tree bfaa7a6ae9751f1ff5acc34253b0cc5d7773d6c3
parent a379f499c8e27d2c18b7089feb18c7f0a44e0433
author Yi Jin <jinyithu@google.com> 1510017447 -0800
committer Yi Jin <jinyithu@google.com> 1510694545 -0800

Implement Cpu Freq Section

When poll from sysfs, revents return POLLERR by default, handles
this edge case in this cl.

Bug: 68774444
Test: unit tested + on device tests
Change-Id: I23540299c026d3e7676497f56690e9f8646a47bd