[alsa-devel] Trouble about Roland UA-11 UA-33 UA-55 and snd-usb-audio module

FirebUntU info at firebuntu.com
Thu Nov 15 23:42:46 CET 2012


UA-11 in *Advanced mode* (EXT switch to **)
DUO-CAPTURE 0582:0137
=========================================

Bus 003 Device 003: ID 0582:0137 Roland Corp.
Device Descriptor:
   bLength                18
   bDescriptorType         1
   bcdUSB               1.10
   bDeviceClass            0 (Defined at Interface level)
   bDeviceSubClass         0
   bDeviceProtocol         0
   bMaxPacketSize0        64
   idVendor           0x0582 Roland Corp.
   idProduct          0x0137
   bcdDevice            0.60
   iManufacturer           1 Roland
   iProduct                2 DUO-CAPTURE
   iSerial                 0
   bNumConfigurations      1
   Configuration Descriptor:
     bLength                 9
     bDescriptorType         2
     wTotalLength          285
     bNumInterfaces          4
     bConfigurationValue     1
     iConfiguration          0
     bmAttributes         0x80
       (Bus Powered)
     MaxPower               96mA
     Interface Descriptor:
       bLength                 9
       bDescriptorType         4
       bInterfaceNumber        0
       bAlternateSetting       0
       bNumEndpoints           0
       bInterfaceClass         1 Audio
       bInterfaceSubClass      1 Control Device
       bInterfaceProtocol      0
       iInterface              0
       AudioControl Interface Descriptor:
         bLength                10
         bDescriptorType        36
         bDescriptorSubtype      1 (HEADER)
         bcdADC               1.00
         wTotalLength           52
         bInCollection           2
         baInterfaceNr( 0)       1
         baInterfaceNr( 1)       2
       AudioControl Interface Descriptor:
         bLength                12
         bDescriptorType        36
         bDescriptorSubtype      2 (INPUT_TERMINAL)
         bTerminalID             1
         wTerminalType      0x0101 USB Streaming
         bAssocTerminal          0
         bNrChannels             2
         wChannelConfig     0x0003
           Left Front (L)
           Right Front (R)
         iChannelNames           0
         iTerminal               0
       AudioControl Interface Descriptor:
         bLength                 9
         bDescriptorType        36
         bDescriptorSubtype      3 (OUTPUT_TERMINAL)
         bTerminalID             3
         wTerminalType      0x0304 Desktop Speaker
         bAssocTerminal          0
         bSourceID               1
         iTerminal               0
       AudioControl Interface Descriptor:
         bLength                12
         bDescriptorType        36
         bDescriptorSubtype      2 (INPUT_TERMINAL)
         bTerminalID             4
         wTerminalType      0x0603 Line Connector
         bAssocTerminal          0
         bNrChannels             2
         wChannelConfig     0x0003
           Left Front (L)
           Right Front (R)
         iChannelNames           0
         iTerminal               0
       AudioControl Interface Descriptor:
         bLength                 9
         bDescriptorType        36
         bDescriptorSubtype      3 (OUTPUT_TERMINAL)
         bTerminalID             7
         wTerminalType      0x0101 USB Streaming
         bAssocTerminal          0
         bSourceID               4
         iTerminal               0
     Interface Descriptor:
       bLength                 9
       bDescriptorType         4
       bInterfaceNumber        1
       bAlternateSetting       0
       bNumEndpoints           0
       bInterfaceClass         1 Audio
       bInterfaceSubClass      2 Streaming
       bInterfaceProtocol      0
       iInterface              0
     Interface Descriptor:
       bLength                 9
       bDescriptorType         4
       bInterfaceNumber        1
       bAlternateSetting       1
       bNumEndpoints           1
       bInterfaceClass         1 Audio
       bInterfaceSubClass      2 Streaming
       bInterfaceProtocol      0
       iInterface              0
       AudioStreaming Interface Descriptor:
         bLength                 7
         bDescriptorType        36
         bDescriptorSubtype      1 (AS_GENERAL)
         bTerminalLink           1
         bDelay                  0 frames
         wFormatTag              1 PCM
       AudioStreaming Interface Descriptor:
         bLength                11
         bDescriptorType        36
         bDescriptorSubtype      2 (FORMAT_TYPE)
         bFormatType             1 (FORMAT_TYPE_I)
         bNrChannels             2
         bSubframeSize           2
         bBitResolution         16
         bSamFreqType            1 Discrete
         tSamFreq[ 0]        44100
       Endpoint Descriptor:
         bLength                 9
         bDescriptorType         5
         bEndpointAddress     0x01  EP 1 OUT
         bmAttributes            9
           Transfer Type            Isochronous
           Synch Type               Adaptive
           Usage Type               Data
         wMaxPacketSize     0x00c8  1x 200 bytes
         bInterval               1
         bRefresh                0
         bSynchAddress           0
         AudioControl Endpoint Descriptor:
           bLength                 7
           bDescriptorType        37
           bDescriptorSubtype      1 (EP_GENERAL)
           bmAttributes         0x00
           bLockDelayUnits         2 Decoded PCM samples
           wLockDelay            512 Decoded PCM samples
     Interface Descriptor:
       bLength                 9
       bDescriptorType         4
       bInterfaceNumber        1
       bAlternateSetting       2
       bNumEndpoints           1
       bInterfaceClass         1 Audio
       bInterfaceSubClass      2 Streaming
       bInterfaceProtocol      0
       iInterface              0
       AudioStreaming Interface Descriptor:
         bLength                 7
         bDescriptorType        36
         bDescriptorSubtype      1 (AS_GENERAL)
         bTerminalLink           1
         bDelay                  0 frames
         wFormatTag              1 PCM
       AudioStreaming Interface Descriptor:
         bLength                11
         bDescriptorType        36
         bDescriptorSubtype      2 (FORMAT_TYPE)
         bFormatType             1 (FORMAT_TYPE_I)
         bNrChannels             2
         bSubframeSize           2
         bBitResolution         16
         bSamFreqType            1 Discrete
         tSamFreq[ 0]        48000
       Endpoint Descriptor:
         bLength                 9
         bDescriptorType         5
         bEndpointAddress     0x01  EP 1 OUT
         bmAttributes            9
           Transfer Type            Isochronous
           Synch Type               Adaptive
           Usage Type               Data
         wMaxPacketSize     0x00c8  1x 200 bytes
         bInterval               1
         bRefresh                0
         bSynchAddress           0
         AudioControl Endpoint Descriptor:
           bLength                 7
           bDescriptorType        37
           bDescriptorSubtype      1 (EP_GENERAL)
           bmAttributes         0x00
           bLockDelayUnits         2 Decoded PCM samples
           wLockDelay            512 Decoded PCM samples
     Interface Descriptor:
       bLength                 9
       bDescriptorType         4
       bInterfaceNumber        2
       bAlternateSetting       0
       bNumEndpoints           0
       bInterfaceClass         1 Audio
       bInterfaceSubClass      2 Streaming
       bInterfaceProtocol      0
       iInterface              0
     Interface Descriptor:
       bLength                 9
       bDescriptorType         4
       bInterfaceNumber        2
       bAlternateSetting       1
       bNumEndpoints           1
       bInterfaceClass         1 Audio
       bInterfaceSubClass      2 Streaming
       bInterfaceProtocol      0
       iInterface              0
       AudioStreaming Interface Descriptor:
         bLength                 7
         bDescriptorType        36
         bDescriptorSubtype      1 (AS_GENERAL)
         bTerminalLink           7
         bDelay                  0 frames
         wFormatTag              1 PCM
       AudioStreaming Interface Descriptor:
         bLength                11
         bDescriptorType        36
         bDescriptorSubtype      2 (FORMAT_TYPE)
         bFormatType             1 (FORMAT_TYPE_I)
         bNrChannels             2
         bSubframeSize           2
         bBitResolution         16
         bSamFreqType            1 Discrete
         tSamFreq[ 0]        44100
       Endpoint Descriptor:
         bLength                 9
         bDescriptorType         5
         bEndpointAddress     0x82  EP 2 IN
         bmAttributes            5
           Transfer Type            Isochronous
           Synch Type               Asynchronous
           Usage Type               Data
         wMaxPacketSize     0x00c8  1x 200 bytes
         bInterval               1
         bRefresh                0
         bSynchAddress           0
         AudioControl Endpoint Descriptor:
           bLength                 7
           bDescriptorType        37
           bDescriptorSubtype      1 (EP_GENERAL)
           bmAttributes         0x00
           bLockDelayUnits         0 Undefined
           wLockDelay              0 Undefined
     Interface Descriptor:
       bLength                 9
       bDescriptorType         4
       bInterfaceNumber        2
       bAlternateSetting       2
       bNumEndpoints           1
       bInterfaceClass         1 Audio
       bInterfaceSubClass      2 Streaming
       bInterfaceProtocol      0
       iInterface              0
       AudioStreaming Interface Descriptor:
         bLength                 7
         bDescriptorType        36
         bDescriptorSubtype      1 (AS_GENERAL)
         bTerminalLink           7
         bDelay                  0 frames
         wFormatTag              1 PCM
       AudioStreaming Interface Descriptor:
         bLength                11
         bDescriptorType        36
         bDescriptorSubtype      2 (FORMAT_TYPE)
         bFormatType             1 (FORMAT_TYPE_I)
         bNrChannels             2
         bSubframeSize           2
         bBitResolution         16
         bSamFreqType            1 Discrete
         tSamFreq[ 0]        48000
       Endpoint Descriptor:
         bLength                 9
         bDescriptorType         5
         bEndpointAddress     0x82  EP 2 IN
         bmAttributes            5
           Transfer Type            Isochronous
           Synch Type               Asynchronous
           Usage Type               Data
         wMaxPacketSize     0x00c8  1x 200 bytes
         bInterval               1
         bRefresh                0
         bSynchAddress           0
         AudioControl Endpoint Descriptor:
           bLength                 7
           bDescriptorType        37
           bDescriptorSubtype      1 (EP_GENERAL)
           bmAttributes         0x00
           bLockDelayUnits         0 Undefined
           wLockDelay              0 Undefined
     Interface Descriptor:
       bLength                 9
       bDescriptorType         4
       bInterfaceNumber        3
       bAlternateSetting       0
       bNumEndpoints           1
       bInterfaceClass         3 Human Interface Device
       bInterfaceSubClass      0 No Subclass
       bInterfaceProtocol      0 None
       iInterface              0
         HID Device Descriptor:
           bLength                 9
           bDescriptorType        33
           bcdHID               1.00
           bCountryCode            0 Not supported
           bNumDescriptors         1
           bDescriptorType        34 Report
           wDescriptorLength      61
          Report Descriptors:
            ** UNAVAILABLE **
       Endpoint Descriptor:
         bLength                 7
         bDescriptorType         5
         bEndpointAddress     0x8f  EP 15 IN
         bmAttributes            3
           Transfer Type            Interrupt
           Synch Type               None
           Usage Type               Data
         wMaxPacketSize     0x0010  1x 16 bytes
         bInterval              16
Device Status:     0x0002
   (Bus Powered)
   Remote Wakeup Enabled

---

You must consider the EXT switch isn't documented in the manual.


Thanks,

Leonardo




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