Roland A500S: snd-usb-audio error -5

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Hello linux-audio users,

    I recently acquired a roland a-500s midi keyboard and I have problems
using it under linux. When I connect the device via usb, dmesg tells me
this:

[   68.100184] usb 3-1: USB disconnect, device number 2
[   73.700119] usb 3-1: new full-speed USB device number 3 using uhci_hcd
[   73.860157] usb 3-1: New USB device found, idVendor=0582, idProduct=010d
[   73.860162] usb 3-1: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[   73.860165] usb 3-1: Product: A-500S
[   73.860169] usb 3-1: Manufacturer: ROLAND
[   73.867172] snd-usb-audio: probe of 3-1:1.0 failed with error -5

And this is the relevant portion of lsusb -v:

Bus 003 Device 003: ID 0582:010d Roland Corp. A-500S
Device Descriptor:
  bLength                18
  bDescriptorType         1
  bcdUSB               1.10
  bDeviceClass          255 Vendor Specific Class
  bDeviceSubClass         0
  bDeviceProtocol       255
  bMaxPacketSize0        64
  idVendor           0x0582 Roland Corp.
  idProduct          0x010d A-500S
  bcdDevice            1.00
  iManufacturer           1
  iProduct                2
  iSerial                 0
  bNumConfigurations      1
  Configuration Descriptor:
    bLength                 9
    bDescriptorType         2
    wTotalLength           32
    bNumInterfaces          1
    bConfigurationValue     1
    iConfiguration          0
    bmAttributes         0x80
      (Bus Powered)
    MaxPower              150mA
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        0
      bAlternateSetting       0
      bNumEndpoints           2
      bInterfaceClass       255 Vendor Specific Class
      bInterfaceSubClass      3
      bInterfaceProtocol      0
      iInterface              0
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x02  EP 2 OUT
        bmAttributes            2
          Transfer Type            Bulk
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0040  1x 64 bytes
        bInterval               0
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x81  EP 1 IN
        bmAttributes            2
          Transfer Type            Bulk
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0040  1x 64 bytes
        bInterval               0

I am running debian stable (8) and my machine is a lenovo thinkpad
x60s, any help appreciated!
-F
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