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-rw-r--r--include/linux/i2c.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/include/linux/i2c.h b/include/linux/i2c.h
index 200cf13b00f6..c30833b7b073 100644
--- a/include/linux/i2c.h
+++ b/include/linux/i2c.h
@@ -654,6 +654,11 @@ static inline int i2c_adapter_id(struct i2c_adapter *adap)
return adap->nr;
}
+static inline u8 i2c_8bit_addr_from_msg(const struct i2c_msg *msg)
+{
+ return (msg->addr << 1) | (msg->flags & I2C_M_RD ? 1 : 0);
+}
+
/**
* module_i2c_driver() - Helper macro for registering a modular I2C driver
* @__i2c_driver: i2c_driver struct