Pioneer DDJ-200 USB midi controller appears as HID

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Pioneer DDJ-200 USB midi controller appears as HID #10144

Open mixxxbot opened 2 years ago

mixxxbot commented 2 years ago

Reported by: fkbreitl Date: 2020-10-04T10:31:22Z Status: New Importance: Undecided Launchpad Issue: lp1898433

In Mixxx 2.2.4 on Windows 10 v1909 a Pioneer DDJ-200 USB controller appears as DDJ-200 MIDI Controller and as DDJ-200 0001_2 HID Interface Number 0x2.

Is it correct to appear twice as a HID? What use would this have?

mixxxbot commented 2 years ago

Commented by: JoergAtGithub Date: 2022-01-08T20:43:36Z

This is not unusal. Many devices have multiple interfaces. Often HID has more functionality than MIDI, but this depends on the device. PioneerDJ often uses MIDI to enable the external control to the device, by sending a keep-alive keyword in short intervals, while the communication itself happens via HID.