[alsa-devel] Question about write asoc driver

Roy Huang royhuang9 at gmail.com
Mon Jul 9 10:50:11 CEST 2007

Hi guys,

I am write a codec driver under asoc frame work for ad1980 by study
the sample driver wm9712.c. I find there are some control item likes
"out3 switch" to control 16h:15. There are also some widget item likes
"out 3 PGA" to control 24:5. How can I determine a register bit should
be a control item or widget item? Thanks ahead.


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