On Fri, Feb 17, 2012 at 12:21:53PM +0530, Omair Mohammed Abdullah wrote:

If I need to call a codec driver function whenever Headset status changes (to set various registers, turn off micbias etc.). In such a case, can the jack_status_check callback in snd_soc_jack_gpio structure be used? If I use it, I would need to modify the callback to pass certain parameters (codec pointer, status). Is this the intended use of the callback?

I rather suspect you shouldn't be doing that and should be doing something else instead (probably using the notifiers) but without seeing what you're trying to accomplish it's hard to comment in detail.