Ubuntu – 12.04 – How to update ALSA driver to 1.0.25

I have a relatively new Intel "Ultrabook", the HP Envy Spectre XT. It has the IDT 92HD99 sound card. Support for this was added to ALSA 1.0.25 based on this changelog:

http://www.alsa-project.org/main/index.php?title=Changes_v1.0.24_v1.0.25&action=edit

However the ALSA driver version in Ubuntu 12.04 is 1.0.24. Can someone explain how to update the ALSA driver to 1.0.25? The alsa-base package says it's using a package version 1.0.25-dfsg-0ubuntu1.

Here is my ALSA version info:

!!ALSA Version
!!————

Driver version: 1.0.24
Library version: 1.0.25
Utilities version: 1.0.25

I think I need to get that "Driver version" up to 1.0.25 to get support for my hardware. Any help? Thanks.