Manual Pages for UNIX Operating System command usage for man audio_engine_format

Driver Entry Points                       audio_engine_format(9E)



NAME
     audio_engine_format - return the sample format for an  audio
     engine

SYNOPSIS
     #include 

     int prefix_format(void *state);


PARAMETERS
     state    pointer to driver supplied soft state


INTERFACE LEVEL
     Solaris DDI specific (Solaris DDI)

DESCRIPTION
     The audio_engine_format() function is called by  the  frame-
     work to determine the format of the engine.


     The audio framework supports the following formats for audio
     engines:

     AUDIO_FORMAT_S16_LE    16-bit signed  little  endian  linear
                            PCM


     AUDIO_FORMAT_S16_BE    16-bit signed big endian linear PCM


     AUDIO_FORMAT_S24_LE    24-bit signed  little  endian  linear
                            PCM


     AUDIO_FORMAT_S24_BE    24-bit signed big endian linear PCM


     AUDIO_FORMAT_S32_LE    32-bit signed  little  endian  linear
                            PCM


     AUDIO_FORMAT_S32_BE    32-bit signed big endian linear PCM



     The 24-bit bit types above store each  24-bit  sample  in  a
     32-bit word.






SunOS 5.11          Last change: 16 Apr 2010                    1






Driver Entry Points                       audio_engine_format(9E)



     An audio engine may not change the format it uses  while  it
     is open.

RETURN VALUES
     The audio_engine_format() function returns the audio  format
     of the engine.

CONTEXT
     This function may be called from user or interrupt context.

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



     ____________________________________________________________
    |       ATTRIBUTE TYPE        |       ATTRIBUTE VALUE       |
    |_____________________________|_____________________________|
    | Interface Stability         | Committed                   |
    |_____________________________|_____________________________|


SEE ALSO
     attributes(5), audio(7D), audio_engine_ops(9S)






























SunOS 5.11          Last change: 16 Apr 2010                    2