ch.ntb.usb

Class Usb_Interface_Descriptor

java.lang.Object

ch.ntb.usb.Usb_Descriptor

ch.ntb.usb.Usb_Interface_Descriptor

public class Usb_Interface_Descriptor
extends Usb_Descriptor

Represents the descriptor of a USB interface.
The interface descriptor could be seen as a header or grouping of the endpoints into a functional group performing a single feature of the device.

The length of the interface descriptor is Usb_Descriptor.USB_DT_INTERFACE_SIZE and the type is Usb_Descriptor.USB_DT_INTERFACE.

Field Summary

Fields

Modifier and Type	Field and Description
static int	USB_MAXINTERFACES Maximum number of interfaces

Fields inherited from class ch.ntb.usb.Usb_Descriptor

USB_DT_CONFIG, USB_DT_CONFIG_SIZE, USB_DT_DEVICE, USB_DT_DEVICE_SIZE, USB_DT_ENDPOINT, USB_DT_ENDPOINT_AUDIO_SIZE, USB_DT_ENDPOINT_SIZE, USB_DT_HID, USB_DT_HUB, USB_DT_HUB_NONVAR_SIZE, USB_DT_INTERFACE, USB_DT_INTERFACE_SIZE, USB_DT_PHYSICAL, USB_DT_REPORT, USB_DT_STRING

Constructor Summary

Constructors

Constructor and Description
Usb_Interface_Descriptor()

Method Summary

Methods

Modifier and Type	Method and Description
byte	getBAlternateSetting() Returns the value used to select the alternate setting (LibusbJava.usb_set_altinterface(long, int)).
byte	getBInterfaceClass() Returns the class code (Assigned by www.usb.org).
byte	getBInterfaceNumber() Returns the number (identifier) of this interface.
byte	getBInterfaceProtocol() Returns the protocol code (Assigned by www.usb.org).
byte	getBInterfaceSubClass() Returns the subclass code (Assigned by www.usb.org).
byte	getBNumEndpoints() Returns the number of endpoints used for this interface.
Usb_Endpoint_Descriptor[]	getEndpoint() Returns an array of endpoint descriptors.
byte[]	getExtra() Returns the data of extra descriptor(s) if available.
int	getExtralen() Returns the number of bytes of the extra descriptor.
byte	getIInterface() Returns the index of the String descriptor describing this interface.
java.lang.String	toString()

Methods inherited from class ch.ntb.usb.Usb_Descriptor

getBDescriptorType, getBLength

Methods inherited from class java.lang.Object

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

Field Detail

USB_MAXINTERFACES

public static final int USB_MAXINTERFACES

Maximum number of interfaces

See Also:

Constant Field Values

Constructor Detail

Usb_Interface_Descriptor

public Usb_Interface_Descriptor()

Method Detail

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

getBAlternateSetting

public byte getBAlternateSetting()

Returns the value used to select the alternate setting (LibusbJava.usb_set_altinterface(long, int)).

Returns:

the alternate setting

getBInterfaceClass

public byte getBInterfaceClass()

Returns the class code (Assigned by www.usb.org).

Returns:

the class code

getBInterfaceNumber

public byte getBInterfaceNumber()

Returns the number (identifier) of this interface.

Returns:

the number (identifier) of this interface

getBInterfaceProtocol

public byte getBInterfaceProtocol()

Returns the protocol code (Assigned by www.usb.org).

Returns:

the protocol code

getBInterfaceSubClass

public byte getBInterfaceSubClass()

Returns the subclass code (Assigned by www.usb.org).

Returns:

the subclass code

getBNumEndpoints

public byte getBNumEndpoints()

Returns the number of endpoints used for this interface.

Returns:

the number of endpoints used for this interface

getEndpoint

public Usb_Endpoint_Descriptor[] getEndpoint()

Returns an array of endpoint descriptors.

Returns:

an array of endpoint descriptors

getExtra

public byte[] getExtra()

Returns the data of extra descriptor(s) if available.

Returns:

null or a byte array with the extra descriptor data

getExtralen

public int getExtralen()

Returns the number of bytes of the extra descriptor.

Returns:

the number of bytes of the extra descriptor

getIInterface

public byte getIInterface()

Returns the index of the String descriptor describing this interface.

Returns:

the index of the String descriptor