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Author SHA1 Message Date
Jaroslav Kysela
2389f04541 ucm: doc - describe variants, minor corrections 
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
 2022-05-19 10:18:38 +02:00
Jaroslav Kysela
4b66e5fbce ucm: implement enadev2 and disdev2 sequence commands 
It may be useful to call the sequences from devices from
the verb sequences or another device sequences.

Signed-off-by: Jaroslav Kysela <perex@perex.cz>
 2022-05-19 10:08:50 +02:00
Jaroslav Kysela
d7d5c724ed ucm: implement MacroDefine and Macro subtree evaluation 
The arguments are set as temporary variables as /MACRO_NAME/_/ARGUMENT_NAME/.

Example:

  # define new macro MyMacro with arguments ctl_name and ctl_value
  DefineMacro.MyMacro {
    BootSequence [
      cset "name='${var:MyMacro_ctl_name}' ${var:MyMacro_ctl_value}"
    ]
  }

  # instantiate macro for Speaker control (short version)
  Macro.headphone.MyMacro "ctl_name='Speaker Switch',ctl_value=off"

  # instantiate macro for Mic control (second version)
  Macro.mic.MyMacro {
	ctl_name "Mic Switch"
	ctl_value "off"
  }

Signed-off-by: Jaroslav Kysela <perex@perex.cz>
 2022-05-13 17:25:29 +02:00
Jaroslav Kysela
d65b1c7b52 ucm: add ${evali:} substitution 
Example:

  Define.var1 2

  LibraryConfig.test.SubstiConfig {
          a "${evali:$var1+1}"
  }

Signed-off-by: Jaroslav Kysela <perex@perex.cz>
 2022-05-13 16:10:51 +02:00
Jaroslav Kysela
2623e4bb76 ucm: add initial doxygen documenation 
This is an attempt to explain the UCM in a more verbose way.

BugLink: https://github.com/alsa-project/alsa-ucm-conf/issues/103
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
 2021-12-01 10:33:44 +01:00