stm32 usb 设备枚举的问题，请教谢谢。

lhchen922

我想在Joystick 的例子上，再添加个Joystick_ConfigDescriptor1 做USB键盘，和Joystick_ConfigDescriptor2 做触摸屏，
当然Joystick_ReportDescriptor也是3个。

在Joystick_Data_Setup（）函数中，如下

/*******************************************************************************

* Function Name : Joystick_Data_Setup

* Description   : Handle the data class specific requests.

* Input         : Request Nb.

* Output         : None.

* Return         : USB_UNSUPPORT or USB_SUCCESS.

*******************************************************************************/

RESULT Joystick_Data_Setup(u8 RequestNo)

{

    u8 *(*CopyRoutine)(u16);

// DEBUG_MSG(USB_DEBUG,"Joystick_Data_Setup");

    CopyRoutine = NULL;

    if ((RequestNo == GET_DESCRIPTOR)

            && (Type_Recipient == (STANDARD_REQUEST | INTERFACE_RECIPIENT))

            && (pInformation->USBwIndex0 == 0))

    {

DEBUG_MSG(USB_DEBUG,"0000000000000000");

        if (pInformation->USBwValue1 == REPORT_DESCRIPTOR)

        {

            CopyRoutine = Joystick_GetReportDescriptor;

        }

        else if (pInformation->USBwValue1 == HID_DESCRIPTOR_TYPE)

        {

            CopyRoutine = Joystick_GetHIDDescriptor;

        }

    } /* End of GET_DESCRIPTOR */

    if ((RequestNo == GET_DESCRIPTOR)

            && (Type_Recipient == (STANDARD_REQUEST | INTERFACE_RECIPIENT))

            && (pInformation->USBwIndex0 == 1))

    {

DEBUG_MSG(USB_DEBUG,"111111111111111111");

        if (pInformation->USBwValue1 == REPORT_DESCRIPTOR)

        {

            CopyRoutine = Joystick_GetReportDescriptor1;

        }

        else if (pInformation->USBwValue1 == HID_DESCRIPTOR_TYPE)

        {

            CopyRoutine = Joystick_GetHIDDescriptor1;

        }

    }/**/// End of GET_DESCRIPTOR

#ifdef USING_TOUCHSCREEN

if ((RequestNo == GET_DESCRIPTOR)

           && (Type_Recipient == (STANDARD_REQUEST | INTERFACE_RECIPIENT))

           && (pInformation->USBwIndex0 == 2))

   {

    DEBUG_MSG(USB_DEBUG,"22222222222222222");

       if (pInformation->USBwValue1 == REPORT_DESCRIPTOR)

       {

           CopyRoutine = TouchScreen_GetReportDescriptor;

       }

       else if (pInformation->USBwValue1 == HID_DESCRIPTOR_TYPE)

       {

           CopyRoutine = TouchScreen_GetHIDDescriptor;

       }

   }/**/// End of GET_DESCRIPTOR

#endif

    /*** GET_PROTOCOL ***/

    if ((Type_Recipient == (CLASS_REQUEST | INTERFACE_RECIPIENT))

            && RequestNo == GET_PROTOCOL)

    {

        CopyRoutine = Joystick_GetProtocolValue;

    }

    if (CopyRoutine == NULL)

    {

        return USB_UNSUPPORT;

    }

    pInformation->Ctrl_Info.CopyData = CopyRoutine;

    pInformation->Ctrl_Info.Usb_wOffset = 0;

    (*CopyRoutine)(0);

    return USB_SUCCESS;

}
//end  RESULT Joystick_Data_Setup(u8 RequestNo)

pInformation->USBwIndex0这个值由哪个决定的？
如果要按上面这种方式做鼠标，键盘，触摸屏，要修改哪些参数，目前用一个Joystick_ConfigDescriptor1，
功能都已经实现了，就是不知道把他合在一起。。。

本人QQ:136411995，求指教，或论坛回复，谢谢。


原子兄，弄个插入代码的嘛。。

正点原子

回复【楼主位】lhchen922:
---------------------------------
这个我也不怎么熟哦，帮不到你，不好意思啊。