add ev log in debug mode

frontend/ui/inputevent.lua

@@ -478,6 +478,12 @@ function Input:waitEvent(timeout_us, timeout_s)
 
 	if ok and ev then
 		ev = self:eventAdjustHook(ev)
+		if G_debug_mode then
+			local log = ev.type.."|"..ev.code.."|"
+						..ev.value.."|"..ev.time.sec.."|"..ev.time.usec.."\n"
+			G_ev_log:write(log)
+			G_ev_log:flush()
+		end
 		if ev.type == EV_KEY then
 			return self:handleKeyBoardEv(ev)
 		elseif ev.type == EV_ABS or ev.type == EV_SYN then

reader.lua

@@ -149,6 +149,10 @@ end
 local argidx = 1
 if ARGV[1] == "-d" then
 	argidx = argidx + 1	
+	G_debug_mode = true
+	os.execute("echo > ev.log")
+	-- create ev log file
+	G_ev_log = io.open("ev.log", "w")
 else
 	DEBUG = function() end
 end