| snd_hda.4 (163139) | snd_hda.4 (164752) |
|---|---|
| 1.\" Copyright (c) 2006 Joel Dahl <joel@FreeBSD.org> 2.\" All rights reserved. 3.\" 4.\" Redistribution and use in source and binary forms, with or without 5.\" modification, are permitted provided that the following conditions 6.\" are met: 7.\" 1. Redistributions of source code must retain the above copyright 8.\" notice, this list of conditions and the following disclaimer. --- 8 unchanged lines hidden (view full) --- 17.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 18.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 19.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 20.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 21.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 22.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 23.\" SUCH DAMAGE. 24.\" | 1.\" Copyright (c) 2006 Joel Dahl <joel@FreeBSD.org> 2.\" All rights reserved. 3.\" 4.\" Redistribution and use in source and binary forms, with or without 5.\" modification, are permitted provided that the following conditions 6.\" are met: 7.\" 1. Redistributions of source code must retain the above copyright 8.\" notice, this list of conditions and the following disclaimer. --- 8 unchanged lines hidden (view full) --- 17.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 18.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 19.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 20.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 21.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 22.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 23.\" SUCH DAMAGE. 24.\" |
| 25.\" $FreeBSD: head/share/man/man4/snd_hda.4 163139 2006-10-08 19:57:53Z joel $ | 25.\" $FreeBSD: head/share/man/man4/snd_hda.4 164752 2006-11-29 17:07:02Z joel $ |
| 26.\" | 26.\" |
| 27.Dd October 8, 2006 | 27.Dd November 29, 2006 |
| 28.Dt SND_HDA 4 29.Os 30.Sh NAME 31.Nm snd_hda 32.Nd "Intel High Definition Audio bridge device driver" 33.Sh SYNOPSIS 34To compile this driver into the kernel, place the following lines in your 35kernel configuration file: --- 32 unchanged lines hidden (view full) --- 68logical successor of the old AC'97 specification and has several advantages, 69such as higher bandwidth which allows more channels and more detailed formats, 70support for several logical audio devices, and general purpose DMA channels. 71.Pp 72The HDA specification defines the register-level interface, physical link 73characteristics, codec programming models, and codec architectural components. 74This specification is intended for both device driver developers and hardware 75component designers. | 28.Dt SND_HDA 4 29.Os 30.Sh NAME 31.Nm snd_hda 32.Nd "Intel High Definition Audio bridge device driver" 33.Sh SYNOPSIS 34To compile this driver into the kernel, place the following lines in your 35kernel configuration file: --- 32 unchanged lines hidden (view full) --- 68logical successor of the old AC'97 specification and has several advantages, 69such as higher bandwidth which allows more channels and more detailed formats, 70support for several logical audio devices, and general purpose DMA channels. 71.Pp 72The HDA specification defines the register-level interface, physical link 73characteristics, codec programming models, and codec architectural components. 74This specification is intended for both device driver developers and hardware 75component designers. |
| 76.Ss Runtime Configuration 77The following 78.Xr sysctl 8 79variables are available in addition to those available to all 80.Xr sound 4 81devices: 82.Bl -tag -width ".Va dev.pcm.%d.polling" -offset indent 83.It Va dev.pcm.%d.polling 84Experimental polling mode, where the driver operates by querying the device 85state on each tick using 86.Xr callout 9 . 87Polling is disabled by default. 88Do not enable it unless you are facing weird interrupt problems or if the 89device cannot generate interrupts at all. 90.El |
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| 76.Sh HARDWARE 77The 78.Nm 79driver supports the following audio chipsets: 80.Pp 81.Bl -bullet -compact 82.It 83ATI SB450 --- 92 unchanged lines hidden --- | 91.Sh HARDWARE 92The 93.Nm 94driver supports the following audio chipsets: 95.Pp 96.Bl -bullet -compact 97.It 98ATI SB450 --- 92 unchanged lines hidden --- |