In i2c/dev-interface.rst it said
> All these transactions return -1 on failure
But actually the i2c_smbus_xxx functions return negative error numbers
on failure, instead of -1.
Fix the document.
Signed-off-by: Lei YU <mine260309@xxxxxxxxx>
---
Documentation/i2c/dev-interface.rst | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/Documentation/i2c/dev-interface.rst b/Documentation/i2c/dev-interface.rst
index 69c23a3..73b77c3 100644
--- a/Documentation/i2c/dev-interface.rst
+++ b/Documentation/i2c/dev-interface.rst
@@ -163,8 +163,8 @@ for details) through the following functions::
__s32 i2c_smbus_write_block_data(int file, __u8 command, __u8 length,
__u8 *values);
-All these transactions return -1 on failure; you can read errno to see
-what happened. The 'write' transactions return 0 on success; the
+All these transactions return negative value on failure; you can read errno to
+see what happened. The 'write' transactions return 0 on success; the
'read' transactions return the read value, except for read_block, which
returns the number of values read. The block buffers need not be longer
than 32 bytes.
--
2.7.4
