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| author | David Brownell <david-b@pacbell.net> | 2007-02-13 22:09:00 +0100 |
|---|---|---|
| committer | Jean Delvare <khali@arrakis.delvare> | 2007-02-13 22:09:00 +0100 |
| commit | f37dd80ac2a67e4e4e921f99d34a1ceeb2488abb (patch) | |
| tree | c845e39b24feac331a9a67d49e0b8061f52131b3 /include | |
| parent | b8d6f45b32f6fe72bf7304183275e99332544ce1 (diff) | |
| download | lwn-f37dd80ac2a67e4e4e921f99d34a1ceeb2488abb.tar.gz lwn-f37dd80ac2a67e4e4e921f99d34a1ceeb2488abb.zip | |
i2c: Add driver suspend/resume/shutdown support
Driver model updates for the I2C core:
- Add new suspend(), resume(), and shutdown() methods. Use them in the
standard driver model style; document them.
- Minor doc updates to highlight zero-initialized fields in drivers, and
the driver model accessors for "clientdata".
If any i2c drivers were previously using the old suspend/resume calls
in "struct driver", they were getting warning messages ... and will
now no longer work. Other than that, this patch changes no behaviors;
and it lets I2C drivers use conventional PM and shutdown support.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/i2c.h | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/include/linux/i2c.h b/include/linux/i2c.h index 71e50d3e492f..9428092017e3 100644 --- a/include/linux/i2c.h +++ b/include/linux/i2c.h @@ -125,7 +125,12 @@ struct i2c_driver { * it must be freed here. */ int (*detach_client)(struct i2c_client *); - + + /* driver model interfaces that don't relate to enumeration */ + void (*shutdown)(struct i2c_client *); + int (*suspend)(struct i2c_client *, pm_message_t mesg); + int (*resume)(struct i2c_client *); + /* a ioctl like command that can be used to perform specific functions * with the device. */ |