Turns out the Nia is a special snowflake

Looks like it's actually outputting Phoenix-like event streams...

c.f., baskerville/plato#220

fbink_button_scan.c

@@ -235,7 +235,7 @@ static int
 		SEND_INPUT_EVENT(EV_SYN, SYN_REPORT, 0);
 	} else if (deviceQuirks.isKoboMk7) {
 		// NOTE: Roughly corresponds to what we call the "Snow" protocol in KOReader.
-		//       Should handle the H2O²r2, (Aura SEr2?), Clara HD, Forma & Nia
+		//       Should handle the H2O²r2, (Aura SEr2?), Clara HD, Forma.
 		//       And possibly the H2O²r1, although this one will need a dedicated quirk to compute the proper x/y coords.
 		SEND_INPUT_EVENT(EV_KEY, BTN_TOOL_FINGER, 1);
 		SEND_INPUT_EVENT(EV_KEY, BTN_TOUCH, 1);
@@ -303,7 +303,7 @@ static int
 		SEND_INPUT_EVENT(EV_SYN, SYN_REPORT, 0);
 	} else {
 		// NOTE: Corresponds to what we call the "Phoenix" protocol in KOReader.
-		//       Which means we should cover the: KA1, H2O, Aura, Aura SEr1, (Aura SEr2?), Glo HD & Touch 2.0
+		//       Which means we should cover the: KA1, H2O, Aura, Aura SEr1, (Aura SEr2?), Glo HD, Touch 2.0 & Nia.
 		SEND_INPUT_EVENT(EV_ABS, ABS_MT_TRACKING_ID, 1);
 		SEND_INPUT_EVENT(EV_ABS, ABS_MT_TOUCH_MAJOR, 1);
 		SEND_INPUT_EVENT(EV_ABS, ABS_MT_WIDTH_MAJOR, 1);