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Subject[PATCH 5/8] i2c: uapi: add macro to describe support for all SMBus transfers
Date
Some I2C bus master drivers which support I2C_M_RECV_LEN do not set
the functionality bits of the now supported SMBus transfers. Add a
convenience macro to make this very simple.

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
---
include/uapi/linux/i2c.h | 5 +++++
1 file changed, 5 insertions(+)

diff --git a/include/uapi/linux/i2c.h b/include/uapi/linux/i2c.h
index 7786551eb177..92326ebde350 100644
--- a/include/uapi/linux/i2c.h
+++ b/include/uapi/linux/i2c.h
@@ -129,6 +129,11 @@ struct i2c_msg {
I2C_FUNC_SMBUS_I2C_BLOCK | \
I2C_FUNC_SMBUS_PEC)

+/* if I2C_M_RECV_LEN is also supported */
+#define I2C_FUNC_SMBUS_EMUL_ALL (I2C_FUNC_SMBUS_EMUL | \
+ I2C_FUNC_SMBUS_READ_BLOCK_DATA | \
+ I2C_FUNC_SMBUS_BLOCK_PROC_CALL)
+
/*
* Data for SMBus Messages
*/
--
2.29.2
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