Hello, I've been hacking to get Rane SL-4 USB audio (http://dj.rane.com/products/sl4-for-serato-scratch-live) which have 4 Input and 4 output channel to work with ALSA. After digging the lsusb and snoops I have separated endpoints for input (0x82) and output (0x06). They are just USB Isochronous I/O. I have compiled kernel and tried to get USB-quirks to work with this but then I have to admit that even Reloop Play seems be very similar it doesn't do the trick (No error but card doesn't come up eather) nor using Ranel SL-1 approach which just shoots the error
[ 3555.009349] usb 1-5: Audio class v2 interfaces need an interface association [ 3555.009373] snd-usb-audio: probe of 1-5:1.0 failed with error -5 [ 3555.009394] usb 1-5: cannot find UAC_HEADER [ 3555.009401] snd-usb-audio: probe of 1-5:1.1 failed with error -5 [ 3555.009421] usb 1-5: cannot find UAC_HEADER [ 3555.009427] snd-usb-audio: probe of 1-5:1.2 failed with error -5
If I need interface association how to do that? Trying to adjust mixer values in mixer_maps.c.
If someone have a time to give some guidance if this doable with Quirks or do I have to write some more specific driver? I attach lsusb below here. HID device seems to be adjusting buffer size and 48 Khz and 96 Khz output.
Bus 001 Device 003: ID 1cc5:000f Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 2.00 bDeviceClass 0 (Defined at Interface level) bDeviceSubClass 255 bDeviceProtocol 255 bMaxPacketSize0 64 idVendor 0x1cc5 idProduct 0x000f bcdDevice 1.00 iManufacturer 1 Rane Corporation iProduct 2 Rane SL 4 iSerial 3 RH.01.00 bNumConfigurations 1 Configuration Descriptor: bLength 9 bDescriptorType 2 wTotalLength 235 bNumInterfaces 4 bConfigurationValue 1 iConfiguration 0 bmAttributes 0x80 (Bus Powered) MaxPower 500mA Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 0 bAlternateSetting 0 bNumEndpoints 0 bInterfaceClass 255 Vendor Specific Class bInterfaceSubClass 1 bInterfaceProtocol 32 iInterface 4 SL 4 Audio ** UNRECOGNIZED: 09 24 01 00 02 0a 4b 00 00 ** UNRECOGNIZED: 08 24 0a 05 01 01 00 00 ** UNRECOGNIZED: 11 24 02 01 01 01 00 05 0a 00 00 00 00 05 00 00 00 ** UNRECOGNIZED: 0c 24 03 02 02 06 00 01 05 00 00 00 ** UNRECOGNIZED: 11 24 02 03 02 06 00 05 0a 00 00 00 00 0f 00 00 00 ** UNRECOGNIZED: 0c 24 03 04 01 01 00 03 05 00 00 00 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 1 bAlternateSetting 0 bNumEndpoints 0 bInterfaceClass 255 Vendor Specific Class bInterfaceSubClass 2 bInterfaceProtocol 32 iInterface 0 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 1 bAlternateSetting 1 bNumEndpoints 1 bInterfaceClass 255 Vendor Specific Class bInterfaceSubClass 2 bInterfaceProtocol 32 iInterface 0 ** UNRECOGNIZED: 10 24 01 01 00 01 01 00 00 00 0a 00 00 00 00 05 ** UNRECOGNIZED: 06 24 02 01 04 18 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x06 EP 6 OUT bmAttributes 5 Transfer Type Isochronous Synch Type Asynchronous Usage Type Data wMaxPacketSize 0x0208 1x 520 bytes bInterval 1 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 2 bAlternateSetting 0 bNumEndpoints 0 bInterfaceClass 255 Vendor Specific Class bInterfaceSubClass 2 bInterfaceProtocol 32 iInterface 0 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 2 bAlternateSetting 1 bNumEndpoints 1 bInterfaceClass 255 Vendor Specific Class bInterfaceSubClass 2 bInterfaceProtocol 32 iInterface 0 ** UNRECOGNIZED: 10 24 01 03 00 01 01 00 00 00 0a 00 00 00 00 0f ** UNRECOGNIZED: 06 24 02 01 04 18 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x82 EP 2 IN bmAttributes 37 Transfer Type Isochronous Synch Type Asynchronous Usage Type Implicit feedback Data wMaxPacketSize 0x0208 1x 520 bytes bInterval 1 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 3 bAlternateSetting 0 bNumEndpoints 2 bInterfaceClass 3 Human Interface Device bInterfaceSubClass 0 No Subclass bInterfaceProtocol 0 None iInterface 0 HID Device Descriptor: bLength 9 bDescriptorType 33 bcdHID 1.10 bCountryCode 0 Not supported bNumDescriptors 1 bDescriptorType 34 Report wDescriptorLength 28 Report Descriptors: ** UNAVAILABLE ** Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x81 EP 1 IN bmAttributes 3 Transfer Type Interrupt Synch Type None Usage Type Data wMaxPacketSize 0x0040 1x 64 bytes bInterval 1 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x01 EP 1 OUT bmAttributes 3 Transfer Type Interrupt Synch Type None Usage Type Data wMaxPacketSize 0x0040 1x 64 bytes bInterval 1 Device Qualifier (for other device speed): bLength 10 bDescriptorType 6 bcdUSB 2.00 bDeviceClass 0 (Defined at Interface level) bDeviceSubClass 255 bDeviceProtocol 255 bMaxPacketSize0 64 bNumConfigurations 1 Device Status: 0x0000 (Bus Powered)
Thanks you for your time and any tips would be nice.
Sincerely, Tuukka