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USB Superspeed Peripherals

New Contributor II

Hi.cypress

使用CyUSB3014+WM8960(音频Codec),来实现USB声卡的功能,通过修改的USB设备描述符, 变成两路音频,发现windows不识别。之前的1路是没问题。(见附件one channel and two channels)

thanks

flance fang

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1 Solution
Moderator
Moderator

Hi Flance,

把第二路的这一项改一下就可以了

0x03,                           /* Audio Streaming interface 1 belongs to this AudioControl Interface */


Regards,
Eddie

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5 Replies
Moderator
Moderator

Hi Flance,

请问CY_FX_UAC_STREAM_INTERFACE CY_FX_UAC_2_STREAM_INTERFACE这里客户是如何定义的?

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New Contributor II

#ifdef UAC_INTERFACE

#if defined(USB_HID_INTERFACE)

#define CY_FX_UAC_CTRL_INTERFACE      (uint8_t)(3)      /* UAC Control Interface */

#define CY_FX_UAC_STREAM_INTERFACE      (uint8_t)(4)      /* UAC Streaming Interface : Alternate setting 1 */

#else // !USB_HID_INTERFACE

#define CY_FX_UAC_CTRL_INTERFACE      (uint8_t)(2)      /* UAC Control Interface */

#define CY_FX_UAC_STREAM_INTERFACE      (uint8_t)(3)      /* UAC Streaming Interface : Alternate setting 1 */

#endif // !USB_HID_INTERFACE

#endif

#ifdef UAC_2_INTERFACE

#if defined(USB_HID_INTERFACE)

#define CY_FX_UAC_2_CTRL_INTERFACE      (uint8_t)(5)      /* UAC Control Interface */

#define CY_FX_UAC_2_STREAM_INTERFACE    (uint8_t)(6)      /* UAC Streaming Interface : Alternate setting 1 */

#else // !USB_HID_INTERFACE

#define CY_FX_UAC_2_CTRL_INTERFACE      (uint8_t)(4)      /* UAC Control Interface */

#define CY_FX_UAC_2_STREAM_INTERFACE    (uint8_t)(5)      /* UAC Streaming Interface : Alternate setting 1 */

#endif // !USB_HID_INTERFACE

#endif

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Moderator
Moderator

Hi Flance,

我通过客户的这种方式,修改描述符为:

Windows是可以识别的。请问客户的设备不识别,window是显示描述符错误吗? 我目前看不出客户的描述符文件有什么问题。

/* Standard super speed configuration descriptor */

const uint8_t CyFxUsbSSConfigDscr[] __attribute__ ((aligned (32))) =

{

    /* Configuration descriptor */

    0x09,                           /* Descriptor size */

    CY_U3P_USB_CONFIG_DESCR,        /* Configuration descriptor type */

//    0x6A,0x00,                      /* Length of this descriptor and all sub descriptors */

    0xDB,0x00,

    0x04,                           /* Number of interfaces */

    0x01,                           /* Configuration number */

    0x00,                           /* Configuration string index */

    0x80,                           /* Config characteristics - Bus powered */

    0x32,                           /* Max power consumption of device (in 8mA unit) : 400mA */

    /* Interface association descriptor */

    0x08,                           /* Descriptor size */

    0x0B,      /* Interface association descr type */

    0x00,       /* Number of first interface */

    0x02,                           /* Number of video streaming i/f */

    0x01,                           /* Interface class: Audio Interface Class */

    0x02,                           /* Interface sub class: Audio Streaming Interface SubClass */

    0x00,                           /* Interface protocol code */

    0x07,                           /* String desc index for interface */

    /* Standard Audio Control Interface Descriptor */

    0x09,                           /* Descriptor Size */

    0x04,                           /* Interface Descriptor Type */

    0x00,                           /* Interface number */

    0x00,                           /* Alternate setting */

    0x00,                           /* Number of endpoints - 0 endpoints */

    0x01,                           /* Interface Class - Audio */

    0x01,                           /* Interface SubClass - Audio Control */

    0x00,                           /* Interface Protocol - Unused */

    0x00,                           /* Interface string index */

    /* Class Specific Audio Control Interface Descriptor */

    0x09,                           /* Descriptor Size */

    0x24,                           /* Descriptor Type - CS_INTERFACE */

    0x01,                           /* Descriptor SubType - Header */

    0x00, 0x01,                     /* Revision of class specification - 1.0 */

    0x1E, 0x00,                     /* Total size of class specific descriptors */

    0x01,                           /* Number of streaming Interfaces - 1 */

    0x03,                           /* Audio Streaming interface 1 belongs to this AudioControl Interface */

    /* Input terminal descriptor */

    0x0C,                           /* Descriptor size in bytes */

    0x24,                           /* CS Interface Descriptor */

    0x02,                           /* Input Terminal Descriptor subtype */

    0x01,                           /* ID Of the input terminal */

    0x01, 0x02,                     /* Microphone - terminal type */

    0x00,                           /* Association terminal - None */

    0x02,                           /* Number of channels - 2 */

    0x03, 0x00,                     /* spatial location of the logical channels - Front Left and Front Right */

    0x00,                           /* Channel names - Unused */

    0x00,                           /* String index for this descriptor - None */

    /* Output terminal descriptor */

    0x09,                           /* Descriptor size */

    0x24,                           /* Class specific interface desc type */

    0x03,                           /* Output terminal descriptor type */

    0x02,                           /* ID of this terminal */

    0x01, 0x01,                     /* Output terminal type: USB Streaming */

    0x00,                           /* Association terminal - Unused */

    0x01,                           /* Id of the terminal/unit to which this is connected - Input terminal id */

    0x00,                           /* String desc index : Not used */

    /* Standard Audio Streaming Interface Descriptor (Alternate setting 0) */

    0x09,                           /* Descriptor size */

    CY_U3P_USB_INTRFC_DESCR,        /* Interface descriptor type */

    0x01,                           /* Interface number */

    0x00,                           /* Alternate setting number */

    0x00,                           /* Number of end points : zero bandwidth */

    0x01,                           /* Interface class : Audio */

    0x02,                           /* Interface sub class : Audio Streaming */

    0x00,                           /* Interface protocol code : Unused */

    0x00,                           /* Interface descriptor string index */

    /* Standard Audio Streaming Interface descriptor (Alternate setting 1) */

    0x09,                           /* Descriptor size */

    CY_U3P_USB_INTRFC_DESCR,        /* Interface descriptor type */

    0x01,                           /* Interface number */

    0x01,                           /* Alternate setting number */

    0x01,                           /* Number of end points : 1 ISO EP */

    0x01,                           /* Interface Audio class */

    0x02,                           /* Interface Audio sub class - Audio Streaming */

    0x00,                           /* Interface protocol code : Unused */

    0x00,                           /* Interface descriptor string index */

    /* Class-specific Audio Streaming General Interface descriptor */

    0x07,                           /* Descriptor size */

    0x24,                           /* Class-specific AS i/f Type */

    0x01,                           /* Descriptotor subtype : AS General */

    0x02,                           /* Terminal Link - Output terminal id */                         

    0x01,                           /* Interface delay */

    0x01, 0x00,                     /* Audio data format - PCM */

    /* Class specific AS Format descriptor - Type I Format Descriptor */

    0x0B,                           /* Descriptor size */

    0x24,                           /* Class-specific Interface Descriptor Type */

    0x02,                           /* Format Type Descriptor subtype */

    0x01,                           /* PCM FORMAT_TYPE_I */

    0x02,                           /* Number of channels - 2 */

    0x02,                           /* Subframe size - 2 bytes per audio subframe */

    0x10,                           /* Bit resolution - 16 bits */

    0x01,                           /* Number of samping frequencies - 1 */

    0x80, 0xBB, 0x00,               /* Sampling frequency - 48000 Hz */

  

    /* Endpoint descriptor for ISO streaming Audio data */

    0x09,                           /* Descriptor size */

    CY_U3P_USB_ENDPNT_DESCR,        /* Endpoint descriptor type */

    CY_FX_EP_ISO_AUDIO,             /* Endpoint address and description */

    0x05,                           /* ISO End point : Async */

    0x60, 0x00,                     /* Transaction size - 96 bytes */

    0x03,                           /* Servicing interval for data transfers */

    0x00,                           /* bRefresh */

    0x00,                           /* bSynchAddress */

    /* Super speed endpoint companion descriptor */

    0x06,                           /* Descriptor size */

    CY_U3P_SS_EP_COMPN_DESCR,       /* SS endpoint companion descriptor type */

    0x00,                           /* Max no. of packets in a burst : 1 */

    0x00,                           /* Mult.: Max number of packets : 1 */

    0x60, 0x00,                     /* Bytes per interval : 1024 */

    /* Class Specific AS Isochronous Audio Data Endpoint Descriptor */

    0x07,                           /* Descriptor size in bytes */

    0x25,                           /* CS_ENDPOINT descriptor type */

    0x01,                           /* EP_GENERAL sub-descriptor type */

    0x00,                           /* bmAttributes - None  */

    0x00,                           /* bLockDelayUnits - Unused */

    0x00, 0x00                      /* wLockDelay - unused */

    ,

    /* Interface association descriptor */

    0x08,                           /* Descriptor size */

    0x0B,      /* Interface association descr type */

    0x02,       /* Number of first interface */

    0x02,                           /* Number of video streaming i/f */

    0x01,                           /* Interface class: Audio Interface Class */

    0x02,                           /* Interface sub class: Audio Streaming Interface SubClass */

    0x00,                           /* Interface protocol code */

    0x07,                           /* String desc index for interface */

    /* Standard Audio Control Interface Descriptor */

    0x09,                           /* Descriptor Size */

    0x04,                           /* Interface Descriptor Type */

    0x02,                           /* Interface number */

    0x00,                           /* Alternate setting */

    0x00,                           /* Number of endpoints - 0 endpoints */

    0x01,                           /* Interface Class - Audio */

    0x01,                           /* Interface SubClass - Audio Control */

    0x00,                           /* Interface Protocol - Unused */

    0x00,                           /* Interface string index */

    /* Class Specific Audio Control Interface Descriptor */

    0x09,                           /* Descriptor Size */

    0x24,                           /* Descriptor Type - CS_INTERFACE */

    0x01,                           /* Descriptor SubType - Header */

    0x00, 0x01,                     /* Revision of class specification - 1.0 */

    0x1E, 0x00,                     /* Total size of class specific descriptors */

    0x01,                           /* Number of streaming Interfaces - 1 */

    0x01,                           /* Audio Streaming interface 1 belongs to this AudioControl Interface */

    /* Input terminal descriptor */

    0x0C,                           /* Descriptor size in bytes */

    0x24,                           /* CS Interface Descriptor */

    0x02,                           /* Input Terminal Descriptor subtype */

    0x01,                           /* ID Of the input terminal */

    0x01, 0x02,                     /* Microphone - terminal type */

    0x00,                           /* Association terminal - None */

    0x02,                           /* Number of channels - 2 */

    0x03, 0x00,                     /* spatial location of the logical channels - Front Left and Front Right */

    0x00,                           /* Channel names - Unused */

    0x00,                           /* String index for this descriptor - None */

    /* Output terminal descriptor */

    0x09,                           /* Descriptor size */

    0x24,                           /* Class specific interface desc type */

    0x03,                           /* Output terminal descriptor type */

    0x02,                           /* ID of this terminal */

    0x01, 0x01,                     /* Output terminal type: USB Streaming */

    0x00,                           /* Association terminal - Unused */

    0x01,                           /* Id of the terminal/unit to which this is connected - Input terminal id */

    0x00,                           /* String desc index : Not used */

    /* Standard Audio Streaming Interface Descriptor (Alternate setting 0) */

    0x09,                           /* Descriptor size */

    CY_U3P_USB_INTRFC_DESCR,        /* Interface descriptor type */

    0x03,                           /* Interface number */

    0x00,                           /* Alternate setting number */

    0x00,                           /* Number of end points : zero bandwidth */

    0x01,                           /* Interface class : Audio */

    0x02,                           /* Interface sub class : Audio Streaming */

    0x00,                           /* Interface protocol code : Unused */

    0x00,                           /* Interface descriptor string index */

    /* Standard Audio Streaming Interface descriptor (Alternate setting 1) */

    0x09,                           /* Descriptor size */

    CY_U3P_USB_INTRFC_DESCR,        /* Interface descriptor type */

    0x03,                           /* Interface number */

    0x01,                           /* Alternate setting number */

    0x01,                           /* Number of end points : 1 ISO EP */

    0x01,                           /* Interface Audio class */

    0x02,                           /* Interface Audio sub class - Audio Streaming */

    0x00,                           /* Interface protocol code : Unused */

    0x00,                           /* Interface descriptor string index */

    /* Class-specific Audio Streaming General Interface descriptor */

    0x07,                           /* Descriptor size */

    0x24,                           /* Class-specific AS i/f Type */

    0x01,                           /* Descriptotor subtype : AS General */

    0x02,                           /* Terminal Link - Output terminal id */

    0x01,                           /* Interface delay */

    0x01, 0x00,                     /* Audio data format - PCM */

    /* Class specific AS Format descriptor - Type I Format Descriptor */

    0x0B,                           /* Descriptor size */

    0x24,                           /* Class-specific Interface Descriptor Type */

    0x02,                           /* Format Type Descriptor subtype */

    0x01,                           /* PCM FORMAT_TYPE_I */

    0x02,                           /* Number of channels - 2 */

    0x02,                           /* Subframe size - 2 bytes per audio subframe */

    0x10,                           /* Bit resolution - 16 bits */

    0x01,                           /* Number of samping frequencies - 1 */

    0x80, 0xBB, 0x00,               /* Sampling frequency - 48000 Hz */

    /* Endpoint descriptor for ISO streaming Audio data */

    0x09,                           /* Descriptor size */

    CY_U3P_USB_ENDPNT_DESCR,        /* Endpoint descriptor type */

    CY_FX_EP_ISO_AUDIO,             /* Endpoint address and description */

    0x05,                           /* ISO End point : Async */

    0x60, 0x00,                     /* Transaction size - 96 bytes */

    0x03,                           /* Servicing interval for data transfers */

    0x00,                           /* bRefresh */

    0x00,                           /* bSynchAddress */

    /* Super speed endpoint companion descriptor */

    0x06,                           /* Descriptor size */

    CY_U3P_SS_EP_COMPN_DESCR,       /* SS endpoint companion descriptor type */

    0x00,                           /* Max no. of packets in a burst : 1 */

    0x00,                           /* Mult.: Max number of packets : 1 */

    0x60, 0x00,                     /* Bytes per interval : 1024 */

    /* Class Specific AS Isochronous Audio Data Endpoint Descriptor */

    0x07,                           /* Descriptor size in bytes */

    0x25,                           /* CS_ENDPOINT descriptor type */

    0x01,                           /* EP_GENERAL sub-descriptor type */

    0x00,                           /* bmAttributes - None  */

    0x00,                           /* bLockDelayUnits - Unused */

    0x00, 0x00                      /* wLockDelay - unused */

};

Regards,
Eddie

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New Contributor II

Hi.Eddie

客户在win7系统下试验2台电脑,一台是在笔记本上试,第二路音频驱动没有加载成功;在台式电脑上,一个驱动都没加载出来。显示情况是:台式机没有发现任何新设备 , 笔记本可以驱动成为1路视频和1路音频, 新加的一路音频显示的感叹号。

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Moderator
Moderator

Hi Flance,

把第二路的这一项改一下就可以了

0x03,                           /* Audio Streaming interface 1 belongs to this AudioControl Interface */


Regards,
Eddie

View solution in original post

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