diff options
| author | David Brownell <david-b@pacbell.net> | 2008-07-14 22:38:23 +0200 |
|---|---|---|
| committer | Jean Delvare <khali@mahadeva.delvare> | 2008-07-14 22:38:23 +0200 |
| commit | 24a5bb7b1838dc4524dd353224e2aa09c22cac3b (patch) | |
| tree | 8e7c7bb65b889e20d7a1067d41157b4b150cf045 /Documentation | |
| parent | 75415490d6adc1aecbf0cade0785b007957d0cfe (diff) | |
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 <dbrownell@users.sourceforge.net>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/i2c/writing-clients | 8 |
1 files changed, 4 insertions, 4 deletions
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. |