On Sun, 08 Jul 2018 10:13:55 +0200, Giedrius Trainavičius wrote:
Hello,
Is it possible to 'hide' some of the controls of the codec in the machine driver? The codec I'm using exposes many advanced controls which are useful for board developers, but not for the end user, so I'd like to define my own 'simplified' controls, and take care of board specific logic internally in the machine driver.
I found this old discussion on the topic: https://www.spinics.net/lists/alsa-devel/msg36386.html - I'm targeting kernel 4.14, maybe there's already some means to achieve this?
It is possible, but whether it's appropriate is another question. You can turn the active / inactive state of each ctl via snd_ctl_activate_id() function on the fly, for example.
Takashi