linux-kernel - Re: tiny tty driver sample

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Message-ID: <45EEFBA0.7030101@zytor.com>
Date:	Wed, 07 Mar 2007 09:51:28 -0800
From:	"H. Peter Anvin" <hpa@...or.com>
To:	Alan Cox <alan@...rguk.ukuu.org.uk>
CC:	Jiri Kosina <jikos@...os.cz>, Jon Ringle <JRingle@...tical.com>,
	linux-kernel@...r.kernel.org
Subject: Re: tiny tty driver sample

Alan Cox wrote:
>> I guess something like
>>
>> 	tty_buffer_request_room(tty, data_size);
>> 	for (i = 0; i < data_size; ++i)
>> 		work += tty_insert_flip_char(tty, data[i], TTY_NORMAL);
>> 	if (work)
>> 		tty_flip_buffer_push(tty);
> 
> 
> Unless data_size can be very large and high speed then you can replace the
> lot with
> 
> 	if (tty_insert_flip_string(tty, data, data_size))
> 		tty_flip_buffer_push(tty);
> 

What does "very large and high speed" mean in this context?

	-hpa
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