Re: Re: Linux USB

From: Jon Elson <elson@...>
Subject: Re: Linux USB

>William Scalione wrote:

>> Jon,
>>
>> I was talking about a joystick with switches as opposed to pots.
>> Simply connected to the keyboard circuit board matrix. Move
>> right and it will emulate the right arrow key.

>As long as the window focus stays on the right window, this is really
>simple, and should work fine.

If you have separate I/O paths, not two keyboard signals in the same
path, we can write a simple process to run in the background that will
watch inputs and communicate with the running EMC. There are examples of
processes somewhat like this under the scripts menu in tkemc. IO_Show.tcl
starts a separate instance of a program that connects the EMC's internal
communication system (NML) to most any I/O port. Software processes like
these do not connect to a hardware counter, unless the device you are using
has one, so you can't simply watch how many times a switch has closed. They
are loops that are executed every so often and look to see what state the
pin is in.

HTH

Ray