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The Linux Serial HOWTO

David S.Lawyer bf347@lafn.org original by Greg Hankins

v2.00 May 1999


This document describes serial port features other than those which should be covered by Modem-HOWTO, PPP-HOWTO, Serial-Programming-HOWTO, or Text-Terminal-HOWTO. It lists info on multiport serial cards. It contains technical info about the serial port itself in more detail than found in the above HOWTOs and should be best for troubleshooting when the problem is the serial port itself. It doesn't yet cover PnP serial ports but this is covered in Modem-HOWTO. If you are dealing with a Modem, PPP (used for Internet access on a phone line), or Text-Terminal, those HOWTOs should be consulted first.

1. Introduction

2. How It Works --Overview

3. Serial Port Basics

4. Is the Serial Port Obsolete?

5. Multiport Serial Boards/Cards

6. Configuring the I/O Address, IRQ, and Name

7. Interesting Programs You Should Know About

8. Speed (Flow Rate)

9. Communications Programs And Utilities

10. Serial Tips And Miscellany

11. Troubleshooting

12. Interrupt Problem Details

13. What Are UARTs?

14. Pinout and Signals

15. Voltage Waveshapes

16. Other Serial Devices (not async EIA-232)

17. Other Sources of Information


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