1.1.2.1.2.4.24 GATTS_SetPreferredMtu

C

uint16_t GATTS_SetPreferredMtu(uint16_t preferredMtuPeriph, uint16_t preferredMtuCentral);

Description

GATT Server configures preferred ATT MTU. By default, BLE_ATT_MAX_MTU_LEN will be used to respond exchange MTU request from remote client. User specified ATT MTU will be used if the preferred MTU is configured.

Note

The API is optional. BLE_ATT_MAX_MTU_LEN will be used to respond if no configuration.

Parameters


Parameter	Description
[in] preferredMtuPeriph	Preferred ATT MTU when GAP role is peripheral.
[in] preferredMtuCentral	Preferred ATT MTU when GAP role is central.

Return values


Return value	Description
MBA_RES_SUCCESS	Successfully configured preferred MTU in GATT Server role.
MBA_RES_INVALID_PARA	Invalid MTU value usage.