From: Shubhrajyoti D <shubhrajyoti@xxxxxx>
In case of a NACK, it's wise to tell our clients
drivers about how many bytes were actually transferred.
Support this by adding an extra field to the struct
i2c_msg which gets incremented the amount of bytes
actually transferred.
Signed-off-by: Shubhrajyoti D <shubhrajyoti@xxxxxx>
Signed-off-by: Felipe Balbi <balbi@xxxxxx>
---
include/uapi/linux/i2c.h | 1 +
1 file changed, 1 insertion(+)
diff --git a/include/uapi/linux/i2c.h b/include/uapi/linux/i2c.h
index 0e949cb..4b35c9b 100644
--- a/include/uapi/linux/i2c.h
+++ b/include/uapi/linux/i2c.h
@@ -77,6 +77,7 @@ struct i2c_msg {
#define I2C_M_NO_RD_ACK 0x0800 /* if I2C_FUNC_PROTOCOL_MANGLING */
#define I2C_M_RECV_LEN 0x0400 /* length will be first received byte */
__u16 len; /* msg length */
+ __u16 transferred; /* actual bytes transferred */
__u8 *buf; /* pointer to msg data */
};
--
1.8.0.rc0
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