| java.lang.Object | |
| ↳ | android.hardware.usb.UsbDevice |
This class represents a USB device attached to the android device with the android device
acting as the USB host.
Each device contains one or more UsbInterfaces, each of which contains a number of
UsbEndpoints (the channels via which data is transmitted over USB).
This class contains information (along with UsbInterface and UsbEndpoint)
that describes the capabilities of the USB device.
To communicate with the device, you open a UsbDeviceConnection for the device
and use UsbRequest to send and receive data on an endpoint.
controlTransfer(int, int, int, int, byte[], int, int) is used for control requests on endpoint zero.
For more information about communicating with USB hardware, read the USB developer guide.
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Inherited Constants | |||||||||||
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 From interface
android.os.Parcelable
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Describe the kinds of special objects contained in this Parcelable's
marshalled representation.
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Compares this instance with the specified object and indicates if they
are equal.
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Returns the devices's class field.
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Returns a unique integer ID for the device.
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Returns the name of the device.
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Returns the device's protocol field.
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Returns the device's subclass field.
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Returns the
UsbInterface at the given index. | |||||||||||
Returns the number of
UsbInterfaces this device contains. | |||||||||||
Returns a product ID for the device.
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Returns a vendor ID for the device.
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Returns an integer hash code for this object.
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Returns a string containing a concise, human-readable description of this
object.
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Flatten this object in to a Parcel.
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Inherited Methods | |||||||||||
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From class
java.lang.Object
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From interface
android.os.Parcelable
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Describe the kinds of special objects contained in this Parcelable's marshalled representation.
Compares this instance with the specified object and indicates if they
are equal. In order to be equal, o must represent the same object
as this instance using a class-specific comparison. The general contract
is that this comparison should be reflexive, symmetric, and transitive.
Also, no object reference other than null is equal to null.
The default implementation returns true only if this ==
o. See Writing a correct
equals method
if you intend implementing your own equals method.
The general contract for the equals and hashCode() methods is that if equals returns true for
any two objects, then hashCode() must return the same value for
these objects. This means that subclasses of Object usually
override either both methods or neither of them.
| o | the object to compare this instance with. |
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true if the specified object is equal to this Object; false otherwise.Returns the devices's class field.
Some useful constants for USB device classes can be found in UsbConstants.
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.
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.
Returns the device's protocol field.
Returns the device's subclass field.
Returns the UsbInterface at the given index.
Returns the number of UsbInterfaces this device contains.
Returns a product ID for the device.
Returns a vendor ID for the device.
Returns an integer hash code for this object. By contract, any two
objects for which equals(Object) returns true must return
the same hash code value. This means that subclasses of Object
usually override both methods or neither method.
Note that hash values must not change over time unless information used in equals comparisons also changes.
See Writing a correct
hashCode method
if you intend implementing your own hashCode method.
Returns a string containing a concise, human-readable description of this object. Subclasses are encouraged to override this method and provide an implementation that takes into account the object's type and data. The default implementation is equivalent to the following expression:
getClass().getName() + '@' + Integer.toHexString(hashCode())
See Writing a useful
toString method
if you intend implementing your own toString method.
Flatten this object in to a Parcel.
| parcel | The Parcel in which the object should be written. |
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| flags | Additional flags about how the object should be written.
May be 0 or PARCELABLE_WRITE_RETURN_VALUE.
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