Re: A new serial baud rate

[henrique <henrique@cyclades.com>]

Hello !!!

FYI, I have done the changes on the kernel to include 14400 bps support. The 
modifications are:

- include/asm-ppc/termbits.h
	- create the define B14400 after B9600 and shift all defines after this.
- drivers/char/tty_io.c
	- add 14400 to baud_table

As you can see, I've done it for a PowerPC. I don't know if it is also quite 
simple for another arch's.

thanks for your feedback
regards
Henrique

On Friday 26 July 2002 01:00 pm, Ed Vance wrote:
> > > On Thu, July 25, 2002 at 12:14 PM, henrique wrote:
> > > > I just wanna know what is the procedure to insert this new baud
> > > > rate (14400) in the linux kernel.
> >
> > On Thu, July 25, 2002 at 2:36 PM, Ed Vance wrote:
> > > If you have a 2.4.x kernel, and your serial ports have "simple"
> > > UARTs like a 16550A, then use the setserial command to directly
> > > set the UART's divisor. See the man page on setserial, which also
> > > has words about how to put the setserial commands into a script
> > > that runs automatically when you boot the system.
> > >
> > > You will have to know the "baud base" rate of your UARTs. This is
> > > the baud rate that you get if you set the divisor to 1 (probably
> > > 115200 bps).
> > >
> > > The new divisor is baud_base / 14400 (which is probably 8).
>
> On Fri, July 26, 2002 at 6:15 AM, henrique wrote:
> > Ed, unfortunately my equipment uses the 2.2.14 kernel.
> > Does your suggestion work in such kernel ? It would be
> > the easiest way to solve this.
>
> Hi Henrique,
>
> I know of no specific reason why it would not work under 2.2. I just
> have no direct experience with the 2.2 kernel and the corresponding
> version of the serial driver. If the setserial functionality that I
> described is in your setserial man page from 2.2, then I think the
> method should work well.
>
> Best regards,
> Ed
>
> ----------------------------------------------------------------
> Ed Vance              edv@macrolink.com
> Macrolink, Inc.       1500 N. Kellogg Dr  Anaheim, CA  92807
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