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- Newsgroups: comp.sys.apollo
- Path: sparky!uunet!gumby!wupost!sdd.hp.com!apollo.hp.com!netnews
- From: smv@apollo.hp.com (Steve Valentine)
- Subject: Re: High speed modem attached to 3500
- Sender: usenet@apollo.hp.com (Usenet News)
- Message-ID: <Bt9C4B.IJ@apollo.hp.com>
- Date: Thu, 20 Aug 1992 01:00:11 GMT
- References: <sasblc.714248243@ddt>
- Nntp-Posting-Host: dreaming.ch.apollo.hp.com
- Organization: Hewlett-Packard Corporation, Chelmsford, MA
- Lines: 20
-
- As Jim Rees already said, the 3500 uses the 2681, which a) has no fifos
- and b) is not at all compatible with the SIO chips used in PCs.
-
- You didn't say what version of Domain/OS you're running.
- If you're not already up to sr10.4, you should consider upgrading.
- The kernel tty buffers were increased to 2K from 256/512 in sr10.2/sr10.3.
-
- You might also try hardware (RTS/CTS) flow-control if your modem supports it.
- Use: tctl -rts_enable -cts_enable
- or see the Apollo extentions to the POSIX termios interface in sr10.4.
-
- >P.S. What's the difference between using /dev/sio1 vs. /dev/tty01? They
- > both seem to work with kermit.
-
- The only difference is that /dev/tty devices block waiting for carrier (DCD)
- on open (if O_NONBLOCK/FNDELAY is not specified) and /dev/sio ignores carrier.
- --
- Steve Valentine - smv@apollo.hp.com
- Hewlett-Packard Company, Apollo Systems Division, Chelmsford, MA
- Hermits have no peer pressure. -Steven Wright
-