[LAU] Roland A500S: snd-usb-audio error -5

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