On Wed, Jun 04, 2008 at 12:38:14AM +0100, Mark Brown wrote:

There is an additional motivation for using an input device for jacks -
it is common to support a button implemented by shorting the microphone
connection as well as simply detecting the presence of something in the
jack.

Hi Dimitry,

Do you have any further thoughts on this?  I'd really like to get this
in during 2.6.28 if possible but it really needs your feedback.

Thanks,
Mark