Re: [LAU] strange behaviour with novation launchpad

Previous message: [thread] [date] [author]
Next message: [thread] [date] [author]
To: <linux-audio-user@...>
Date: Thursday, July 12, 2012 - 9:02 pm

On Thu, Jul 12, 2012 at 09:24:34PM +0200, Atte André Jensen wrote:

> I'm trying to use my novation launchpad with chuck. It seems to be

That is because the LP sends MIDI using running status, and there
is no way to reset it (i.e. force a status byte on the next message),
except a power cycle. The top row uses controller events while the
rest uses key up/down. After re-opening the device the driver code
needs a status byte, and usually using the top row will provide one
(assuming the last event in the previous session was a key one).

Actually *most* events are unambiguous even without a status byte,
but you'd need some ad-hoc code in the driver to exploit that.

Ciao,

--
FA

A world of exhaustive, reliable metadata would be an utopia.
It's also a pipe-dream, founded on self-delusion, nerd hubris
and hysterically inflated market opportunities. (Cory Doctorow)

_______________________________________________
Linux-audio-user mailing list
Linux-audio-user@lists.linuxaudio.org
http://lists.linuxaudio.org/listinfo/linux-audio-user

Previous message: [thread] [date] [author]
Next message: [thread] [date] [author]

Messages in current thread:
[LAU] strange behaviour with novation launchpad, Atte André Jensen, (Thu Jul 12, 7:28 pm)
Re: [LAU] strange behaviour with novation launchpad, Fons Adriaensen, (Thu Jul 12, 9:02 pm)
Re: [LAU] strange behaviour with novation launchpad, Atte André Jensen, (Fri Jul 13, 6:55 am)
Re: [LAU] strange behaviour with novation launchpad, Fons Adriaensen, (Fri Jul 13, 8:59 am)
Re: [LAU] strange behaviour with novation launchpad, Kaspar Bumke, (Fri Jul 13, 3:56 pm)
Re: [LAU] strange behaviour with novation launchpad, Fons Adriaensen, (Fri Jul 13, 8:40 pm)
Re: [LAU] strange behaviour with novation launchpad, Atte André Jensen, (Fri Jul 13, 4:23 pm)
Re: [LAU] strange behaviour with novation launchpad, Kaspar Bumke, (Fri Jul 13, 4:41 pm)
Re: [LAU] strange behaviour with novation launchpad, Fons Adriaensen, (Fri Jul 13, 8:46 pm)
Re: [LAU] strange behaviour with novation launchpad, Robin Gareus, (Fri Jul 13, 6:59 pm)
Re: [LAU] strange behaviour with novation launchpad, Kaspar Bumke, (Fri Jul 13, 7:12 pm)
Re: [LAU] strange behaviour with novation launchpad, Fons Adriaensen, (Fri Jul 13, 8:32 pm)
Re: [LAU] strange behaviour with novation launchpad, Kaspar Bumke, (Fri Jul 13, 6:59 pm)
Re: [LAU] strange behaviour with novation launchpad, Fons Adriaensen, (Fri Jul 13, 8:34 pm)
Re: [LAU] strange behaviour with novation launchpad, Kaspar Bumke, (Fri Jul 13, 4:08 pm)