STREAMS Modules                                        usbah(7M)



NAME
     usbah - USB audio HID STREAMS module

DESCRIPTION
     The usbah STREAMS module enables the USB input control dev-
     ice  which  is  a member of the Human Interface Device (HID)
     class and provides support for volume change and  mute  but-
     ton.  The  usbah  module  is  pushed  on top of a HID class
     driver instance (see hid(7D)) and  below  an  Audio  Control
     class  driver  instance  (see usbac(7D)). It translates the
     HID specific events to the events that are supported by  the
     Solaris audio mixer framework.

FILES
     /kernel/strmod/usbah

         32-bit ELF kernel STREAMS module. (x86 platform only.)


     /kernel/strmod/sparcv9/usbah

         SPARC 64-bit ELF kernel STREAMS module


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



     
           ATRIBUTE TYPE               ATRIBUTE VALUE       
    
     Architecture                 PCI-based systems           
    
     Availability                 SUNWusb                     
    
     Interface Stability          Evolving                    
    


SEE ALSO
     mixerctl(1),  hid(7D),  usba(7D),  usbac(7D),   usbas(7D),
     usbmid(7D), audio(7I), mixer(7I)


     STREAMS Programming Guide


     System Administration Guide: Basic Administration





SunOS 5.11          Last change: 27 Sep 2004                    1






STREAMS Modules                                        usbah(7M)



     Universal Serial Bus Specification 1.0 and 1.1


     Device Class Definition for Human  Interface  Devices  (HID)
     1.1

DIAGNOSTICS
     None

NOTES
     If USB audio drivers are not loaded,  buttons  will  not  be
     active.











































SunOS 5.11          Last change: 27 Sep 2004                    2