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-rw-r--r--nuttx/drivers/input/tsc2007.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/nuttx/drivers/input/tsc2007.c b/nuttx/drivers/input/tsc2007.c
index bb8c7f01f..7708253ab 100644
--- a/nuttx/drivers/input/tsc2007.c
+++ b/nuttx/drivers/input/tsc2007.c
@@ -4,6 +4,11 @@
* Copyright (C) 2011 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
*
+ * References:
+ * "1.2V to 3.6V, 12-Bit, Nanopower, 4-Wire Micro TOUCH SCREEN CONTROLLER
+ * with I2C Interface," SBAS405A March 2007, Revised, March 2009, Texas
+ * Instruments Incorporated
+ *
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met: