From e169dbf61a870b594bb9fe52f02fa1e002bf9373 Mon Sep 17 00:00:00 2001
From: Daniel Thompson <daniel@redfelineninja.org.uk>
Date: Sun, 20 Jun 2021 17:26:32 +0100
Subject: [PATCH] drivers: cst816s: Add a version() method

Signed-off-by: Daniel Thompson <daniel@redfelineninja.org.uk>
---
 wasp/drivers/cst816s.py | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/wasp/drivers/cst816s.py b/wasp/drivers/cst816s.py
index 314a63e..ca30f85 100644
--- a/wasp/drivers/cst816s.py
+++ b/wasp/drivers/cst816s.py
@@ -36,6 +36,12 @@ class CST816S:
         self.tp_rst.on()
         time.sleep_ms(50)
 
+    def version(self):
+        self.wake()
+        v = self.i2c.readfrom_mem(21, 0xa6, 4)
+        self.sleep()
+        return v
+
     def get_touch_data(self, pin_obj):
         """Receive a touch event by interrupt.