[BRLTTY] Alva BC640 perkins input

[Dave Mielke]

[quoted lines by Nicholas Dechman on 2012/07/13 at 07:09 -0700]

>So, Dave... I'm just bumping my issue up :)

No problem. I'm still thinking about it.

The FreecomScientific driver (used for your Focus) and the BrailleNote driver 
use a different mechanism for keyboard input than does the Alva driver. This is 
because the FS and BN drivers see the actual keys and send braille dot 
combinations to the core, whereas the Alva driver sees HID packets, which it 
maps to keyboard scan codes.  I'm somewhat mystified, though, because the 
BrlAPI server already does pass these keyboard scan codes to the core.

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