# group `midi_device_setup_process` {#group__midi__device__setup__process} These are method that you must use to initialize and run a device. ## Summary Members | Descriptions --------------------------------|--------------------------------------------- `public void `[`midi_device_init`](#group__midi__device__setup__process_1gaf29deddc94ea98a59daa0bde1aefd9d9)`(`[`MidiDevice`](#struct__midi__device)` * device)` | Initialize a device. `public void `[`midi_device_process`](#group__midi__device__setup__process_1gaa3d5993d0e998a1b59bbf5ab9c7b492b)`(`[`MidiDevice`](#struct__midi__device)` * device)` | Process input data. ## Members #### `public void `[`midi_device_init`](#group__midi__device__setup__process_1gaf29deddc94ea98a59daa0bde1aefd9d9)`(`[`MidiDevice`](#struct__midi__device)` * device)` {#group__midi__device__setup__process_1gaf29deddc94ea98a59daa0bde1aefd9d9} Initialize a device. You must call this before using the device in question. #### Parameters * `device` the device to initialize #### `public void `[`midi_device_process`](#group__midi__device__setup__process_1gaa3d5993d0e998a1b59bbf5ab9c7b492b)`(`[`MidiDevice`](#struct__midi__device)` * device)` {#group__midi__device__setup__process_1gaa3d5993d0e998a1b59bbf5ab9c7b492b} Process input data. This method drives the input processing, you must call this method frequently if you expect to have your input callbacks called. #### Parameters * `device` the device to process