It works for me:
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Starting OSS/FreeBSD 3.99.3d четверг, 19 января 2006 г. 02:31:40 (MSK)
2:31 up 6 mins, 4 users, load averages: 0,17 0,14 0,08
======= config =====
# Use soundconf to edit this file.
/SECUREAUDIO OFF
/IRQEXCLUDE 3 4
/DMAEXCLUDE 2
-PCI26688086 #Intel High Definition Audio (Azalia) *BETA*
HDAUDIO ON
#NEEDS_MMPCI
====== pnpres.dat ========
====================
Config option 'be_quiet=0' defined
Config option 'pnp_reset=1' defined
Config option 'intelpci_rate_tuning=1' defined
Config option 'intelpci_force_mmio=1' defined
OSS/FreeBSD 3.99.3d (C) 4Front Technologies 1996-2004
License serial number: E00000008
**** UNREGISTERED VERSION ****
Drivers: ALL
License will expire after: 06/2006
*** Unregistered version ***
Build: 200601172339
Kernel: FreeBSD 7.0-CURRENT #0: Thu Jan 19 02:21:27 MSK 2006
root@fonon.realnet:/work/src/fbsd-cur/src/sys/i386/compile/FONON
Card config:
Intel High Definition Audio (Azalia) controller at 0xffef8000 irq 16
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FreeBSD current, Realtek chip
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none0@pci0:27:0: class=0x040300 card=0x107c1734 chip=0x26688086 rev=0x04 hdr=0x00
vendor = 'Intel Corporation'
device = '82801FB/FR/FW/FRW Intel High DefiNition Audio Controller'
class = multimedia
pcib2@pci0:28:0:
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There are some issues with mixer, but almost everything works well.