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| author |   Guenter Roeck <linux@roeck-us.net> | 2015-03-12 09:58:28 -0400 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2015-03-25 13:28:58 +0100 |
| commit | ba61af6f3e4766c76aec0b5e7f2bb8277e1acdd0 (patch) | |
| tree | fd3720b54a1be4e2ac3367fa953c78af0c4c5160 /include/linux/sysfs.h | |
| parent | sysfs: Only accept read/write permissions for file attributes (diff) | |
| download | linux-dev-ba61af6f3e4766c76aec0b5e7f2bb8277e1acdd0.tar.xz linux-dev-ba61af6f3e4766c76aec0b5e7f2bb8277e1acdd0.zip | |
sysfs: Document struct attribute_group
Document variables defined in struct attribute_group to ensure
correct usage.
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/linux/sysfs.h')
| -rw-r--r-- | include/linux/sysfs.h | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/include/linux/sysfs.h b/include/linux/sysfs.h index ddad16148bd6..99382c0df17e 100644 --- a/include/linux/sysfs.h +++ b/include/linux/sysfs.h @@ -57,6 +57,21 @@ do { \ #define sysfs_attr_init(attr) do {} while (0) #endif +/** + * struct attribute_group - data structure used to declare an attribute group. + * @name: Optional: Attribute group name + * If specified, the attribute group will be created in + * a new subdirectory with this name. + * @is_visible: Optional: Function to return permissions associated with an + * attribute of the group. Will be called repeatedly for each + * attribute in the group. Only read/write permissions as well as + * SYSFS_PREALLOC are accepted. Must return 0 if an attribute is + * not visible. The returned value will replace static permissions + * defined in struct attribute or struct bin_attribute. + * @attrs: Pointer to NULL terminated list of attributes. + * @bin_attrs: Pointer to NULL terminated list of binary attributes. + * Either attrs or bin_attrs or both must be provided. + */ struct attribute_group { const char *name; umode_t (*is_visible)(struct kobject *, |