public class UsbEndpoint
extends Object
implements Parcelable
java.lang.Object | |
↳ | android.hardware.usb.UsbEndpoint |
A class representing an endpoint on a UsbInterface
. Endpoints are the channels for sending and receiving data over USB. Typically bulk endpoints are used for sending non-trivial amounts of data. Interrupt endpoints are used for sending small amounts of data, typically events, separately from the main data streams. The endpoint zero is a special endpoint for control messages sent from the host to device. Isochronous endpoints are currently unsupported.
Inherited constants |
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![]() android.os.Parcelable
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Fields |
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public static final Creator<UsbEndpoint> |
CREATOR
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Public methods |
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int |
describeContents() Describe the kinds of special objects contained in this Parcelable instance's marshaled representation. |
int |
getAddress() Returns the endpoint's address field. |
int |
getAttributes() Returns the endpoint's attributes field. |
int |
getDirection() Returns the endpoint's direction. |
int |
getEndpointNumber() Extracts the endpoint's endpoint number from its address |
int |
getInterval() Returns the endpoint's interval field. |
int |
getMaxPacketSize() Returns the endpoint's maximum packet size. |
int |
getType() Returns the endpoint's type. |
String |
toString() Returns a string representation of the object. |
void |
writeToParcel(Parcel parcel, int flags) Flatten this object in to a Parcel. |
Inherited methods |
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![]() java.lang.Object
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![]() android.os.Parcelable
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int describeContents ()
Describe the kinds of special objects contained in this Parcelable instance's marshaled representation. For example, if the object will include a file descriptor in the output of writeToParcel(Parcel, int)
, the return value of this method must include the CONTENTS_FILE_DESCRIPTOR
bit.
Returns | |
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int |
a bitmask indicating the set of special object types marshaled by this Parcelable object instance. |
int getAddress ()
Returns the endpoint's address field. The address is a bitfield containing both the endpoint number as well as the data direction of the endpoint. the endpoint number and direction can also be accessed via getEndpointNumber()
and getDirection()
.
Returns | |
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int |
the endpoint's address |
int getAttributes ()
Returns the endpoint's attributes field.
Returns | |
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int |
the endpoint's attributes |
int getDirection ()
Returns the endpoint's direction. Returns USB_DIR_OUT
if the direction is host to device, and USB_DIR_IN
if the direction is device to host.
Returns | |
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int |
the endpoint's direction |
int getEndpointNumber ()
Extracts the endpoint's endpoint number from its address
Returns | |
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int |
the endpoint's endpoint number |
int getInterval ()
Returns the endpoint's interval field.
Returns | |
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int |
the endpoint's interval |
int getMaxPacketSize ()
Returns the endpoint's maximum packet size.
Returns | |
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int |
the endpoint's maximum packet size |
int getType ()
Returns the endpoint's type. Possible results are:
USB_ENDPOINT_XFER_CONTROL
(endpoint zero) USB_ENDPOINT_XFER_ISOC
(isochronous endpoint) USB_ENDPOINT_XFER_BULK
(bulk endpoint) USB_ENDPOINT_XFER_INT
(interrupt endpoint) Returns | |
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int |
the endpoint's type |
String toString ()
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())
Returns | |
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String |
a string representation of the object. |
void writeToParcel (Parcel parcel, int flags)
Flatten this object in to a Parcel.
Parameters | |
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parcel |
Parcel : The Parcel in which the object should be written. |
flags |
int : Additional flags about how the object should be written. May be 0 or PARCELABLE_WRITE_RETURN_VALUE . |