linux-kernel - [PATCH 1/3] i2c: Add class for LEGO MINDSTORMS sensors

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Date:   Mon,  5 Sep 2016 15:40:12 -0500
From:   David Lechner <david@...hnology.com>
To:     Wolfram Sang <wsa@...-dreams.de>
Cc:     David Lechner <david@...hnology.com>, linux-i2c@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH 1/3] i2c: Add class for LEGO MINDSTORMS sensors

LEGO MINDSTORMS (robotics system from LEGO) has a number of sensors
that use I2C communications. These sensors have a well-know register
layout, so they are easily detected.

This class is being added so that future drivers for these sensors can
be automatically detected.

Signed-off-by: David Lechner <david@...hnology.com>
---
 include/linux/i2c.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/include/linux/i2c.h b/include/linux/i2c.h
index fffdc27..3eab858 100644
--- a/include/linux/i2c.h
+++ b/include/linux/i2c.h
@@ -638,6 +638,7 @@ i2c_unlock_adapter(struct i2c_adapter *adapter)
 #define I2C_CLASS_DDC		(1<<3)	/* DDC bus on graphics adapters */
 #define I2C_CLASS_SPD		(1<<7)	/* Memory modules */
 #define I2C_CLASS_DEPRECATED	(1<<8)	/* Warn users that adapter will stop using classes */
+#define I2C_CLASS_LEGO		(1<<9)	/* LEGO MINDSTORMS sensors */
 
 /* Internal numbers to terminate lists */
 #define I2C_CLIENT_END		0xfffeU
-- 
2.7.4