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SubjectRe: tiny tty driver sample
On Wed, 7 Mar 2007, Jon Ringle wrote:

> I'm trying to write a tty driver and I'm using
> http://lwn.net/images/pdf/LDD3/ch18.pdf as a guide. The sample tiny tty
> driver includes the following code:
> for (i = 0; i < data_size; ++i) {
> if (tty->flip.count >= TTY_FLIPBUF_SIZE)
> tty_flip_buffer_push(tty);
> tty_insert_flip_char(tty, data[i], TTY_NORMAL);
> }
> tty_flip_buffer_push(tty);
> This doesn't compile against Linux 2.6.16 kernel I'm using, because
> tty->flip.count doesn't exist anymore. How should this sample be
> re-coded?

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);

will do.

--
Jiri Kosina
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