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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.
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