPI namespace. The value is written in Advanced | |
7 | Configuration and Power Interface Specification as follows: | |
8 | ||
9 | "The _SUN value is required to be unique among the slots of | |
10 | the same type. It is also recommended that this number match | |
11 | the slot number printed on the physical slot whenever possible." | |
12 | ||
13 | So reading the sysfs file, we can identify a physical position | |
14 | of the slot in the system. |