home *** CD-ROM | disk | FTP | other *** search
- This directory contains the BRLTTY driver for the Focus and PacMate braille
- displays from Freedom Scientific [http://www.freedomscientific.com]. It has
- been implemented, and is being maintained, by Dave Mielke <dave@mielke.cc>.
-
- The serial and USB ports are both supported. The following models are
- recognized:
- * Focus: 44, 70, 84
- * Focus 2: 40, 80
- * PAC Mate: 20, 40, 80
-
- If an unrecognized model is connected then the driver makes an attempt to
- determine its size and to provide generic capabilities.
-
- The upper row of routing buttons on the PAC Mate are a set of hot keys. They
- provide quick access to various braille display functions and options (see the
- help file for what they actually do). There are three markers at the back of
- the display's top surface, i.e. just behind the routing buttons, which help you
- locate and distinguish each hot key. The keys immediately below the left and
- right markers are the left and right GDF keys. Between them are eight keys ...
- four on each side of the center marker. The buttons between the left GDF key
- and the center marker are named (from left to right) HK1, HK2, HK3, and HK4;
- those between the center marker and the right GDF key are named (from left to
- right) HK5, HK6, HK7, and HK8. Any button to the left of the left GDF key acts
- as the left advance key, and any button to the right of the right GDF key acts
- as the right advance key. The following drawing depicts this layout visually:
-
- ++ ++ ++
- || || ||
- || || ||
- ...+---++---++---++---++---++---++---++---++---++---++---++---++---++---+...
- Left Advance||GDF||HK1||HK2||HK3||HK4||HK5||HK6||HK7||HK8||GDF||RightAdvance
- ...+---++---++---++---++---++---++---++---++---++---++---++---++---++---+...
-
-
- This driver recognizes the following parameters:
-
- Parameter Settings
- debugpackets no, yes
- statuscells 0 (none), positive (left), negative (right)
-
- The "statuscells" parameter specifies how many of the braille cells are to be
- reserved for status indicators. Specify 0 (zero) if you'd like all the cells to
- be used for text, a positive number if you'd like the status cells to be on the
- left, and a negative number if you'd like them to be on the right. The default
- is that the Focus displays have 3 status cells on the left, and that the PAC
- Mate displays have no status cells. An additional blank cell is reserved to
- separate the text and status cells from one another. Use the "Status Style"
- selector of the Preferences Menu to choose the format of the data presented via
- the status cells.
-