gpio: add modify gpio function in powerdebug tool.
For power consumption test, we can change gpio direction and value
and check that power consumption is falled or not.
use 'D' key to change gpio direction.
And when gpio direction is "out", use 'V' key to change gpio value.
Signed-off-by: Shaojie Sun <shaojie.sun@linaro.com>
diff --git a/README b/README
index fa997f6..3bf1659 100644
--- a/README
+++ b/README
@@ -7,4 +7,10 @@
Current version only displays regulator information and clock tree from
debugfs. Support will be added for sensors later.
- -- Amit Arora <amit.arora@linaro.org> Fri, 08 Sep 2010
+ -- Amit Arora <amit.arora@linaro.org> Fri, 08 Sep 2010
+
+Now we add gpio-change function for power consumption need.
+When gpio is not in interrupt mode. use 'D' key to change gpio direction.
+And when gpio direction is "out", use 'V' key to change gpio value.
+
+ -- Shaojie Sun <shaojie.sun@linaro.org> Mon, 29 Jul 2013