[alsa-devel] How can you tell if the speaker jack on your sound card has anything plugged into it???

[Mark Brown]

On Fri, Apr 25, 2008 at 01:29:59PM -0600, Sean Thayne wrote:

>       I was talking with some users in the irc channel in the free node, 
> and was hoping to find a way to get the information about weither or not 
> anything was plugged into the sound card, I've seen this feature with 
> windows vista. I search thru a bunch of documentation sites and also 
> scanned the /proc & /sys to no avail...

There's currently no standard way of getting this information from user
space even where the hardware provides it.