[haiku-development] Re: (USB MIDI) Device hierarchy

  • From: "Sean Collins" <smc.collins@xxxxxxxxxxx>
  • To: haiku-development@xxxxxxxxxxxxx
  • Date: Fri, 11 Feb 2011 21:37:44 +0000

> 
> This issue has been a common one for other devices as well, e.g. 
> webcams
> with a microphone, having both usb_audio and usb_video use it. The 
> best
> solution for this I have been able to come up with is using the new
> driver model, where drivers register against usb interfaces instead 
> of
> the whole device.
> 
> It is possible to get it to work with the current usb
> stack/architecture, but it is fairly tricky to get right IIRC...
> 
> Ithamar.
> 
> 
> 
    Actually I found some new and interesting information today about 
this USB midi device. Looking into it with usblyzer it shows that the 
keyboard also has a usb midi and a USB Keyboard " qwerty" 
implementation on the same bus. the suspcions about the second protocal 
were in fact true. 

   I am attaching a download link to the file xml files with the data. 
It didn't format well buts its fialr self explanatory. 

   remove the .zip exstension from the end of the file. 

   Sean 

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