• Open Menu Close Menu
  • Apple
  • Shopping Bag
  • Apple
  • Mac
  • iPad
  • iPhone
  • Watch
  • TV
  • Music
  • Support
  • Search apple.com
  • Shopping Bag

Lists

Open Menu Close Menu
  • Terms and Conditions
  • Lists hosted on this site
  • Email the Postmaster
  • Tips for posting to public mailing lists
Re: 1 in 2 out MIDI ports
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: 1 in 2 out MIDI ports


  • Subject: Re: 1 in 2 out MIDI ports
  • From: Jaeho Chang <email@hidden>
  • Date: Tue, 18 Feb 2003 09:22:31 +0900

Is this bug a known issue?

(And... yeah, I use more input devices than output ones, too. But most of my colleagues use more output devices... But anyway I don't actually understand why the developer made this interface to have 1 input and 2 outputs instead of 2 in 2 out.)

Thanks,
Jaeho


On Tuesday, February 18, 2003, at 03:13 AM, Herbie Robinson wrote:

We're developing a small MIDI interface with 1 input and 2 output ports. This interface is working very well with Win XP, but one of 2 output ports is not recognized on Mac OS X. We already made 4 in 4 out, and 8 in 8 out interfaces and they are working very well. So I'm wondering if inputs and outputs should be always in pairs.

Any idea?

Sounds like a bug in the USB class driver.

Is there a special thing we have to consider when making a MIDI interface for Mac OS X?

Apple will probably fix the bug (it's in the sample driver they put out, too), but a lot of MIDI applications and devices require pairs of ports for two way communication with the host. A MIDI interface with more output puts than input ports strikes me as a rather strange beast -- One usually runs out of inputs before outputs...
_______________________________________________
coreaudio-api mailing list | email@hidden
Help/Unsubscribe/Archives: http://www.lists.apple.com/mailman/listinfo/coreaudio-api
Do not post admin requests to the list. They will be ignored.

  • Follow-Ups:
    • Re: 1 in 2 out MIDI ports
      • From: Cesare Ferrari <email@hidden>
  • Prev by Date: Re: 1 in 2 out MIDI ports
  • Next by Date: Edirol UA-1D and MTCoreAudio?
  • Previous by thread: Re: Start of Distributed MIDI Standard [...]
  • Next by thread: Re: 1 in 2 out MIDI ports
  • Index(es):
    • Date
    • Thread