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| author | Andy Shevchenko <andriy.shevchenko@linux.intel.com> | 2013-03-04 10:09:31 +0100 |
|---|---|---|
| committer | Vinod Koul <vinod.koul@intel.com> | 2013-04-15 06:21:17 +0200 |
| commit | 3e5ccd866fdf3a1e1d4d2c08c81f861ad6798d32 (patch) | |
| tree | 7ef2a3270021ef71912e1970683ec429f93d38b7 /Documentation | |
| parent | dmatest: run test via debugfs (diff) | |
| download | linux-3e5ccd866fdf3a1e1d4d2c08c81f861ad6798d32.tar.xz linux-3e5ccd866fdf3a1e1d4d2c08c81f861ad6798d32.zip | |
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>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/dmatest.txt | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/Documentation/dmatest.txt b/Documentation/dmatest.txt index 9a90729bdee6..3e17b55a8ba3 100644 --- a/Documentation/dmatest.txt +++ b/Documentation/dmatest.txt @@ -36,6 +36,18 @@ in the original code. 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 |