[BRLTTY] BRLTTY and Seika 40 display

[Sébastien Hinderer]

Hi again Michel,

> At the moment, there are buitin drivers for HandyTech displays and 
> FreedomScientific Packmate.
> 
> But all this is very new, I guess there will be others.

It may be wise to think about it very deeply before including braille
drivers into nvda rather than using something like brltty.
Indeed, if a braille device is supported by brltty, including a driver
for this device in NVDA does not only duplicate code, it will also
prevent concurrent access to the display.
In other words, when a display is accessed through brltty, the display
can be used simultaneously by other programs, and brltty will always now
hat it should display, depending on which application has focus.
Most probably, a driver included in NVDA would not have such a
functionality.

> Some displays seem to work fine thru brltty, but I have problems with this 
> Seika.
> 
> I also have a problem with my office Braillex El 80 2d which does not seem 
> to even be recoghized.

Solving these problems seems a very good idea.

Sébastien.