Record Class UsbControlTransfer

java.lang.Object

java.lang.Record

net.codecrete.usb.UsbControlTransfer

Record Components:

requestType - request type (bits 5 and 6 of bmRequestType)

recipient - recipient (bits 0–4 of bmRequestType)

request - request code (value between 0 and 255, called bRequest in USB specification)

value - value (value between 0 and 65535, called wValue in USB specification)

index - index (value between 0 and 65535, called wIndex in USB specification).

public record UsbControlTransfer(UsbRequestType requestType, UsbRecipient recipient, int request, int value, int index)
extends Record

USB control transfer parameters.

See description of "Setup Data" in the chapter "USB Device Requests" of the USB specification for additional information.

For control requests directed to an interface or endpoint, the lower byte of index contains the interface or endpoint number.

Constructor Summary

Constructors

Constructor	Description
UsbControlTransfer(UsbRequestType requestType, UsbRecipient recipient, int request, int value, int index)	Creates an instance of a UsbControlTransfer record class.

Method Summary

Modifier and Type	Method	Description
final boolean	equals(Object o)	Indicates whether some other object is "equal to" this one.
final int	hashCode()	Returns a hash code value for this object.
int	index()	Returns the value of the index record component.
UsbRecipient	recipient()	Returns the value of the recipient record component.
int	request()	Returns the value of the request record component.
UsbRequestType	requestType()	Returns the value of the requestType record component.
final String	toString()	Returns a string representation of this record class.
int	value()	Returns the value of the value record component.

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Details

UsbControlTransfer

public UsbControlTransfer(UsbRequestType requestType,
 UsbRecipient recipient,
 int request,
 int value,
 int index)

Creates an instance of a UsbControlTransfer record class.

Parameters:

requestType - the value for the requestType record component

recipient - the value for the recipient record component

request - the value for the request record component

value - the value for the value record component

index - the value for the index record component

Method Details

toString

public final String toString()

Returns a string representation of this record class. The representation contains the name of the class, followed by the name and value of each of the record components.

Specified by:

toString in class Record

Returns:

a string representation of this object

hashCode

public final int hashCode()

Returns a hash code value for this object. The value is derived from the hash code of each of the record components.

Specified by:

hashCode in class Record

Returns:

a hash code value for this object

equals

public final boolean equals(Object o)

Indicates whether some other object is "equal to" this one. The objects are equal if the other object is of the same class and if all the record components are equal. Reference components are compared with Objects::equals(Object,Object); primitive components are compared with the compare method from their corresponding wrapper classes.

Specified by:

equals in class Record

Parameters:

o - the object with which to compare

Returns:

true if this object is the same as the o argument; false otherwise.

requestType

public UsbRequestType requestType()

Returns the value of the requestType record component.

Returns:

the value of the requestType record component

recipient

public UsbRecipient recipient()

Returns the value of the recipient record component.

Returns:

the value of the recipient record component

request

public int request()

Returns the value of the request record component.

Returns:

the value of the request record component

value

public int value()

Returns the value of the value record component.

Returns:

the value of the value record component

index

public int index()

Returns the value of the index record component.

Returns:

the value of the index record component