Re: 921Kbps on Linux: is it possible ?!?!

Rogier Wolff (R.E.Wolff@BitWizard.nl)
Wed, 14 Oct 1998 18:05:29 +0200 (MEST)


Linux Lists wrote:
>
> Hello,
>
> I've noticed that in the linux/include/asm/termbits.h there is no
> definition for a baud rate of 921.6Kbps (it only goes up to 460.8Kbps).
> Therefore, it's not possible to use setserial to set a serial port to this
> speed ... is it ?!?!
>
> My question is: do we need to add support to 921.6Kbps in the termbits.h
> file or is there another way to set this speed on a serial port ?!?!

YES YES YES!

Please, add the support for the higher baud rates in the -=interface=-
as soon as possible. Even if Alan says that flip buffers are not large
enough to work at that speed. That's a driver issue that can slowly be
ironed out. But applications should ASAP be able to specify that they
want the higher baudrates.

I hate the people who design stuff with just one bit to spare. This is
similar. We NOW have devices that do 921k6, so, we should expect
double and quadruple that in a couple of years. I don't know what it
will be used for but I don't care. We can finalize the interface NOW
and have generic applications like setserial and minicom be able to
specify that they want 1.8M even if no driver supports that yet.

The interface to malloc 64G of memory has been finalized for years (on
64bit machines), even though no machine has enough RAM to support that
call. Very similar.

Roger.

-- 
| Most people would die sooner than think....  |    R.E.Wolff@BitWizard.nl 
| in fact, most do.  -- Bertrand Russsell      |     phone: +31-15-2137555 
We write Linux device drivers for any device you may have! fax: ..-2138217

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