USB_InterfaceDescriptor_TypeDef Struct ReferencePlatform Middleware > USB > USB_COMMON
USB Interface Descriptor.
Definition at line
453
of file
em_usb.h
.
#include <
em_usb.h
>
Data Fields |
|
| uint8_t | bAlternateSetting |
| uint8_t | bDescriptorType |
| uint8_t | bInterfaceClass |
| uint8_t | bInterfaceNumber |
| uint8_t | bInterfaceProtocol |
| uint8_t | bInterfaceSubClass |
| uint8_t | bLength |
| uint8_t | bNumEndpoints |
| uint8_t | iInterface |
Field Documentation
| uint8_t USB_InterfaceDescriptor_TypeDef::bAlternateSetting |
Value used to select this alternate setting for the interface identified in the prior field.
Definition at line
459
of file
em_usb.h
.
Referenced by USBD_Init() , and USBH_PrintInterfaceDescriptor() .
| uint8_t USB_InterfaceDescriptor_TypeDef::bDescriptorType |
Constant INTERFACE Descriptor Type.
Definition at line
455
of file
em_usb.h
.
Referenced by USBH_PrintInterfaceDescriptor() .
| uint8_t USB_InterfaceDescriptor_TypeDef::bInterfaceClass |
Class code (assigned by the USB-IF). A value of zero is reserved for future standardization. If this field is set to FFH, the interface class is vendor-specific. All other values are reserved for assignment by the USB-IF.
Definition at line
464
of file
em_usb.h
.
Referenced by USBH_PrintInterfaceDescriptor() .
| uint8_t USB_InterfaceDescriptor_TypeDef::bInterfaceNumber |
Number of this interface. Zero-based value identifying the index in the array of concurrent interfaces supported by this configuration.
Definition at line
456
of file
em_usb.h
.
Referenced by USBD_Init() , and USBH_PrintInterfaceDescriptor() .
| uint8_t USB_InterfaceDescriptor_TypeDef::bInterfaceProtocol |
Protocol code (assigned by the USB). These codes are qualified by the value of the bInterfaceClass and the bInterfaceSubClass fields. If an interface supports class-specific requests, this code identifies the protocols that the device uses as defined by the specification of the device class. If this field is reset to zero, the device does not use a class-specific protocol on this interface. If this field is set to FFH, the device uses a vendor-specific protocol for this interface
Definition at line
475
of file
em_usb.h
.
Referenced by USBH_PrintInterfaceDescriptor() .
| uint8_t USB_InterfaceDescriptor_TypeDef::bInterfaceSubClass |
Subclass code (assigned by the USB-IF). These codes are qualified by the value of the bInterfaceClass field. If the bInterfaceClass field is reset to zero, this field must also be reset to zero. If the bInterfaceClass field is not set to FFH, all values are reserved forassignment by the USB-IF.
Definition at line
469
of file
em_usb.h
.
Referenced by USBH_PrintInterfaceDescriptor() .
| uint8_t USB_InterfaceDescriptor_TypeDef::bLength |
Size of this descriptor in bytes.
Definition at line
454
of file
em_usb.h
.
Referenced by USBH_PrintInterfaceDescriptor() .
| uint8_t USB_InterfaceDescriptor_TypeDef::bNumEndpoints |
Number of endpoints used by this interface (excluding endpoint zero). If this value is zero, this interface only uses the Default Control Pipe.
Definition at line
461
of file
em_usb.h
.
Referenced by USBH_PrintInterfaceDescriptor() .
| uint8_t USB_InterfaceDescriptor_TypeDef::iInterface |
Index of string descriptor describing this interface.
Definition at line
485
of file
em_usb.h
.
Referenced by USBH_PrintInterfaceDescriptor() .
The documentation for this struct was generated from the following file:
-
C:/cygwin/home/caamunds/work/super/platform/middleware/usb_gecko/inc/
em_usb.h