dmatest: return actual state in 'run' file
The following command should return actual state of the test.
% cat /sys/kernel/debug/dmatest/run
To wait for test done the user may perform a busy loop that checks the state.
% while [ $(cat /sys/kernel/debug/dmatest/run) = "Y" ]
> do
> echo -n "."
> sleep 1
> done
> echo
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
diff --git a/Documentation/dmatest.txt b/Documentation/dmatest.txt
index 9a90729..3e17b55 100644
--- a/Documentation/dmatest.txt
+++ b/Documentation/dmatest.txt
@@ -36,6 +36,18 @@
Note that running a new test will stop any in progress test.
+The following command should return actual state of the test.
+ % cat /sys/kernel/debug/dmatest/run
+
+To wait for test done the user may perform a busy loop that checks the state.
+
+ % while [ $(cat /sys/kernel/debug/dmatest/run) = "Y" ]
+ > do
+ > echo -n "."
+ > sleep 1
+ > done
+ > echo
+
Part 3 - When built-in in the kernel...
The module parameters that is supplied to the kernel command line will be used