From mboxrd@z Thu Jan  1 00:00:00 1970
From: "Stuart MacDonald" <stuartm@connecttech.com>
Subject: RE: Serial custom speed deprecated?
Date: Fri, 25 Aug 2006 11:01:38 -0400
Message-ID: <043201c6c857$5ddd6c20$294b82ce@stuartm>
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To: 'Alan Cox' <alan@lxorguk.ukuu.org.uk>, 'Krzysztof Halasa' <khc@pm.waw.pl>
Cc: 'David Woodhouse' <dwmw2@infradead.org>, linux-serial@vger.kernel.org, 'LKML' <linux-kernel@vger.kernel.org>

From: On Behalf Of Alan Cox
> At this point I think we need
> 
> -	An ioctl to set/get the actual baud rate input/output
> -	Some kind of termios flag to indicate they are being 
> used (as we have
> CBAUDEX now). [We could "borrow" the 4Mbit one and dual use it IMHO]
> 
> For drivers tty_get_baud_rate would return the actual speed as before.
> 
> We would need a driver ->set_speed method for the cases where
> - ioctl is called to set specific board rate
> - OR termios values for tty speed change
> - While we are at it we might want to make ->set_termios also 
> allowed to fail
> 
> [and if you had no ->set_speed method non standard speeds would be
> refused by the tty layer for back compat]
> 
> Anyone got any problems with this before I go and implement it ?

Sounds good.

..Stu