From 0161ee9dd38aafad6260ccb47bdc3e1b975eddbf Mon Sep 17 00:00:00 2001 From: Wolfram Sang <wsa+renesas@sang-engineering.com> Date: Sun, 29 Oct 2023 20:41:43 +0100 Subject: [PATCH] Documentation: i2c: add fault code for not supporting 10 bit addresses Document the specific fault code when 10 bit addresses cannot be supported. It is used for years, only the documentation slipped through the cracks. Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Signed-off-by: Wolfram Sang <wsa@kernel.org> --- Documentation/i2c/fault-codes.rst | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/Documentation/i2c/fault-codes.rst b/Documentation/i2c/fault-codes.rst index 80b14e718b525..b0864d1268bd4 100644 --- a/Documentation/i2c/fault-codes.rst +++ b/Documentation/i2c/fault-codes.rst @@ -39,6 +39,10 @@ Also, codes returned by adapter probe methods follow rules which are specific to their host bus (such as PCI, or the platform bus). +EAFNOSUPPORT + Returned by I2C adapters not supporting 10 bit addresses when + they are requested to use such an address. + EAGAIN Returned by I2C adapters when they lose arbitration in master transmit mode: some other master was transmitting different -- GitLab