From: Alan Cox <alan@lxorguk.ukuu.org.uk>
To: linux-kernel@vger.kernel.org, mansarov@us.ibm.com
Subject: Re: tty_flip_buffer
Date: Fri, 18 Nov 2005 01:08:42 +0000 [thread overview]
Message-ID: <1132276122.25914.23.camel@localhost.localdomain> (raw)
On Maw, 2005-11-15 at 15:38 -0600, V. Ananda Krishnan wrote:
> tty_insert_flip_string_flags() API? When I looked into the
> implementation of the tty_insert_flip_string_flags API in tty_io.c, I
> was little confused.
The flags buffer is used to hold the state of each character. Its
usually TTY_NORMAL and is set to TTY_NORMAL by the functions not taking
a flag value. It serves the same task as the flag buffer in the old
tty_flip.
> Also, can any one explain me the function of the free queue head in the
> struct tty_bufhead?
Private to the tty layer pointer to allow small buffers as used with
byte at a time uarts to be recycled not freed/allocated
Alan
next reply other threads:[~2005-11-18 0:37 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-11-18 1:08 Alan Cox [this message]
-- strict thread matches above, loose matches on Subject: below --
2005-11-15 21:38 tty_flip_buffer V. Ananda Krishnan
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