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- Newsgroups: comp.os.linux
- Path: sparky!uunet!enterpoop.mit.edu!bloom-beacon!bloom-picayune.mit.edu!daemon
- From: Theodore Ts'o <tytso@Athena.MIT.EDU>
- Subject: Re: Serial I/O in 99pl3-4
- Message-ID: <1993Jan25.032931.24421@athena.mit.edu>
- Sender: daemon@athena.mit.edu (Mr Background)
- Reply-To: tytso@Athena.MIT.EDU
- Organization: The Internet
- Date: Mon, 25 Jan 1993 03:29:31 GMT
- Lines: 19
-
- From: edmonds@cs.ubc.ca (Brian Edmonds)
- Date: 23 Jan 93 20:19:48 GMT
-
- Well, I'm not exactly having trouble, but the behaviour did change when
- I went from p0 to p3 (might have been p2 to p3 even, I'm fuzzy on that
- :). The ports generally seem to work fine, except for one anomaly.
- When I hang up from our local annex, I used to get the NO CARRIER
- message from the modem when it disconnected. Now, instead, I get no
- message, and if I type anything to the modem after the disconnet, I get
- an I/O error (unable to write or somesuch). So far this hasn't been a
- problem, but it does seem to indicate a bug somewhere. BTW, I'm not
- using the serial autoconfigure option.
-
- Ah.... that's a new feature, to make serial driver POSIX complaint: when
- carrier is dropped, the rough equivelent of a vhangup() is executed. If
- you want to avoid this, set the CLOCAL flag on the serial line.
-
- - Ted
-
-