Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / Documentation / ABI / testing / sysfs-devices-lpss_ltr

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+What:          /sys/devices/.../lpss_ltr/
+Date:          March 2013
+Contact:       Rafael J. Wysocki <rafael.j.wysocki@intel.com>
+Description:
+               The /sys/devices/.../lpss_ltr/ directory is only present for
+               devices included into the Intel Lynxpoint Low Power Subsystem
+               (LPSS).  If present, it contains attributes containing the LTR
+               mode and the values of LTR registers of the device.
+
+What:          /sys/devices/.../lpss_ltr/ltr_mode
+Date:          March 2013
+Contact:       Rafael J. Wysocki <rafael.j.wysocki@intel.com>
+Description:
+               The /sys/devices/.../lpss_ltr/ltr_mode attribute contains an
+               integer number (0 or 1) indicating whether or not the devices'
+               LTR functionality is working in the software mode (1).
+
+               This attribute is read-only.  If the device's runtime PM status
+               is not "active", attempts to read from this attribute cause
+               -EAGAIN to be returned.
+
+What:          /sys/devices/.../lpss_ltr/auto_ltr
+Date:          March 2013
+Contact:       Rafael J. Wysocki <rafael.j.wysocki@intel.com>
+Description:
+               The /sys/devices/.../lpss_ltr/auto_ltr attribute contains the
+               current value of the device's AUTO_LTR register (raw)
+               represented as an 8-digit hexadecimal number.
+
+               This attribute is read-only.  If the device's runtime PM status
+               is not "active", attempts to read from this attribute cause
+               -EAGAIN to be returned.
+
+What:          /sys/devices/.../lpss_ltr/sw_ltr
+Date:          March 2013
+Contact:       Rafael J. Wysocki <rafael.j.wysocki@intel.com>
+Description:
+               The /sys/devices/.../lpss_ltr/auto_ltr attribute contains the
+               current value of the device's SW_LTR register (raw) represented
+               as an 8-digit hexadecimal number.
+
+               This attribute is read-only.  If the device's runtime PM status
+               is not "active", attempts to read from this attribute cause
+               -EAGAIN to be returned.