From: Alan <alan@lxorguk.ukuu.org.uk>
To: Christopher Meller <cmeller@innominate.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: Question on tty line discipline
Date: Wed, 28 Feb 2007 15:37:02 +0000 [thread overview]
Message-ID: <20070228153702.0e172fa1@lxorguk.ukuu.org.uk> (raw)
In-Reply-To: <20070228134711.GA8631@innominate.com>
On Wed, 28 Feb 2007 14:47:12 +0100
Christopher Meller <cmeller@innominate.com> wrote:
> Hi,
>
> I have a question concerning the line discipline behaviour for serial
> devices.
> When the line discipline is set via ioctl from user space to e.g. N_PPP and the userspace program returns without resetting the line discipline back to N_TTY, the serial device cannot be used (ENODV) until an appropriate ioctl (to N_TTY) is performed. Is there any reason for the fact that the line discipline is not reset by the kernel , when closing the device.
No special reason, it has simply always been that way. Getty and friends
are expected to put the tty back into a sane state.
next prev parent reply other threads:[~2007-02-28 14:33 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-02-28 13:47 Christopher Meller
2007-02-28 15:37 ` Alan [this message]
2007-03-03 20:00 ` Tilman Schmidt
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