actually we have voodoo hda (that from the upper post from MR. DarwinX ---always thanks for all yours helps) with:
output speaker, line out,digital out
input mic working (also the built in)
here we are applehda (I've founded it somewhere, it's not mine and I don't know who did it) with:
output speaker, line out, digital out
input line in working (the mic doesn't work, no one)
someone of you knows as to make a fusion of this informations and create a better driver for stac9228 audio chip? well, the two kexts can works alternatively (if you use the hack to rec music you can use applehda for bigger audio signal such as preamplificated signal (guitar amp; preamp mic; mixer etc with no Larsen effect created by a mic---so more noiseless; or you can use voodoohda if you use mic for chat, skype etc);
In the real use, when I rec the guitar, also the mic if well setted works great but I use a pedal board tha works also whit less volumes, teorically the difference is when you use a vst that process your sound and the input come from the mic (ex: connect the guitar in the mic) that is not good for a big signal....or also imagine to connect an Marshall or mesaboogie amp into the mic line: impossible!!!
Of course the m1530 make is job well with the voodoo but if someone of you know how to make something better help us.