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+What: /sys/devices/system/ibm_rtl/state
+Date: Sep 2010
+KernelVersion: 2.6.37
+Contact: Vernon Mauery <vernux@us.ibm.com>
+Description: The state file allows a means by which to change in and
+ out of Premium Real-Time Mode (PRTM), as well as the
+ ability to query the current state.
+
+ - 0 => PRTM off
+ - 1 => PRTM enabled
+
+Users: The ibm-prtm userspace daemon uses this interface.
+
+
+What: /sys/devices/system/ibm_rtl/version
+Date: Sep 2010
+KernelVersion: 2.6.37
+Contact: Vernon Mauery <vernux@us.ibm.com>
+Description: The version file provides a means by which to query
+ the RTL table version that lives in the Extended
+ BIOS Data Area (EBDA).
+Users: The ibm-prtm userspace daemon uses this interface.
+
+