kldload snd_driver only detected my USB Headset and loaded theusb audio driver. 
It did not detect my CMI8788 (ASUS Xonar DX PCIe)and snd_cmi does not support 
it.

cat /dev/sndstat generated this:
FreeBSD Audio Driver (newpcm: 64bit 2009061500/amd64)Installed devices:pcm0: 
<USB audio> (play/rec) default
Which is my Logitech USB headset, not my PCIe sound card.
The boot generated a message stating "Unsupported Sound Carddetected. Please 
contact li...@support.freebsd.org with soundcard make and model."


> Date: Mon, 27 Aug 2012 11:24:30 +0100
> From: ja...@kode5.net
> To: freebsd-questions@freebsd.org
> Subject: Re: CMI8788 audio card/chip support
> 
> [ Polytropon wrote on Mon 27.Aug'12 at  4:10:57 +0200 ]
> 
> > On Mon, 27 Aug 2012 02:01:34 +0000, James Powell wrote:
> > > 
> > > Are any plans being made to start support for these audio cards?
> > > Currently I'm using one in a system I would like to use with
> > > FreeBSD but it has no support through the kernel and driver
> > > support from OSSv4 lands me with a system that either freezes
> > > or won't boot properly.
> > 
> > Interesting. I've been using a CMI-based sound card with
> > FreeBSD 4, 5 and 7 already. See "man snd_cmi":
> > 
> > HARDWARE
> >      The snd_cmi driver supports the following sound cards:
> > 
> >      ·   CMedia CMI8338A
> >      ·   CMedia CMI8338B
> >      ·   CMedia CMI8738
> >      ·   CMedia CMI8738B
> > 
> > It lists older CMI8788 as supported devices. Doesn't it
> > provide sufficient compatibility?
> 
> Have you tried loading the generic driver to see if your audio card is picked 
> up:
> 
>       # kldload snd_driver
> 
> then try 
> 
>       # cat /dev/sndstat
> 
> which will show more info about it? That's what's recommended in the handbook.

                                          
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