Serial port speed

From: Fred N. van Kempen <>
Date: Tue Aug 3 00:07:26 2004

On Mon, 2 Aug 2004, Fred Cisin wrote:

> But, admittedly, if you tried to do serial I/O using the BIOS
> routines, then you might very well be limited to not much over
> 300 baud.
Correct, that is why we all wrote and/or installed our own handlers
that did dual-ring buffering, better handshaking and, if needed,
custom line speeds and/or protocols.

> Joe Campbell's "C Programmer's Guide to Serial Communications"
> has plenty of good info, although he and I didn't completely
> agree about his level of "data hiding".
Oo, the "Blue Book". Good info, but, indeed, his Virtual UART
stuff kinda sucked.

Received on Tue Aug 03 2004 - 00:07:26 BST

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