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