[BRLTTY] Getting my braille driver for the FCHAD working.

[timothyhobbs at seznam.cz]

OK.  I'm happy to see that the CLI arguments are combined with a config file
value so I won't have to create my own cofig files for now.

It seems like you still haven't comprehended my device.  It's really a 
simple device.  I presume that you are reading this message with an 80 cell 
display.  So as you read you run your hand along the characters and feel 
them.  Imagine you only had one cell in your display.  At either the far 
right or the far left, but you had 80 touch sensors.  As your finger moved 
along those touch sensors, the character displayed by that one cell would 
change.  Now that in and of itself wouldn't make a very good display. After 
all if your finger is over a cell but doesn't move it's hard to feel what 
that character is.  So I made a very large cell.  It's actually the size of 
your whole hand.  Either your left or right hand rests upon that large cell,
and your other hand moves along the sensors to select the character you wish
to read.  I know that you're probably (rightfully) suspicious of such a 
display, but I have a working prototype and I CAN read text on it. When I am
done with my improved prototype I will be able to actually show whether this
works or is a dead end.

Timothy


---------- Původní zpráva ----------
Od: Dave Mielke <dave at mielke.cc>
Datum: 18. 10. 2012
Předmět: Re: [BRLTTY] Getting my braille driver for the FCHAD working.
"[quoted lines by timothyhobbs at seznam.cz on 2012/10/18 at 20:37 +0200]

>I have to figure out if the user is left handed or right handed.  This is 
not 
>yet defined by the standard that I wrote.  There are several options:  
brltty 
>could provide this information, and this information could be global to 
>brltty.  My driver could take a special parameter or save a special 
settings 
>file to the users home directory.  This information could be stored on the 
>device.  What do you recommend?

This is the first time that this issue has come up as braille devices tend 
to 
be used by both hands. For my own curiosity, what would such an option do? 
Would it reverse the controls in some way?

The normal way we handle driver-specific needs is to use driver-specific 
parameters. A driver-specific parameter is passed to the driver via the -B 
(uppercase) command line option or via the braille-parameters directive 
within 
the brltty.conf file. The syntax of the operand is:

xx:name=value

The xx, here, is the two-letter driver code. I forget what your two-letter 
driver code is, so let's assume it's th (your initials). Then, for example, 
specifying the parameter would look something like this:

-Bth:handedness=left

-- 
Dave Mielke | 2213 Fox Crescent | The Bible is the very Word of God.
Phone: 1-613-726-0014 | Ottawa, Ontario | 2011 May 21 is the End of 
Salvation.
EMail: dave at mielke.cc | Canada K2A 1H7 | http://Mielke.cc/now.html
(http://Mielke.cc/now.html)
http://FamilyRadio.com/(http://FamilyRadio.com/) | http://Mielke.cc/bible/
(http://Mielke.cc/bible/)
_______________________________________________
This message was sent via the BRLTTY mailing list.
To post a message, send an e-mail to: BRLTTY at mielke.cc
For general information, go to: http://mielke.cc/mailman/listinfo/brltty
(http://mielke.cc/mailman/listinfo/brltty)"
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mielke.cc/pipermail/brltty/attachments/20121018/59e1d4c7/attachment.html>