Hi Ralf Mardorf!

 On 2014.08.04 at 19:05:37 +0200, Ralf Mardorf wrote next:

> On Mon, 2014-08-04 at 19:53 +0300, Burak METİN wrote:
> > When i use these cards with different usb buses, it is ok but i need
> > to use them in same bus.
> 
> IIRC the plug'n'play audio USB driver is limited to USB1, for USB2
> proprietary drivers are needed. But perhaps I'm confusing something.
> Assumed I shouldn't be mistaken, then perhaps the bandwidth really is to
> small.

Can't be true.. Here is example of USB 2.0 audio device (bcdUSB: 2.00),
completely plug and play:

Bus 002 Device 005: ID 20b1:0002 XMOS Ltd 
Device Descriptor:
  bLength                18
  bDescriptorType         1
  bcdUSB               2.00
  bDeviceClass          239 Miscellaneous Device
  bDeviceSubClass         2 ?
  bDeviceProtocol         1 Interface Association
  bMaxPacketSize0        64
  idVendor           0x20b1 XMOS Ltd
  idProduct          0x0002 
  bcdDevice            3.30
  iManufacturer           1 XMOS 
  iProduct                2 XMOS USB Audio 2.0
  iSerial                 3 0000
  bNumConfigurations      2


-- 

Vladimir

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