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Message-ID: <20070221161712.4f7ee621@lxorguk.ukuu.org.uk> Date: Wed, 21 Feb 2007 16:17:12 +0000 From: Alan <alan@...rguk.ukuu.org.uk> To: akpm@...l.org, linux-kernel@...r.kernel.org Subject: [PATCH] tty: Clarify documentation of ->write() The tty driver write method is different to the usual fops device write methods as the buffer is already in kernel space. Clarify the docs since someone writing a driver made that mistake. Signed-off-by: Alan Cox <alan@...hat.com> diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.vanilla-2.6.20-mm2/Documentation/tty.txt linux-2.6.20-mm2/Documentation/tty.txt --- linux.vanilla-2.6.20-mm2/Documentation/tty.txt 2007-02-20 12:32:28.000000000 +0000 +++ linux-2.6.20-mm2/Documentation/tty.txt 2007-02-21 14:56:36.521024464 +0000 @@ -108,7 +108,9 @@ structure: write() Write a block of characters to the tty device. - Returns the number of characters accepted. + Returns the number of characters accepted. The + character buffer passed to this method is already + in kernel space. put_char() Queues a character for writing to the tty device. If there is no room in the queue, the character is - 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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