Multiple USB Interfaces

I´m trying to get 02 USBTMC interfaces in a LXP1768 ARM7 with RL-ARM but the host just show me one.
Anyone know if it´s possible? Any example....

Following the Configuration

 /* USB Standard Device Descriptor */
const U8 USB_DeviceDescriptor[] = {
  USB_DEVICE_DESC_SIZE,              /* bLength */
  USB_DEVICE_DESCRIPTOR_TYPE,        /* bDescriptorType */
  WBVAL(0x0200), /* 2.00 */          /* bcdUSB */
  0x00,                              /* bDeviceClass */
  0x00,                              /* bDeviceSubClass */
  0x00,                              /* bDeviceProtocol */
  USB_MAX_PACKET0,                   /* bMaxPacketSize0 */
  WBVAL(0xC251),                     /* idVendor */
  WBVAL(0x2203),                     /* idProduct */
  WBVAL(0x0100), /* 1.00 */          /* bcdDevice */
  0x01,                              /* iManufacturer */
  0x02,                              /* iProduct */
  0x03,                              /* iSerialNumber */
  0x01                               /* bNumConfigurations: one possible configuration*/
};

/* USB Configuration Descriptor */
/*   All Descriptors (Configuration, Interface, Endpoint, Class, Vendor) */
const U8 USB_ConfigDescriptor[] = {
/* Configuration 1 */
  USB_CONFIGUARTION_DESC_SIZE,       /* bLength */
  USB_CONFIGURATION_DESCRIPTOR_TYPE, /* bDescriptorType */
  WBVAL(                             /* wTotalLength */
    1*USB_CONFIGUARTION_DESC_SIZE +
    1*USB_INTERFACE_DESC_SIZE     +
    2*USB_ENDPOINT_DESC_SIZE      +
    1*USB_ENDPOINT_DESC_SIZE      +
    1*USB_INTERFACE_DESC_SIZE     +
    2*USB_ENDPOINT_DESC_SIZE

  ),
  0x02,                              /* bNumInterfaces */
  0x01,                              /* bConfigurationValue: 0x01 is used to select this configuration */
  0x00,                              /* iConfiguration: no string to describe this configuration */
  USB_CONFIG_BUS_POWERED /*|*/       /* bmAttributes */
/*USB_CONFIG_REMOTE_WAKEUP*/,
  USB_CONFIG_POWER_MA(100),          /* bMaxPower, device power consumption is 100 mA */

/* Interface 0, Alternate Setting 0, MSC Class */
  USB_INTERFACE_DESC_SIZE,           /* bLength */
  USB_INTERFACE_DESCRIPTOR_TYPE,     /* bDescriptorType */
  0x00,                              /* bInterfaceNumber */
  0x00,                              /* bAlternateSetting */
  0x03,                              /* bNumEndpoints */
  USB_DEVICE_CLASS_USBTMC,          /* bInterfaceClass */
  0x03,                                          /* bInterfaceSubClass */
  0x00,                                                  /* bInterfaceProtocol */
  0x04,                              /* iInterface */
/* Endpoint, EP2 Bulk IN */
  USB_ENDPOINT_DESC_SIZE,            /* bLength */
  USB_ENDPOINT_DESCRIPTOR_TYPE,      /* bDescriptorType */
  USB_ENDPOINT_IN(2),                /* bEndpointAddress */
  USB_ENDPOINT_TYPE_BULK,            /* bmAttributes */
  WBVAL(0x0040),                     /* wMaxPacketSize */
  0x00,                              /* bInterval: ignore for Bulk transfer */

/* Endpoint, EP2 Bulk OUT */
  USB_ENDPOINT_DESC_SIZE,            /* bLength */
  USB_ENDPOINT_DESCRIPTOR_TYPE,      /* bDescriptorType */
  USB_ENDPOINT_OUT(2),               /* bEndpointAddress */
  USB_ENDPOINT_TYPE_BULK,            /* bmAttributes */
  WBVAL(0x0040),                     /* wMaxPacketSize */
  0x00,                              /* bInterval: ignore for Bulk transfer */
/* Endpoint, EP2 Bulk OUT */
  USB_ENDPOINT_DESC_SIZE,            /* bLength */
  USB_ENDPOINT_DESCRIPTOR_TYPE,      /* bDescriptorType */
  USB_ENDPOINT_IN(1),               /* bEndpointAddress */
  USB_ENDPOINT_TYPE_INTERRUPT,            /* bmAttributes */
  WBVAL(0x0040),                     /* wMaxPacketSize */
  0x20,                              /* bInterval: ignore for Bulk transfer */
/* Interface 0, Alternate Setting 0, MSC Class */
  USB_INTERFACE_DESC_SIZE,           /* bLength */
  USB_INTERFACE_DESCRIPTOR_TYPE,     /* bDescriptorType */
  0x01,                              /* bInterfaceNumber */
  0x00,                              /* bAlternateSetting */
  0x02,                              /* bNumEndpoints */
  USB_DEVICE_CLASS_USBTMC,          /* bInterfaceClass */
  0x03,                                          /* bInterfaceSubClass */
  0x00,                                                  /* bInterfaceProtocol */
  0x05,                              /* iInterface */
/* Endpoint, EP2 Bulk IN */
  USB_ENDPOINT_DESC_SIZE,            /* bLength */
  USB_ENDPOINT_DESCRIPTOR_TYPE,      /* bDescriptorType */
  USB_ENDPOINT_IN(3),                /* bEndpointAddress */
  USB_ENDPOINT_TYPE_BULK,            /* bmAttributes */
  WBVAL(0x0040),                     /* wMaxPacketSize */
  0x00,                              /* bInterval: ignore for Bulk transfer */

/* Endpoint, EP2 Bulk OUT */
  USB_ENDPOINT_DESC_SIZE,            /* bLength */
  USB_ENDPOINT_DESCRIPTOR_TYPE,      /* bDescriptorType */
  USB_ENDPOINT_OUT(3),               /* bEndpointAddress */
  USB_ENDPOINT_TYPE_BULK,            /* bmAttributes */
  WBVAL(0x0040),                     /* wMaxPacketSize */
  0x00,                              /* bInterval: ignore for Bulk transfer */
/* Terminator */
  0                                  /* bLength */
};

Thanks