usb_ah(7M)							  STREAMS Modules							usb_ah(7M)

NAME

       usb_ah - USB audio HID STREAMS module

DESCRIPTION

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

FILES

       /kernel/strmod/usb_ah

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

       /kernel/strmod/sparcv9/usb_ah

	   SPARC 64-bit ELF kernel STREAMS module

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Architecture		     |PCI-based systems 	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWusb			   |
       +-----------------------------+-----------------------------+
       |Interface Stability	     |Evolving			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       mixerctl(1), hid(7D), usba(7D), usb_ac(7D), usb_as(7D), usb_mid(7D), audio(7I), mixer(7I)

       STREAMS Programming Guide

       System Administration Guide: Basic Administration

       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 5.10							    27 Sep 2004 							usb_ah(7M)