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Unified Diff: client/common_lib/rtc.py

Issue 3516004: Exported utility functions for RTC and system sleep (Closed) Base URL: ssh://gitrw.chromium.org/autotest.git
Patch Set: Created 10 years, 3 months ago
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Index: client/common_lib/rtc.py
diff --git a/client/common_lib/rtc.py b/client/common_lib/rtc.py
new file mode 100644
index 0000000000000000000000000000000000000000..ac2319547c978c59ea18b06609156ab41ff7e50b
--- /dev/null
+++ b/client/common_lib/rtc.py
@@ -0,0 +1,14 @@
+def get_seconds(utc=True):
+ """
+ Read the current time out of the RTC
+ """
+ return int(file('/sys/class/rtc/rtc0/since_epoch').readline())
+
+
+def set_wake_alarm(alarm_time):
+ """
+ Set the hardware RTC-based wake alarm to 'alarm_time'.
+ """
+ file('/sys/class/rtc/rtc0/wakealarm', 'w').write("%s\n" % str(alarm_time))
+
+
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