On Fri, Feb 10, 2012 at 03:40:36PM +0900, MyungJoo Ham wrote:

> +	[EXTCON_AUDIO_IN]	= "Audio-in",
> +	[EXTCON_AUDIO_OUT]	= "Audio-out",

Can I suggest making these more specific - how about

	[EXTCON_LINE_IN]	= "Line-in",
	[EXTCON_LINE_OUT]	= "Line-out",
	[EXTCON_MIC_IN]		= "Microphone",
	[EXTCON_HEADPHONE_OUT]	= "Headphone",

as a starting point?  The distinction between line and the other two is
often pretty important from a UI/system interaction point of view.

> +	/* TODO: remove before submit */
> +	pr_info("[%s][%d]\n", buffer, enabled);

:)