Comment 8 for bug 1181593

Raymond yes. The subwoofer is in 0x10 node. Yes your pinout work (the actual hp-dv7-4000 already in kernel do it to, similar).
About the volume control seems your patch is OK, but I didn't test yet.

I already write a patch for mine mode specific case ( almost copy paste and changed the zephyr one ), I'm to be out for one week (family problems) and I'm glad to test it and post mine solution when back.
Thank you for yr attention.
This single thing can solve a lot of readache.
:-)