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Based on kernel version 3.16. Page generated on 2014-08-06 21:35 EST.

1	What:		/sys/devices/.../lpss_ltr/
2	Date:		March 2013
3	Contact:	Rafael J. Wysocki <rafael.j.wysocki@intel.com>
4	Description:
5			The /sys/devices/.../lpss_ltr/ directory is only present for
6			devices included into the Intel Lynxpoint Low Power Subsystem
7			(LPSS).  If present, it contains attributes containing the LTR
8			mode and the values of LTR registers of the device.
9	
10	What:		/sys/devices/.../lpss_ltr/ltr_mode
11	Date:		March 2013
12	Contact:	Rafael J. Wysocki <rafael.j.wysocki@intel.com>
13	Description:
14			The /sys/devices/.../lpss_ltr/ltr_mode attribute contains an
15			integer number (0 or 1) indicating whether or not the devices'
16			LTR functionality is working in the software mode (1).
17	
18			This attribute is read-only.  If the device's runtime PM status
19			is not "active", attempts to read from this attribute cause
20			-EAGAIN to be returned.
21	
22	What:		/sys/devices/.../lpss_ltr/auto_ltr
23	Date:		March 2013
24	Contact:	Rafael J. Wysocki <rafael.j.wysocki@intel.com>
25	Description:
26			The /sys/devices/.../lpss_ltr/auto_ltr attribute contains the
27			current value of the device's AUTO_LTR register (raw)
28			represented as an 8-digit hexadecimal number.
29	
30			This attribute is read-only.  If the device's runtime PM status
31			is not "active", attempts to read from this attribute cause
32			-EAGAIN to be returned.
33	
34	What:		/sys/devices/.../lpss_ltr/sw_ltr
35	Date:		March 2013
36	Contact:	Rafael J. Wysocki <rafael.j.wysocki@intel.com>
37	Description:
38			The /sys/devices/.../lpss_ltr/auto_ltr attribute contains the
39			current value of the device's SW_LTR register (raw) represented
40			as an 8-digit hexadecimal number.
41	
42			This attribute is read-only.  If the device's runtime PM status
43			is not "active", attempts to read from this attribute cause
44			-EAGAIN to be returned.
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