1This directory contains the USB Tranzport and Alphatrack Kernel drivers for Linux. 2 3At present the tranzport does reads/writes of 8 byte cmds to /dev/tranzport0 to control 4the lights and screen and wheel 5 6At present the alphatrack accepts reads/writes of 12 byte cmds to /dev/tranzport0 to control 7the lights and screen and fader. 8 9Both drivers also have some sysfs hooks that are non-functional at the moment. 10 11The API is currently closely tied to the ardour revision and WILL change. 12 13A sysfs interface is PERFECT for simple userspace apps to do fun things with the 14lights and screen. It's fairly lousy for handling input events and very lousy 15for watching the state of the shuttle wheel. 16 17A linux input events interface is great for the input events and shuttle wheel. It's 18theoretically OK on LEDs. A Fader can be mapped to an absolute mouse device. 19But there is no LCD support at all. 20 21In the end this is going to be driven by a midi layer, which handles all those 22cases via a defined API, but - among other things - is slow, doesn't do 23flow control, and is a LOT of extra work. Frankly, I'd like to keep the 24core driver simple because the only realtime work really required is 25the bottom half interrupt handler and the output overlapping. 26 27Exposing some sort of clean aio api to userspace would be perfect. What that 28API looks like? Gah. beats me. 29