QMK QMK Firmware on Github Introduction Complete Newbs Guide QMK Basics Breaking Changes FAQ Detailed Guides Hardware Reference Features For Makers and Modders For a Deeper Understanding Other Topics QMK Internals (In Progress) Defines Input Callback Reg Midi Device Midi Device Setup Process Midi Util Send Functions Sysex Tools Powered by GitBook Midi Device group midi_device You use the functions when you are implementing your own midi device. You set a send function to actually send bytes via your device, this method is called when you call a send function with this device, for instance midi_send_cc You use the midi_device_input to process input data from the device and pass it through the device's associated callbacks. You use the midi_device_set_pre_input_process_func if you want to have a function called at the beginning of the device's process function, generally to poll for in...