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Functions | |
SVCALL (SD_BLE_L2CAP_CID_REGISTER, uint32_t, sd_ble_l2cap_cid_register(uint16_t cid)) | |
Register a CID with L2CAP. | |
SVCALL (SD_BLE_L2CAP_CID_UNREGISTER, uint32_t, sd_ble_l2cap_cid_unregister(uint16_t cid)) | |
Unregister a CID with L2CAP. | |
SVCALL (SD_BLE_L2CAP_TX, uint32_t, sd_ble_l2cap_tx(uint16_t conn_handle, ble_l2cap_header_t const *p_header, uint8_t const *p_data)) | |
Transmit an L2CAP packet. |
Function Documentation
SVCALL | ( | SD_BLE_L2CAP_CID_REGISTER | , |
uint32_t | , | ||
sd_ble_l2cap_cid_register(uint16_t cid) | |||
) |
Register a CID with L2CAP.
This registers a higher protocol layer with the L2CAP multiplexer, and is requried prior to all operations on the CID.
- Parameters:
-
[in] cid L2CAP CID.
- Return values:
-
NRF_SUCCESS Successfully registered a CID with the L2CAP layer. NRF_ERROR_INVALID_PARAM Invalid parameter(s) supplied, CID must be above BLE_L2CAP_CID_DYN_BASE. BLE_ERROR_L2CAP_CID_IN_USE L2CAP CID already in use. NRF_ERROR_NO_MEM Not enough memory to complete operation.
SVCALL | ( | SD_BLE_L2CAP_TX | , |
uint32_t | , | ||
sd_ble_l2cap_tx(uint16_t conn_handle, ble_l2cap_header_t const *p_header, uint8_t const *p_data) | |||
) |
Transmit an L2CAP packet.
- Note:
- It is important to note that a call to this function will consume an application buffer, and will therefore generate a BLE_EVT_TX_COMPLETE event when the packet has been transmitted. Please see the documentation of sd_ble_tx_buffer_count_get for more details.
- Parameters:
-
[in] conn_handle Connection Handle. [in] p_header Pointer to a packet header containing length and CID. [in] p_data Pointer to the data to be transmitted.
- Return values:
-
NRF_SUCCESS Successfully queued an L2CAP packet for transmission. NRF_ERROR_INVALID_ADDR Invalid pointer supplied. NRF_ERROR_INVALID_PARAM Invalid parameter(s) supplied, CIDs must be registered beforehand with sd_ble_l2cap_cid_register. NRF_ERROR_NOT_FOUND CID not found. NRF_ERROR_NO_MEM Not enough memory to complete operation. BLE_ERROR_NO_TX_BUFFERS Not enough application buffers available. NRF_ERROR_DATA_SIZE Invalid data size(s) supplied, see BLE_L2CAP_MTU_DEF.
SVCALL | ( | SD_BLE_L2CAP_CID_UNREGISTER | , |
uint32_t | , | ||
sd_ble_l2cap_cid_unregister(uint16_t cid) | |||
) |
Unregister a CID with L2CAP.
This unregisters a previously registerd higher protocol layer with the L2CAP multiplexer.
- Parameters:
-
[in] cid L2CAP CID.
- Return values:
-
NRF_SUCCESS Successfully unregistered the CID. NRF_ERROR_INVALID_PARAM Invalid parameter(s) supplied. NRF_ERROR_NOT_FOUND CID not previously registered.
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