p_value

uint8_t* ble_gatts_attr_t::p_value

Pointer to the attribute data. Please note that if the BLE_GATTS_VLOC_USER value location is selected in the attribute metadata, this will have to point to a buffer that remains valid through the lifetime of the attribute. This excludes usage of automatic variables that may go out of scope or any other temporary location. The stack may access that memory directly without the application's knowledge. For writable characteristics, this value must not be a location in flash memory.