User Commands                                         mixerctl(1)



NAME
     mixerctl - audio mixer control command line application

SYNOPSIS
     /usr/sbin/mixerctl [-a  -d dev] [-iv] [-e  -o]


DESCRIPTION
     Some audio devices support the  audio  mixer  functionality.
     See mixer(7I) for a complete description of the audio mixer.
     The mixerctl command is used to  control  the  mode  of  the
     audio mixer and to get information about the audio mixer and
     the audio device. See audio(7I) for details.

OPTIONS
     The following options are supported. If none are  specified,
     option -i is assumed:

     -a         The command applies to all audio devices.


     -d dev     The dev argument  specifies  an  alternate  audio
                control device for the command to use.


     -e         Enables the audio mixer  function  if  the  audio
                device supports it. If supported, the audio mixer
                may be enabled at any time. The command  silently
                ignores  the  enable option if the audio mixer is
                already enabled.


     -i         Prints the audio device type information for  the
                device  and  indicates  whether  the audio device
                uses the audio mixer. If the device does use  the
                audio  mixer,  this  option  displays  the  audio
                mixer's mode.


     -o         Turns off the audio mixer function if  the  audio
                device supports it. If supported, the audio mixer
                may be turned off if only  one  process  has  the
                device  opened  with  the ORDWR flag, or, if two
                different processes have the device  opened,  one
                with  the  ORDONLY  flag  and the other with the
                OWRONLY  flag.  (See   open(2).)   The   command
                silently  ignores the disable option if the audio
                mixer function is already disabled.


     -v         Verbose mode. Prints the  audioinfot  structure
                for  the  device,  along  with  the  device  type



SunOS 5.11          Last change: 12 Mar 2001                    1






User Commands                                         mixerctl(1)



                information. This option implies the -i option.


ENVIRONMENT VARIABLES
     AUDIODEV     If the -d and -a options are not specified, the
                  AUDIODEV  environment variable is consulted. If
                  set, AUDIODEV will contain the full  path  name
                  of the user's default audio device. The default
                  audio device will be converted into  a  control
                  device, and then used. If the AUDIODEV variable
                  is not set, /dev/audioctl is used.


FILES
     /dev/audioctl


     /dev/sound/{0...n}ctl

ATRIBUTES
     See attributes(5) for descriptions of the  following  attri-
     butes:



     
           ATRIBUTE TYPE               ATRIBUTE VALUE       
    
     Architecture                 SPARC, x86                  
    
     Availability                 SUNWauda                    
    
     Stability Level              Evolving                    
    


SEE ALSO
     audioconvert(1),  audioplay(1),   audiorecord(1),   open(2),
     attributes(5),   usbac(7D),  audio(7I),  audiosupport(7I),
     mixer(7I)















SunOS 5.11          Last change: 12 Mar 2001                    2