[alsa-devel] [PATCH 1/2] thinkpad-acpi: Try to use full software mute control

[Henrique de Moraes Holschuh]

On Thu, 16 Oct 2014, Andy Lutomirski wrote:
> On Thu, Oct 16, 2014 at 11:54 AM, Henrique de Moraes Holschuh
> <hmh at hmh.eng.br> wrote:
> So the question is: are there IBM models (or models that don't send
> KEY_MUTE, anyway) that nonetheless expose HAUM and SAUM?  If not, then
> my patch should be okay.  If so, we'll need further filtering.

No, these were introduced in the X61/T61.  Still, the standard paranoia
applies, and you should check for HAUM/SAUM only on VENDOR_LENOVO, and
assume they don't exist (because if they do, they are something else) for
VENDOR_IBM.

-- 
  "One disk to rule them all, One disk to find them. One disk to bring
  them all and in the darkness grind them. In the Land of Redmond
  where the shadows lie." -- The Silicon Valley Tarot
  Henrique Holschuh