[ale] 16C550 Uarts

Chris Fowler ChrisF at computone.com
Wed Aug 15 17:32:04 EDT 2001





I'm using it in an extremely hacked up version of tip that I found in Linux Application Development by Johnson Troan.  Of course I've added many features and striped out popt support.  Not all flavors of Unix support popt.  Even with getopt, I'm having to port the getopt.c code over with my version of tip.  The tip in the book is licensed by Mr Troan.  TO OpenSource it, I will eventually have to strip out all

of his code.  Every piece.




But,  I'm toggling RTS to test our devices and make sure they are properly using HW flow control.  


Chris


-----Original Message-----
From: Leonard Thornton [mailto:Leonard at Intelis-inc.net]
To: ale at ale.org
Sent: Wednesday, August 15, 2001 5:32 PM
To: Chris Fowler
Cc: ale at ale.org
Subject: Re: [ale] 16C550 Uarts



If I remember correctly, enabling flow control of any kind does not affect 
the uart itself, but the device driver that is handling the uart.  If you 
take charge of the line from the driver, you are responsible for the care 
and feeding of the flow.



At 05:22 PM 8/15/2001 -0400, you wrote:


>Is there any problem with enabling a serial port for hardware flow control 
>and then taking charge of my RTS line with TIOCMSET?  Will this cause a 
>conflict with the uart itself?
>
>Thanks,
>Chris
>
>---------------------------------
>Engineering Services Manager
>Computone Corporation
>1060 Windward Ridge Pkwy, S100
>Alpharetta, GA 30005
>800-241-3946 x1627


The difficult while you wait.....the impossible overnight.


Leonard Thornton
Intelis, Inc.
5960 Crooked Creek Rd
Suite 30
Norcross, GA  30092


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