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From: chris@ic.UUCP
Newsgroups: comp.sys.hp
Subject: Guts of the tone generator on the 320 system
Message-ID: <1365@ucbcad.berkeley.edu>
Date: Wed, 22-Apr-87 13:08:23 EST
Article-I.D.: ucbcad.1365
Posted: Wed Apr 22 13:08:23 1987
Date-Received: Fri, 24-Apr-87 02:31:17 EST
Sender: news@ucbcad.berkeley.edu
Reply-To: chris@ic (Chris Guthrie)
Organization: University of California, Berkeley
Lines: 11
Keywords: bobcats tones
Summary: How are the tones accessed?

We spent last night playing with the tone generator on our 320s.
Although we were able to get a number of unique and interesting
noises out of them, we couldn't figure out the layout of the
four bytes in the EFTSBP ioctl command (other than the volume and
timer bits).  Can anyone post the layout of these bytes.  Thanks!

(The EFTSBP is the ioctl command for the rhil device which sends
four data bytes to the tone generator.  Beyond that, none of my
documentation details the purpose of those bytes).
	Chris Guthrie
	U.C.B.