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Date:      Sat, 16 Sep 2000 23:46:16 +0900
From:      Ushine Hiroyuki <ush@netlab.is.tsukuba.ac.jp>
To:        multimedia@freebsd.org
Subject:   Re: Anyone with i810 hardware?
Message-ID:  <20000916234616A.ush@netlab.is.tsukuba.ac.jp>
In-Reply-To: <20000914185003.D46076@sunbay.com>
References:  <20000912110456.A986@spirit.jaded.net> <20000914185003.D46076@sunbay.com>

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ru> There is already a working version of the i810 sound driver:
ru> 
ru> 	http://www.katsurajima.seya.yokohama.jp/ich/
This driver(September 8,2000) have following problems yet.

*PROBLEMS
1) It is designed for 4.1-stable, not for -current.

2) It assume AC'97 codec have VSR (Variable Sample Rate) extension
   in AC'97 rev 2.1 Appendix A, but many codecs(YAMAHA's except YMF-
   752, AvanceLogic ALC100, ...) don't have it.
   You can play and record 48KHz/16bit/2ch sound format only,
   if your chip don't have it.

3) When I/O load is heavy, it causes 'play interrupt timeout',
   and can't continue playing.


* HOW TO INSTALL
1) download ich.c.gz(6632Bytes, MD5:edc8cda20a9330ffd8ad56cd850a43ad)
  http://www.katsurajima.seya.yokohama.jp/ich/ich.c.gz

2) extract and copy to src tree.
gunzip ich.c.gz
cp ich.c /usr/src/sys/dev/sound/pci

3) append following line to /usr/src/sys/conf/files.
dev/sound/pci/ich.c optional pcm pci

4) build kernel and install
 (if you want to specify configfile, KERNEL=<your config file>)
cd /usr/src
make buildkernel
make installkernel







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