From 24a5bb7b1838dc4524dd353224e2aa09c22cac3b Mon Sep 17 00:00:00 2001 From: David Brownell Date: Mon, 14 Jul 2008 22:38:23 +0200 Subject: i2c-core: Return -Errno, not -1 More updates to the I2C stack's fault reporting: make the core stop returning "-1" (usually "-EPERM") for all faults. Instead, pass lower level fault code up the stack, or return some appropriate errno. This patch happens to touch almost exclusively SMBus calls. Signed-off-by: David Brownell Signed-off-by: Jean Delvare --- Documentation/i2c/writing-clients | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) (limited to 'Documentation/i2c') diff --git a/Documentation/i2c/writing-clients b/Documentation/i2c/writing-clients index d4cd4126d1a..ba5d1971f35 100644 --- a/Documentation/i2c/writing-clients +++ b/Documentation/i2c/writing-clients @@ -598,10 +598,10 @@ be added back later if needed: u8 command, u8 length, u8 *values) -All these transactions return -1 on failure. 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. +All these transactions return a negative errno value on failure. The 'write' +transactions return 0 on success; the 'read' transactions return the read +value, except for block transactions, which return the number of values +read. The block buffers need not be longer than 32 bytes. You can read the file `smbus-protocol' for more information about the actual SMBus protocol. -- cgit v1.2.3