Rick Engebretson <eng at pinenet.com> wrote: > > I'm trying to rediscover how to control the RS232 UART every PC has two > of. This powerful interface could be more useful, particularly for > process control or robotics. I'm not looking for a driver, unless it is > highly versatile. > > In the original PCs one simply input or output to the UART BIOS address > and the bit field was yours. The DOS driver for the COM ports began the > process of hiding control by adding a new layer. http://www.linuxdoc.org/HOWTO/mini/IO-Port-Programming.html Though even that document recommends using the normal kernel I/O interfaces. http://www.linuxdoc.org/HOWTO/Serial-Programming-HOWTO/ http://www.easysw.com/~mike/serial/serial.html -- _ _ _ _ _ ___ _ _ _ ___ _ _ __ #define EDINGDONG /* The / \/ \(_)| ' // ._\ / - \(_)/ ./| ' /(__ daemon is dead */ \_||_/|_||_|_\\___/ \_-_/|_|\__\|_|_\ __) [ Mike Hicks | http://umn.edu/~hick0088/ | mailto:hick0088 at tc.umn.edu ] -------------- next part -------------- A non-text attachment was scrubbed... Name: not available Type: application/pgp-signature Size: 232 bytes Desc: not available Url : http://shadowknight.real-time.com/pipermail/tclug-list/attachments/20010909/c02ab03b/attachment.pgp