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# BRLTTY

## Access to the Linux/Unix Console for Blind Persons using Refreshable Braille Displays

## Nikhil Nair `<nn201@cus.cam.ac.uk>`

## Nicolas Pitre `<nico@cam.org>`

## Stéphane Doyon `<s.doyon@videotron.ca>`

## Dave Mielke `<dave@mielke.cc>`

Version 3.4.1, January 2004

Copyright © 1995-2003 by The BRLTTY Team - All Rights Reserved. This is free software, placed under the terms of The GNU General Public License. BRLTTY comes with ABSOLUTELY NO WARRANTY.

## 1. Introduction

- 1.1 Feature Summary
- 1.2 System Requirements

## 2. The Build Procedure

- 2.1 Installed File Hierarchy
- 2.2 Installing from a TAR Ball
- 2.3 Testing BRLTTY
- 2.4 Starting BRLTTY
- 2.5 Security Considerations
- 2.6 Build and Run-Time Restrictions
- 2.7 Installing from an RPM File
- 2.8 Other Utilities

## 3. Using BRLTTY

- 3.1 Commands
- 3.2 The Configuration File
- 3.3 Command Line Options

## 4. Feature Descriptions

- 4.1 Cursor Routing
- 4.2 Cut and Paste
- 4.3 Pointer (Mouse) Support via GPM
- 4.4 Alert Tunes
- 4.5 Preferences Settings
- 4.6 The Status Display
- 4.7 Command Learn Mode
- 4.8 Contracted Braille

## 5. Translation Tables

- 5.1 Text Translation
- 5.2 Attributes Translation
- 5.3 Table Format
- 5.4 Table Utilities

## 6. The Application Programming Interface

## 7. Advanced Topics

- 7.1 Installing Multiple Versions
- 7.2 Installation/Rescue Root Disks for Linux
- 7.3 Future Enhancements
- 7.4 Known Bugs

## 8. Appendices

- 8.1 Supported Braille Displays
- 8.2 Supported Speech Synthesizers
- 8.3 Driver Identification Codes
- 8.4 Braille Dot Numbering Convention
- 8.5 North American Braille Computer Code
- 8.6 MIDI Instrument Table

## 9. Epilogue

- 9.1 Contact Information
- 9.2 License
- 9.3 Disclaimer

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