diff options
| author | Eric W. Biederman <ebiederm@xmission.com> | 2011-10-12 21:55:08 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2011-10-19 19:24:15 -0400 |
| commit | 672d82c18d222e51b40ff47e660fc54ec3e3e0a9 (patch) | |
| tree | 4b16b21bc0bcf0c7f9b21c7389e551cbd83e06a7 | |
| parent | 487505c257021fc06a7d05753cf27b011487f1dc (diff) | |
class: Implement support for class attrs in tagged sysfs directories.
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | drivers/base/class.c | 17 | ||||
| -rw-r--r-- | include/linux/device.h | 2 |
2 files changed, 17 insertions, 2 deletions
diff --git a/drivers/base/class.c b/drivers/base/class.c index 4f1df2e8fd74..b80d91cc8c3a 100644 --- a/drivers/base/class.c +++ b/drivers/base/class.c @@ -47,6 +47,18 @@ static ssize_t class_attr_store(struct kobject *kobj, struct attribute *attr, return ret; } +static const void *class_attr_namespace(struct kobject *kobj, + const struct attribute *attr) +{ + struct class_attribute *class_attr = to_class_attr(attr); + struct subsys_private *cp = to_subsys_private(kobj); + const void *ns = NULL; + + if (class_attr->namespace) + ns = class_attr->namespace(cp->class, class_attr); + return ns; +} + static void class_release(struct kobject *kobj) { struct subsys_private *cp = to_subsys_private(kobj); @@ -72,8 +84,9 @@ static const struct kobj_ns_type_operations *class_child_ns_type(struct kobject } static const struct sysfs_ops class_sysfs_ops = { - .show = class_attr_show, - .store = class_attr_store, + .show = class_attr_show, + .store = class_attr_store, + .namespace = class_attr_namespace, }; static struct kobj_type class_ktype = { diff --git a/include/linux/device.h b/include/linux/device.h index c20dfbfc49b4..ea70bb2e6878 100644 --- a/include/linux/device.h +++ b/include/linux/device.h @@ -350,6 +350,8 @@ struct class_attribute { char *buf); ssize_t (*store)(struct class *class, struct class_attribute *attr, const char *buf, size_t count); + const void *(*namespace)(struct class *class, + const struct class_attribute *attr); }; #define CLASS_ATTR(_name, _mode, _show, _store) \ |