程序包 ohos.usb

类 USBEndpoint

java.lang.Object

ohos.usb.USBEndpoint

public class USBEndpoint
extends Object

Get 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
USBEndpoint(int address, int attributes, int direction, int number, int interval, int maxPacketSize, int type)	Creates a USBEndpoint instance.

方法概要

限定符和类型	方法	说明
int	getAddress()	Get the endpoint address.
int	getAttributes()	Get the endpoint attributes.
int	getDirection()	Get the endpoint direction.
int	getEndpointNumber()	Get the endpoint number.
int	getInterval()	Get the endpoint interval.
int	getMaxPacketSize()	Get the maximum packet size of this endpoint.
int	getType()	Get the endpoint type.
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

USBEndpoint

public USBEndpoint(int address,
                   int attributes,
                   int direction,
                   int number,
                   int interval,
                   int maxPacketSize,
                   int type)

Creates a USBEndpoint instance.

参数:

address - Indicates the USB endpoint address, which consists of the endpoint ID and data transfer direction.

attributes - Indicates USB endpoint attributes, such as the data transfer type.

direction - Indicates the USB endpoint direction. Value 0 indicates OUT, and value 1 indicates IN.

number - Indicates the USB endpoint number, which uniquely identifies a USB endpoint on a USB device.

interval - Indicates the polling interval of the USB endpoint during data transfer.

maxPacketSize - Indicates the maximum packet size of the USB endpoint, that is, the maximum size of packets that can be received or transmitted by the endpoint after it is activated.

type - Indicates the USB endpoint type.

从以下版本开始:

5

方法详细资料

getAddress

public int getAddress()

Get the endpoint address.

返回:

Returns the endpoint address.

从以下版本开始:

5

getAttributes

public int getAttributes()

Get the endpoint attributes.

返回:

Returns the endpoint attributes.

从以下版本开始:

5

getDirection

public int getDirection()

Get the endpoint direction.

返回:

Returns the endpoint direction.

从以下版本开始:

5

getEndpointNumber

public int getEndpointNumber()

Get the endpoint number.

返回:

Returns the endpoint number.

从以下版本开始:

5

getInterval

public int getInterval()

Get the endpoint interval.

返回:

Returns the endpoint interval, in ms.

从以下版本开始:

5

getMaxPacketSize

public int getMaxPacketSize()

Get the maximum packet size of this endpoint.

返回:

Returns the maximum packet size.

从以下版本开始:

5

getType

public int getType()

Get the endpoint type.

返回:

Returns the endpoint type.

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.