diff options
| author | Andi Kleen <andi@firstfloor.org> | 2010-01-05 12:48:02 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2010-03-08 02:04:47 +0100 |
| commit | 38457ab3a0d36320370c715145ba6da514127194 (patch) | |
| tree | 0c3f729c450b18b439dc6ce7a1542d9e8d3dd8e3 | |
| parent | sysfs: Add sysfs_add/remove_files utility functions (diff) | |
| download | linux-38457ab3a0d36320370c715145ba6da514127194.tar.xz linux-38457ab3a0d36320370c715145ba6da514127194.zip | |
sysfs: Add attribute array to sysdev classes
Add a attribute array that is automatically registered and unregistered
to struct sysdev_class. This is similar to what struct class has.
A lot of drivers add list of attributes, so it's better to do
this easily in the common sysdev layer.
This adds a new field to struct sysdev_class. I audited the
whole tree and there are no dynamically allocated sysdev classes,
so this is fully compatible.
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| -rw-r--r-- | drivers/base/sys.c | 9 | ||||
| -rw-r--r-- | include/linux/sysdev.h | 2 |
2 files changed, 10 insertions, 1 deletions
diff --git a/drivers/base/sys.c b/drivers/base/sys.c index a38445c0f8c5..747c99e0568b 100644 --- a/drivers/base/sys.c +++ b/drivers/base/sys.c @@ -145,13 +145,20 @@ int sysdev_class_register(struct sysdev_class *cls) if (retval) return retval; - return kset_register(&cls->kset); + retval = kset_register(&cls->kset); + if (!retval && cls->attrs) + retval = sysfs_create_files(&cls->kset.kobj, + (const struct attribute **)cls->attrs); + return retval; } void sysdev_class_unregister(struct sysdev_class *cls) { pr_debug("Unregistering sysdev class '%s'\n", kobject_name(&cls->kset.kobj)); + if (cls->attrs) + sysfs_remove_files(&cls->kset.kobj, + (const struct attribute **)cls->attrs); kset_unregister(&cls->kset); } diff --git a/include/linux/sysdev.h b/include/linux/sysdev.h index c2458fa8376c..b6244f9b533f 100644 --- a/include/linux/sysdev.h +++ b/include/linux/sysdev.h @@ -27,10 +27,12 @@ struct sys_device; +struct sysdev_class_attribute; struct sysdev_class { const char *name; struct list_head drivers; + struct sysdev_class_attribute **attrs; /* Default operations for these types of devices */ int (*shutdown)(struct sys_device *); |