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Old 11-21-2018, 03:43 PM   #1
Danny Medina
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Exclamation Frontier Design Group's AlphaTrack

It would be nice if i can make this work.. I have one of these things laying around & i don't know how to make this work with the Linux native version of Linux... Anyone has any ideas?
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Old 11-22-2018, 07:53 AM   #2
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I havenít been able to get it to work either, unfortunately itís not class compliant. I did find a linux driver for it when googling, but it didnít provide any sort of standard interface, it was a much lower level driver...

It might be possible to use a Windows driver wrapped, but no idea what that looks like these days...
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Old 11-22-2018, 11:28 AM   #3
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It would be great, maybe even wishful thinking, if the folks at Cockos would find some sort of way towards making this & perhaps more controllers work under Linux. Just thought i post this here since i happen to find one of these devices around though.
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Old 11-22-2018, 03:06 PM   #4
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Quote:
Originally Posted by Danny Medina View Post
It would be great, maybe even wishful thinking, if the folks at Cockos would find some sort of way towards making this & perhaps more controllers work under Linux. Just thought i post this here since i happen to find one of these devices around though.
I'm quite certain the folks at cockos have read your message 😆
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Old 11-22-2018, 03:20 PM   #5
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These things can seem unresponsive / dead until you recalibrate them.
Try Shift+Stop+F4 with the driver loaded just to be sure.
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Old 11-22-2018, 05:44 PM   #6
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These things can seem unresponsive / dead until you recalibrate them.
Try Shift+Stop+F4 with the driver loaded just to be sure.
for a split second i got exited
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Old 11-22-2018, 05:45 PM   #7
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Quote:
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I'm quite certain the folks at cockos have read your message 😆
yay
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Old 11-23-2018, 03:34 AM   #8
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I believe that the problem in this case is that there is no driver in the kernel for this device. There used to be one many years ago, but AFAIK it was removed and has never been added back, the kernel config option used to be: CONFIG_TRANZPORT. No idea why this happened as the kernel tends to support a massive amount of different devices, I suppose the problem is that no one that is capable of maintaining it has had any interest in doing so.

IIRC I tried to get one working a while ago, but gave up on it.. Since the code isn't in the kernel you'd have to dig up the old code and try to patch it into your kernel source, or possibly build a kernel modules out of tree. Though I'm not afraid to dig into the kernel it just seemed like too much trouble to maintain this for my system, so I took the easy way out
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Old 11-23-2018, 10:16 AM   #9
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Originally Posted by Jack Winter View Post
I believe that the problem in this case is that there is no driver in the kernel for this device. There used to be one many years ago, but AFAIK it was removed and has never been added back, the kernel config option used to be: CONFIG_TRANZPORT. No idea why this happened as the kernel tends to support a massive amount of different devices, I suppose the problem is that no one that is capable of maintaining it has had any interest in doing so.

IIRC I tried to get one working a while ago, but gave up on it.. Since the code isn't in the kernel you'd have to dig up the old code and try to patch it into your kernel source, or possibly build a kernel modules out of tree. Though I'm not afraid to dig into the kernel it just seemed like too much trouble to maintain this for my system, so I took the easy way out
Ah I see, I did come across several things in Github having to do with kernel modules and whatnot, I'm not that advanced using Linux yet & I also foresaw it being more trouble than what its worth.. though it did bugged me a little that when you do things like 'lsusb' while the device is connected, you see it correctly among all the other devices :/ I even tried doing some guess work in reaper's devices settings and see which MIDI ID would be of the device, hoping it'll work lol.
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Old 11-24-2018, 09:55 AM   #10
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The driver that was available wasn't a full driver, just a very low level one that allowed you to write special commands to change lights and stuff -- a full driver would have to virtualize the hardware into a MIDI device, which would be a lot of work.
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Old 11-25-2018, 08:31 AM   #11
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There are 3 alphatrack drivers on linux.

1. the one that was in the kernels staging for some time
2. my own driver
3. the one of Harry van Haaren

All come with a user space application that creates an alsa sequencer port and converts the events comming from the driver into the related midi messages and vice versa.

At least for mine i can say it works with reaper linux.
But support in reaper is very limited.
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Old 11-25-2018, 09:53 AM   #12
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Wow, interesting. Do you have links to the drivers?

If it's an out of tree module it's probably too much of a hassle, but I might make an effort and create some dkms buildscripts for archlinux.

My friend has an old one fader unit that I could borrow to test with.

How well does it work with reaper's sequencer port?
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Old 11-25-2018, 12:55 PM   #13
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You can download the tgzed source here:

https://ufile.io/dfw0r
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Old 11-25-2018, 01:11 PM   #14
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Thanks, I'll have a looksie, and maybe ask my friend to lend me the device again.
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