UsbDevice

CREATOR

public static final Creator<UsbDevice> CREATOR

describeContents

public 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.

equals

public boolean equals (Object o)

Indicates whether some other object is "equal to" this one.

The equals method implements an equivalence relation on non-null object references:

• It is reflexive: for any non-null reference value x, x.equals(x) should return true.
• It is symmetric: for any non-null reference values x and y, x.equals(y) should return true if and only if y.equals(x) returns true.
• It is transitive: for any non-null reference values x, y, and z, if x.equals(y) returns true and y.equals(z) returns true, then x.equals(z) should return true.
• It is consistent: for any non-null reference values x and y, multiple invocations of x.equals(y) consistently return true or consistently return false, provided no information used in equals comparisons on the objects is modified.
• For any non-null reference value x, x.equals(null) should return false.

The equals method for class Object implements the most discriminating possible equivalence relation on objects; that is, for any non-null reference values x and y, this method returns true if and only if x and y refer to the same object (x == y has the value true).

Note that it is generally necessary to override the hashCode method whenever this method is overridden, so as to maintain the general contract for the hashCode method, which states that equal objects must have equal hash codes.

getConfiguration

public UsbConfiguration getConfiguration (int index)

Returns the UsbConfiguration at the given index.

getConfigurationCount

public int getConfigurationCount ()

Returns the number of UsbConfigurations this device contains.

getDeviceClass

public int getDeviceClass ()

Returns the devices's class field. Some useful constants for USB device classes can be found in UsbConstants.

getDeviceId

public int getDeviceId ()

Returns a unique integer ID for the device. This is a convenience for clients that want to use an integer to represent the device, rather than the device name. IDs are not persistent across USB disconnects.

getDeviceId

public static int getDeviceId (String name)

getDeviceName

public String getDeviceName ()

Returns the name of the device. In the standard implementation, this is the path of the device file for the device in the usbfs file system.

getDeviceName

public static String getDeviceName (int id)

getDeviceProtocol

public int getDeviceProtocol ()

Returns the device's protocol field.

getDeviceSubclass

public int getDeviceSubclass ()

Returns the device's subclass field.

getInterface

public UsbInterface getInterface (int index)

Returns the UsbInterface at the given index. For devices with multiple configurations, you will probably want to use UsbConfiguration.getInterface(int) instead.

getInterfaceCount

public int getInterfaceCount ()

Returns the number of UsbInterfaces this device contains. For devices with multiple configurations, you will probably want to use UsbConfiguration.getInterfaceCount() instead.

getManufacturerName

public String getManufacturerName ()

Returns the manufacturer name of the device.

getProductId

public int getProductId ()

Returns a product ID for the device.

getProductName

public String getProductName ()

Returns the product name of the device.

getSerialNumber

public String getSerialNumber ()

Returns the serial number of the device.

getVendorId

public int getVendorId ()

Returns a vendor ID for the device.

getVersion

public String getVersion ()

Returns the version number of the device.

hashCode

public int hashCode ()

Returns a hash code value for the object. This method is supported for the benefit of hash tables such as those provided by HashMap.

The general contract of hashCode is:

• Whenever it is invoked on the same object more than once during an execution of a Java application, the hashCode method must consistently return the same integer, provided no information used in equals comparisons on the object is modified. This integer need not remain consistent from one execution of an application to another execution of the same application.
• If two objects are equal according to the equals(Object) method, then calling the hashCode method on each of the two objects must produce the same integer result.
• It is not required that if two objects are unequal according to the equals(java.lang.Object) method, then calling the hashCode method on each of the two objects must produce distinct integer results. However, the programmer should be aware that producing distinct integer results for unequal objects may improve the performance of hash tables.

As much as is reasonably practical, the hashCode method defined by class Object does return distinct integers for distinct objects. (This is typically implemented by converting the internal address of the object into an integer, but this implementation technique is not required by the Java™ programming language.)

toString

public 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())
 

writeToParcel

public void writeToParcel (Parcel parcel, 
                int flags)

Flatten this object in to a Parcel.