Berkeley Alpha USB Digital Output Hardware Report

Return to Berkeley Alpha USB Digital Output.

 Bus 001 Device 002: ID 21b4:0260 Device Descriptor: bLength               18 bDescriptorType        1 bcdUSB              2.00 bDeviceClass         239 bDeviceSubClass        2 bDeviceProtocol        1 bMaxPacketSize0       64 idVendor          0x21b4 idProduct         0x0260 bcdDevice           1.72 iManufacturer          1 Berkeley Audio Design iProduct               2 Alpha USB Digital Output iSerial                3 Streamlength(tm) bNumConfigurations     2 Configuration Descriptor: bLength                9 bDescriptorType        2 wTotalLength         168 bNumInterfaces         3 bConfigurationValue    1 iConfiguration         0 bmAttributes        0x80 (Bus Powered) MaxPower             500mA Interface Association: bLength                8 bDescriptorType       11 bFirstInterface        0 bInterfaceCount        2 bFunctionClass         1 bFunctionSubClass      0 bFunctionProtocol     32 iFunction              0 Interface Descriptor: bLength                9 bDescriptorType        4 bInterfaceNumber       0 bAlternateSetting      0 bNumEndpoints          0 bInterfaceClass        1 bInterfaceSubClass     1 bInterfaceProtocol    32 iInterface             7 Alpha USB Digital Output AudioControl Interface Descriptor: bLength                9 bDescriptorType       36 bDescriptorSubtype     1 (HEADER) bcdADC              2.00 bCategory              8 wTotalLength         123 bmControl           0x00 AudioControl Interface Descriptor: bLength                8 bDescriptorType       36 bDescriptorSubtype    10 (CLOCK_SOURCE) bClockID              40 bmAttributes        0x01 Internal fixed Clock bmControls          0x07 Clock Frequency Control (read/write) Clock Validity Control (read-only) bAssocTerminal         0 iClockSource           1 Berkeley Audio Design AudioControl Interface Descriptor: bLength               17 bDescriptorType       36 bDescriptorSubtype     2 (INPUT_TERMINAL) bTerminalID            2 wTerminalType     0x0101 bAssocTerminal         0 bCSourceID            40 bNrChannels            2 bmChannelConfig  0x00000003 Front Left (FL) Front Right (FR) bmControls   0x0000 iChannelNames          0 iTerminal              2 Alpha USB Digital Output AudioControl Interface Descriptor: bLength               18 bDescriptorType       36 bDescriptorSubtype     6 (FEATURE_UNIT) bUnitID               10 bSourceID              2 bmaControls( 0)     0x00000000 bmaControls( 1)     0x00000000 bmaControls( 2)     0x00000000 iFeature              15 Output Volume Control AudioControl Interface Descriptor: bLength               12 bDescriptorType       36 bDescriptorSubtype     3 (OUTPUT_TERMINAL) bTerminalID           20 wTerminalType     0x0301 bAssocTerminal         0 bSourceID             10 bCSourceID            40 bmControls        0x0000 iTerminal              5 Alpha USB Digital Output Interface Descriptor: bLength                9 bDescriptorType        4 bInterfaceNumber       1 bAlternateSetting      0 bNumEndpoints          0 bInterfaceClass        1 bInterfaceSubClass     2 bInterfaceProtocol    32 iInterface             8 Alpha USB Digital Output Interface Descriptor: bLength                9 bDescriptorType        4 bInterfaceNumber       1 bAlternateSetting      1 bNumEndpoints          2 bInterfaceClass        1 bInterfaceSubClass     2 bInterfaceProtocol    32 iInterface             9 Alpha USB Digital Output AudioStreaming Interface Descriptor: bLength               16 bDescriptorType       36 bDescriptorSubtype     1 (AS_GENERAL) bTerminalLink          2 bmControls          0x00 bFormatType            1 bmFormats              1 PCM bNrChannels            2 bmChannelConfig  0x00000003 Front Left (FL) Front Right (FR) iChannelNames          0 AudioStreaming Interface Descriptor: bLength                6 bDescriptorType       36 bDescriptorSubtype     2 (FORMAT_TYPE) bFormatType            1 (FORMAT_TYPE_I) bSubslotSize           4 bBitResolution        24 Endpoint Descriptor: bLength                7 bDescriptorType        5 bEndpointAddress    0x01  EP 1 OUT bmAttributes           5 Transfer Type           Isochronous Synch Type              Asynchronous Usage Type              Data wMaxPacketSize    0x0400  1x 1024 bytes bInterval              1 AudioControl Endpoint Descriptor: bLength                8 bDescriptorType       37 bDescriptorSubtype     1 (EP_GENERAL) bmAttributes        0x00 bmControls          0x00 bLockDelayUnits        2 Decoded PCM samples wLockDelay             8 Endpoint Descriptor: bLength                7 bDescriptorType        5 bEndpointAddress    0x81  EP 1 IN        bmAttributes           17 Transfer Type           Isochronous Synch Type              None Usage Type              Feedback wMaxPacketSize    0x0004  1x 4 bytes bInterval              8 Interface Descriptor: bLength                9 bDescriptorType        4 bInterfaceNumber       2 bAlternateSetting      0 bNumEndpoints          0 bInterfaceClass      254 bInterfaceSubClass     1 bInterfaceProtocol     0 iInterface            16 Berkeley Audio DesignDFU Device Firmware Upgrade Interface Descriptor: bLength                            7 bDescriptorType                   33 bmAttributes                       7 Will Not Detach Manifestation Tolerant Upload Supported Download Supported wDetachTimeout                   250 milliseconds wTransferSize                     64 bytes Configuration Descriptor: bLength                9 bDescriptorType        2 wTotalLength         168 bNumInterfaces         3 bConfigurationValue    1 iConfiguration         0 bmAttributes        0x80 (Bus Powered) MaxPower             500mA Interface Association: bLength                8 bDescriptorType       11 bFirstInterface        0 bInterfaceCount        2 bFunctionClass         1 bFunctionSubClass      0 bFunctionProtocol     32 iFunction              0 Interface Descriptor: bLength                9 bDescriptorType        4 bInterfaceNumber       0 bAlternateSetting      0 bNumEndpoints          0 bInterfaceClass        1 bInterfaceSubClass     1 bInterfaceProtocol    32 iInterface             7 Alpha USB Digital Output AudioControl Interface Descriptor: bLength                9 bDescriptorType       36 bDescriptorSubtype     1 (HEADER) bcdADC              2.00 bCategory              8 wTotalLength         123 bmControl           0x00 AudioControl Interface Descriptor: bLength                8 bDescriptorType       36 bDescriptorSubtype    10 (CLOCK_SOURCE) bClockID              40 bmAttributes        0x01 Internal fixed Clock bmControls          0x07 Clock Frequency Control (read/write) Clock Validity Control (read-only) bAssocTerminal         0 iClockSource           1 Berkeley Audio Design AudioControl Interface Descriptor: bLength               17 bDescriptorType       36 bDescriptorSubtype     2 (INPUT_TERMINAL) bTerminalID            2 wTerminalType     0x0101 bAssocTerminal         0 bCSourceID            40 bNrChannels            2 bmChannelConfig  0x00000003 Front Left (FL) Front Right (FR) bmControls   0x0000 iChannelNames          0 iTerminal              2 Alpha USB Digital Output AudioControl Interface Descriptor: bLength               18 bDescriptorType       36 bDescriptorSubtype     6 (FEATURE_UNIT) bUnitID               10 bSourceID              2 bmaControls( 0)     0x00000000 bmaControls( 1)     0x00000000 bmaControls( 2)     0x00000000 iFeature              15 Output Volume Control AudioControl Interface Descriptor: bLength               12 bDescriptorType       36 bDescriptorSubtype     3 (OUTPUT_TERMINAL) bTerminalID           20 wTerminalType     0x0301 bAssocTerminal         0 bSourceID             10 bCSourceID            40 bmControls        0x0000 iTerminal              5 Alpha USB Digital Output Interface Descriptor: bLength                9 bDescriptorType        4 bInterfaceNumber       1 bAlternateSetting      0 bNumEndpoints          0 bInterfaceClass        1 bInterfaceSubClass     2 bInterfaceProtocol    32 iInterface             8 Alpha USB Digital Output Interface Descriptor: bLength                9 bDescriptorType        4 bInterfaceNumber       1 bAlternateSetting      1 bNumEndpoints          2 bInterfaceClass        1 bInterfaceSubClass     2 bInterfaceProtocol    32 iInterface             9 Alpha USB Digital Output AudioStreaming Interface Descriptor: bLength               16 bDescriptorType       36 bDescriptorSubtype     1 (AS_GENERAL) bTerminalLink          2 bmControls          0x00 bFormatType            1 bmFormats              1 PCM bNrChannels            2 bmChannelConfig  0x00000003 Front Left (FL) Front Right (FR) iChannelNames          0 AudioStreaming Interface Descriptor: bLength                6 bDescriptorType       36 bDescriptorSubtype     2 (FORMAT_TYPE) bFormatType            1 (FORMAT_TYPE_I) bSubslotSize           4 bBitResolution        24 Endpoint Descriptor: bLength                7 bDescriptorType        5 bEndpointAddress    0x01  EP 1 OUT bmAttributes           5 Transfer Type           Isochronous Synch Type              Asynchronous Usage Type              Data wMaxPacketSize    0x0400  1x 1024 bytes bInterval              1 AudioControl Endpoint Descriptor: bLength                8 bDescriptorType       37 bDescriptorSubtype     1 (EP_GENERAL) bmAttributes        0x00 bmControls          0x00 bLockDelayUnits        2 Decoded PCM samples wLockDelay             8 Endpoint Descriptor: bLength                7 bDescriptorType        5 bEndpointAddress    0x81  EP 1 IN        bmAttributes           17 Transfer Type           Isochronous Synch Type              None Usage Type              Feedback wMaxPacketSize    0x0004  1x 4 bytes bInterval              8 Interface Descriptor: bLength                9 bDescriptorType        4 bInterfaceNumber       2 bAlternateSetting      0 bNumEndpoints          0 bInterfaceClass      254 bInterfaceSubClass     1 bInterfaceProtocol     0 iInterface            16 Berkeley Audio DesignDFU Device Firmware Upgrade Interface Descriptor: bLength                            7 bDescriptorType                   33 bmAttributes                       7 Will Not Detach Manifestation Tolerant Upload Supported Download Supported wDetachTimeout                   250 milliseconds wTransferSize                     64 bytes Device Qualifier (for other device speed): bLength               10 bDescriptorType        6 bcdUSB              2.00 bDeviceClass           0 bDeviceSubClass        0 bDeviceProtocol        0 bMaxPacketSize0       64 bNumConfigurations     1 Device Status:    0xfd94 (Bus Powered) Test Mode

