From: Jiri Slaby <jirislaby@gmail.com>
To: Mockern@yandex.ru
Cc: linux-kernel@vger.kernel.org
Subject: Re: Linux tty driver question
Date: Sat, 17 Feb 2007 12:01:40 +0100 [thread overview]
Message-ID: <45D6E094.8030006@gmail.com> (raw)
In-Reply-To: <45D6D3A3.000001.04520@tide.yandex.ru>
Mockern napsal(a):
> Hi,
>
> I'm working on Linux tty driver (based on tiny_tty).
>
> How can I provide in my driver Linux cat operation (e.g.cat < ttyS3)?
call tty_insert_flip_*() from somewhere to put some data into tty recieve
buffer, which is pushed into ldisc by tty_flip_buffer_push() and then sent by
tty_read function (where ldisc read is called) to userspace for reading process.
> What should I implement exactly?
open, settermios, write_room (note that this is minimal and will probably oops
when poll or write is invoked) + some isr or timer to fill the buffer mentioned
above.
regards,
--
http://www.fi.muni.cz/~xslaby/ Jiri Slaby
faculty of informatics, masaryk university, brno, cz
e-mail: jirislaby gmail com, gpg pubkey fingerprint:
B674 9967 0407 CE62 ACC8 22A0 32CC 55C3 39D4 7A7E
Hnus <hnus@fi.muni.cz> is an alias for /dev/null
next prev parent reply other threads:[~2007-02-17 11:01 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-02-17 10:06 Linux tty driver question Mockern
2007-02-17 11:01 ` Jiri Slaby [this message]
2007-02-17 11:27 ` Mockern
2007-02-17 12:55 ` Jiri Slaby
2007-02-17 13:05 ` Mockern
2007-02-27 9:46 ` Jiri Slaby
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