[Ardour-Users] Tranzport control surface under Ubuntu Studio 10.04

[Giso Grimm]

On 01/14/2011 05:03 AM, Brett McCoy wrote:
> Has anyone gotten the Tranzport to work under Ubuntu Studio 10.04
> (kernel 2.6.32-25-generic)? I have tried every method listed on the
> Ardour site but every time I try to enable in Ardour, I get the
> message
> 
>        [ERROR]: control protocol name "Tranzport" could not be initialized
> 
> and a message to the console
> 
>        Tranzport: cannot claim USB interface
> 
> The device shows up under lsusb and the message
> 
>       ardour: [INFO]: Control surface protocol discovered: "Tranzport"
> 
> The device is created under /dev/bus/usb/<bus>/<dev>, like this:
> 
> crw-rw-r-- 1 root root 189, 386 2011-01-13 22:57 /dev/bus/usb/004/003
> 
> It always shows root:root permissions, even after setting up rules for
> udev. But even running ardour as root I can't get Tranzport to work.
> It worked fine when I'd previously had Fedora or Gentoo installed on
> this very same machine a couple years back. but not under this distro.
> 

I am using the kernel space driver, see

http://tracker.ardour.org/view.php?id=2521

for installation instructions. In recent kernels the tranzport device is
created as /dev/tranzport0, maybe the raw usb device is not usable if
the kernel driver is loaded (ardour 2.x uses the userspace driver by
default).

Giso