Data Fields
attm_desc_128_t Struct Reference
BLE » Generic Attribute Profile (GATT) » Generic Attribute Profile (GATT) Server » Structures

Service(128 bits UUID) description. More...

`#include <ble_gatts.h>`

## Data Fields
uint8_t | uuid [16]
uint16_t | perm
uint16_t | ext_perm
uint16_t | max_size

## Detailed Description

Service(128 bits UUID) description.

## Field Documentation

## ◆ ext_perm

uint16_t attm_desc_128_t::ext_perm

Attribute extended permissions, see Attribute Extend Permission.

- For Primary/Secondary/Included Services, this field is not used, set to 0.
- For Characteristic Declaration, this field is not used, set to 0.
- For Characteristic Extended Properties, this field is not used, set to 0.
- For Client Characteristic Configuration and Server Characteristic Configuration, value must be saved in user space, user needn't to set this value location bit. The UUID length type must be set to 0.

## ◆ max_size

uint16_t attm_desc_128_t::max_size

Attribute max size.

- For Primary/Secondary/Included Services, this field is not used, set to 0.
- For Characteristic Declaration, this field is not used, set to 0.
- For Characteristic Extended Properties, this field contains 2-byte value.
- For Client Characteristic Configuration and Server Characteristic Configuration, this field is not used, set to 0.
- For others, this field is attribute max size.

## ◆ perm

uint16_t attm_desc_128_t::perm

Attribute permissions, see Attribute Permission.

- For Primary/Secondary/Included Services, must be READ_PERM_UNSEC.
- For Characteristic Declaration, must be READ_PERM_UNSEC.
- For Characteristic Extended Properties, must be READ_PERM_UNSEC.
- For Characteristic Presentation Format, must be READ_PERM_UNSEC.
- For Characteristic Aggregate Format, must be READ_PERM_UNSEC.

## ◆ uuid

uint8_t attm_desc_128_t::uuid[16]

128 bits UUID LSB First.

The documentation for this struct was generated from the following file:

- ble_gatts.h