Package ch.ntb.usb
Class Usb_Interface_Descriptor
java.lang.Object
ch.ntb.usb.Usb_Descriptor
ch.ntb.usb.Usb_Interface_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
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
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Field Summary
FieldsFields 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
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Constructor Summary
Constructors -
Method Summary
Modifier and TypeMethodDescriptionbyte
Returns the value used to select the alternate setting (LibusbJava.usb_set_altinterface(long, int)
).byte
Returns the class code (Assigned by www.usb.org).byte
Returns the number (identifier) of this interface.byte
Returns the protocol code (Assigned by www.usb.org).byte
Returns the subclass code (Assigned by www.usb.org).byte
Returns the number of endpoints used for this interface.Returns an array of endpoint descriptors.byte[]
getExtra()
Returns the data of extra descriptor(s) if available.int
Returns the number of bytes of the extra descriptor.byte
Returns the index of the String descriptor describing this interface.toString()
Methods inherited from class ch.ntb.usb.Usb_Descriptor
getBDescriptorType, getBLength
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Field Details
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USB_MAXINTERFACES
public static final int USB_MAXINTERFACESMaximum number of interfaces- See Also:
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Constructor Details
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Usb_Interface_Descriptor
public Usb_Interface_Descriptor()
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Method Details
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toString
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getBAlternateSetting
public byte getBAlternateSetting()Returns the value used to select the alternate setting (LibusbJava.usb_set_altinterface(long, int)
).- Returns:
- the alternate setting
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getBInterfaceClass
public byte getBInterfaceClass()Returns the class code (Assigned by www.usb.org).- Returns:
- the class code
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getBInterfaceNumber
public byte getBInterfaceNumber()Returns the number (identifier) of this interface.- Returns:
- the number (identifier) of this interface
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getBInterfaceProtocol
public byte getBInterfaceProtocol()Returns the protocol code (Assigned by www.usb.org).- Returns:
- the protocol code
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getBInterfaceSubClass
public byte getBInterfaceSubClass()Returns the subclass code (Assigned by www.usb.org).- Returns:
- the subclass code
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getBNumEndpoints
public byte getBNumEndpoints()Returns the number of endpoints used for this interface.- Returns:
- the number of endpoints used for this interface
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getEndpoint
Returns an array of endpoint descriptors.- Returns:
- an array of endpoint descriptors
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getExtra
public byte[] getExtra()Returns the data of extra descriptor(s) if available.- Returns:
- null or a byte array with the extra descriptor data
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getExtralen
public int getExtralen()Returns the number of bytes of the extra descriptor.- Returns:
- the number of bytes of the extra descriptor
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getIInterface
public byte getIInterface()Returns the index of the String descriptor describing this interface.- Returns:
- the index of the String descriptor
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