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Re: [nls-technical] Fwd: Re: Re: chord keyset

To: NLS Restoration Technical Discussion <nls-technical@chm.cim3.net>
Cc: John Sechrest <sechrest@jas.peak.org>, Gary Oliver <go@ao.com>
From: Jonathan Cheyer <jonathan@cheyer.biz>
Date: Tue, 09 May 2006 07:46:51 -0700
Message-id: <4460AB5B.4080307@cheyer.biz>
Hi Phil,    (01)

Yes, this was the idea that I was referring to in my third bullet point 
in my previous response. The link I sent discusses the standard (and 
additional non-standard) keyboard commands that can be sent from a PC 
back to a keyboard. We could pick one of the unused byte combos to 
create a "Augment mode enabled" and "Augment mode disabled" pair of 
commands. That would allow the Java AugTerm to have a way to 
automatically switch between modes when the mouse gives it focus.    (02)

Jonathan    (03)


Philip Gust wrote:
> As I mentioned earlier, it would still be interesting to see whether 
> we can use standard bi-directional PS/2 keyboard protocol to allow 
> the computer to switch between "keyset mode" and "keyboard mode" (see 
> http://www.computer-engineering.org/ps2protocol/). This would enable 
> the Java Augterm to automatically switch into/out of "keyset mode" 
> based on focus.  This brings up the more general point that, if at 
> all possible, the keyset will need to respond to host-to-device 
> communications like a normal PS/2 keyboard.  This will require a 
> little research to determine what the keyset needs to be prepared to 
> respond to in each mode.
> 
> At 10:04 PM 5/8/2006, you wrote:
>>   * Do you have any details about what the circuit board will do? Is it
>> just handling the USB logic, or would it be able to handle keyboard
>> commands (like a standard keyboard microprocessor would). I was thinking
>> it would be really cool if the circuit board could switch between
>> standard keyset mode (5 bit) and Augment mode (keyset + 3-button mouse =
>> 8 bits) based on data sent through the PC's keyboard controller to the
>> chord keyset.
>>
>> http://www.win.tue.nl/~aeb/linux/kbd/scancodes-12.html
>>
>> Jonathan    (04)


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