Configuration Class

Package: GHIElectronics.Endpoint.Devices.UsbHost
Namespace: GHIElectronics.Endpoint.Devices.UsbHost.Descriptors

Configuration descriptor.

public class Configuration : BaseDescriptor

Constructors

Configuration(byte[] buffer)

public Configuration(byte[] buffer)

Constructs a new descriptor.

Parameter	Type	Description
buffer	byte[]	The buffer with which to populate the descriptor.

Configuration(byte[] buffer, int offset)

public Configuration(byte[] buffer, int offset)

Constructs a new descriptor.

Parameter	Type	Description
buffer	byte[]	The buffer with which to populate the descriptor.
offset	int	The offset into the buffer at which to start.

Configuration()

protected Configuration()

Constructs a new descriptor.

Properties

Attributes

public byte Attributes { get; set; }

A bitmap representing the attributes of the device.

Returns byte

AuxiliaryDescriptors

public Auxiliary[] AuxiliaryDescriptors { get; set; }

Child auxiliary descriptors.

Returns Auxiliary[]

Index

public byte Index { get; set; }

The configuration string descriptor index.

Returns byte

Interfaces

public Interface[] Interfaces { get; set; }

Child interface descriptors.

Returns Interface[]

MaxPower

public byte MaxPower { get; set; }

The maximum power consumption in 2mA units.

Returns byte

NumberOfInterfaces

public byte NumberOfInterfaces { get; set; }

The number of interfaces.

Returns byte

TotalLength

public ushort TotalLength { get; set; }

Total length of the the data returned in bytes.

Returns ushort

Value

public byte Value { get; set; }

The value to be used as an argument to select this configuration.

Returns byte

Methods

FillChildren(byte[] bytes, int offset)

public void FillChildren(byte[] bytes, int offset)

Walks a config-descriptor blob from offset to the end and fills Configuration.Interfaces, the nested endpoints, and Configuration.AuxiliaryDescriptors.

Parameter	Type	Description
bytes	byte[]	The full configuration-descriptor blob (length = Configuration.TotalLength).
offset	int	Byte offset to start parsing children: typically Configuration.FixedLength when the blob starts with the configuration header.

Fields

FixedLength

public const byte FixedLength = 9

The fixed length of this descriptor type in bytes.