Struct that represents TLV data. More...

#include <sol-lwm2m.h>

Data Fields
uint16_t	api_version
	API version. More...

struct sol_buffer	content
	The TLV content. More...

uint16_t	id
	The id of the object/instance/resource. More...

enum sol_lwm2m_tlv_type	type
	The TLV type. More...

Detailed Description

Struct that represents TLV data.

The binary format TLV (Type-Length-Value) is used to represent an array of values or a singular value, using a compact binary representation.
It is needed by "Read" and "Write" operations on Object Instance(s) or on a Resource which supports multiple instances (Resource Instances).

The format is an array of the following byte sequence, where each array entry represents an Object Instance, Resource or Resource Instance:

Field	Format and Length	Description	Implemented as
Type	8-bits masked field	Bits 7-6: Indicates the type of identifier. Bits 5-0: All have special meanings as well.	enum sol_lwm2m_tlv.type
Identifier	8-bit or 16-bit unsigned integer as indicated by Bit 5 from Type	Object Instance, Resource or Resource Instance ID	uint16_t sol_lwm2m_tlv.id
Length	0-24bits unsigned integer as indicated by Bits 4-3 from Type	Length of the following field in bytes	size_t sol_buffer.capacity
Value	Sequence of bytes of size=Length	Value of the tag. The actual format depends on the Resource's data type See Also sol_lwm2m_resource_data_type	void * sol_lwm2m_tlv.content->data