refactor(core): Extra event payloads to own types, refactor API.

* Make it easier to use *just* event payloads by defining the data,
  and then having event manager macros generate "wrapper structs"
* Improve is_*/cast_* APIs to hide details of full event struct.
* Create `zmk_event_t` typedef to pass to event handlers.
* Bring event names inline w/ consistent `zmk_` prefix.

1 files changed, 2 insertions, 4 deletions

diff --git a/app/src/usb.c b/app/src/usb.c
index 7900acefa3..c2f61a5b53 100644
--- a/app/src/usb.c
+++ b/app/src/usb.c
@@ -55,10 +55,8 @@ int zmk_usb_hid_send_report(const uint8_t *report, size_t len) {
 #endif /* CONFIG_ZMK_USB */
 
 static void raise_usb_status_changed_event() {
-    struct usb_conn_state_changed *ev = new_usb_conn_state_changed();
-    ev->conn_state = zmk_usb_get_conn_state();
-
-    ZMK_EVENT_RAISE(ev);
+    ZMK_EVENT_RAISE(new_zmk_usb_conn_state_changed(
+        (struct zmk_usb_conn_state_changed){.conn_state = zmk_usb_get_conn_state()}));
 }
 
 enum usb_dc_status_code zmk_usb_get_status() { return usb_status; }