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Date: Sat, 17 Feb 2007 14:27:51 +0300 (MSK) From: "Mockern" <Mockern@...dex.ru> To: jirislaby@...il.com Cc: linux-kernel@...r.kernel.org Subject: Re: Linux tty driver question Thank you, I have no problem with my tty driver, except one thing: it does not work with cat (but there are no problems to write,read from user space application). I'll try to follow your adwise to support cat. >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, -- Сегодня удачный день, чтобы завести почту на Яндексе http://mail.yandex.ru - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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