程序包 ohos.usb

类 USBInterface

java.lang.Object

ohos.usb.USBInterface

public class USBInterface
extends Object

Get interface and endpoint information about a USB device.

When using this class, a USB device is attached to a USB host. According to the USB protocol specifications, a device contains one or more configurations, a configuration contains one or more interfaces, and an interface contains one or more endpoints.

从以下版本开始:

5

SystemCapability

SystemCapability.Usb#USB_MANAGER

构造器概要

构造器

构造器	说明
USBInterface(int id, int alternateSetting, String name, int Class, int subClass, int protocol)	Creates a USBInterface object.

方法概要

限定符和类型	方法	说明
int	getAlternateSetting()	Get the AlternateSetting field of a USB interface.
USBEndpoint	getEndpoint(int index)	Get a USBEndpoint instance of this interface by index.
int	getEndpointCount()	Get the number of endpoints.
int	getId()	Get the localId field of a USB interface.
int	getInterfaceClass()	Get the InterfaceClass field of a USB interface.
int	getInterfaceProtocol()	Get the InterfaceProtocol field of a USB interface.
int	getInterfaceSubclass()	Get the InterfaceSubclass field of a USB interface.
String	getName()	Get the localName field of a USB interface.
void	setEndpoints(USBEndpoint[] endpoints)	Sets the endpoints list for a local USBEndpoint object.
String	toString()	Returns a string representation of the object.

从类继承的方法 java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

构造器详细资料

USBInterface

public USBInterface(int id,
                    int alternateSetting,
                    String name,
                    int Class,
                    int subClass,
                    int protocol)

Creates a USBInterface object.

参数:

id - Indicates the ID of an interface.

alternateSetting - Indicates the alternative configuration of the interface.

name - Indicates the interface name.

class - Indicates the interface class.

subClass - Indicates the interface subclass.

protocol - Indicates the protocol supported by the interface.

从以下版本开始:

5

方法详细资料

getAlternateSetting

public int getAlternateSetting()

Get the AlternateSetting field of a USB interface.

返回:

Returns the AlternateSetting field.

从以下版本开始:

5

getId

public int getId()

Get the localId field of a USB interface.

返回:

Returns the InterfaceId field.

从以下版本开始:

5

getInterfaceClass

public int getInterfaceClass()

Get the InterfaceClass field of a USB interface.

返回:

Returns the InterfaceClass field.

从以下版本开始:

5

getInterfaceProtocol

public int getInterfaceProtocol()

Get the InterfaceProtocol field of a USB interface.

返回:

Returns the InterfaceProtocol field.

从以下版本开始:

5

getInterfaceSubclass

public int getInterfaceSubclass()

Get the InterfaceSubclass field of a USB interface.

返回:

Returns the InterfaceSubclass field.

从以下版本开始:

5

getName

public String getName()

Get the localName field of a USB interface.

返回:

Returns the InterfaceName field.

从以下版本开始:

5

getEndpoint

public USBEndpoint getEndpoint(int index)

Get a USBEndpoint instance of this interface by index.

参数:

index - Indicates the endpoint index.

返回:

Returns the USBEndpoint instance.

getEndpointCount

public int getEndpointCount()

Get the number of endpoints.

返回:

Returns the number of endpoints.

从以下版本开始:

5

setEndpoints

public void setEndpoints(USBEndpoint[] endpoints)

Sets the endpoints list for a local USBEndpoint object.

参数:

endpoints - Indicates the endpoints of the interface.

从以下版本开始:

5

toString

public String toString()

从类复制的说明: Object

Returns a string representation of the object. In general, the toString method returns a string that "textually represents" this object. The result should be a concise but informative representation that is easy for a person to read. It is recommended that all subclasses override this method.

The toString method for class Object returns a string consisting of the name of the class of which the object is an instance, the at-sign character `@', and the unsigned hexadecimal representation of the hash code of the object. In other words, this method returns a string equal to the value of:

 getClass().getName() + '@' + Integer.toHexString(hashCode())
 

覆盖:

toString 在类中 Object

返回:

a string representation of the object.