On Wed, Oct 28, 2009 at 04:16:49PM +0900, Joonyoung Shim wrote:

I have a question about soc jack. I know the soc jack reports the jack status when the jack status is change only. For example when the jack is inserted or released, the soc jack reports the jack status to user via input subsystem.

But i want to know the jack status always regardless of the event to insert or release a jack. For example we can check the jack status always if the jack status is reported via sysfs file.

So, is there how to know the jack status always the currently?

You can query this with an ioctl() on the input device - EVIOCGSW() should do the trick, evtest.c has some example code I believe. Adding this information to sysfs would be nice if someone has the time to look into it.