DOUT Shifting (I`m stuck category)

[Kaspars]

Hello!

I`m currently working on DIY copy of Pioneer DDJ-T1;

As base for my app i use ain64_din128_dout128_v2c which is

very straightforward and easy to understand by newbie like me

with little or nonexistent programming skills.

Everything is working fine - buttons, pots, encs and leds.

Shift button functionality taken from:

works too for AIN`s and DIN`s, but problem arises with DOUT so called "shifting" i will try to explain.

Original DDJ-T1 (and many other controllers) is 4 deck controllers

with 2 control sets used for all 4 deck control.

Switching of controller focus is done by means of "DECK" buttons.

So when i press DECK button controller shifts all inputs to different MIDI values/channels whatever and allso

it switches all leds to display status af that other deck.

And whats interesting that that`s done without Traktor sending any MIDI out to update DOUT`s to reflect other deck LED`s.

For example if deck A has LED1 active and deck B has LED2 active then switching between deck`s would cause LED1 go off and

LED2 go on and vice versa.

Is there any directions or code example that will provide this functionality?

I hope someone will understand my taught and came up with ideas.

[Kaspars]

FYI it can be done by using modifiers in Traktor software. I discovered that when modifier changes state Traktor sends out midi update of all changend LED`s. And i suspect that Pioneer`s controller update it`s LED`s same way.