Manual Pages for UNIX Operating System command usage for man audio_dev_resume

Kernel Functions for Drivers                audio_dev_suspend(9F)



NAME
     audio_dev_suspend, audio_dev_resume - suspend or  resume  an
     audio device

SYNOPSIS
     #include 

     void audio_dev_suspend(audio_dev_t *adev);


     void audio_dev_resume(audio_dev_t *adev);


PARAMETERS
     adev    pointer  to   an   audio   device   allocated   with
             audio_dev_alloc(9F)


INTERFACE LEVEL
     Solaris DDI specific (Solaris DDI)

DESCRIPTION
     The  audio_dev_suspend()  function  suspends  all  functions
     associated  with  an  audio device. The intention is for the
     audio driver to call this as the first part of its  handling
     for DDI_SUSPEND in detach(9E).


     The audio_dev_resume() function resumes functionality  asso-
     ciated  with  the audio device. This function will generally
     be  the  last  thing  executed  during  the   handling   for
     DDI_RESUME in attach(9E).


     The framework ensures no entry points  associated  with  the
     audio  device  are  executing while the device is suspended.
     Furthermore, the framework guarantees that any engines  that
     may have been running are stopped with audio_engine_stop(9E)
     before returning  from  audio_dev_suspend().  Those  engines
     will    be   restarted   using   audio_engine_start(9E)   by
     audio_dev_resume().


     Any  control  settings  are  retrieved  during  suspend  and
     restored as during resume.


     The driver must not hold any locks while calling  either  of
     these functions.

CONTEXT




SunOS 5.11          Last change: 21 Apr 2010                    1






Kernel Functions for Drivers                audio_dev_suspend(9F)



     These functions may be called from user  or  kernel  context
     only.

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



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


SEE ALSO
     attributes(5),            audio(7D),             attach(9E),
     audio_engine_start(9E),  audio_engine_stop(9E),  detach(9E),
     audio_dev_add_control(9F), audio_dev_alloc(9F)


     Writing Device Drivers
































SunOS 5.11          Last change: 21 Apr 2010                    2