diff options
author | Mauro Carvalho Chehab <mchehab@osg.samsung.com> | 2015-12-13 10:40:45 (GMT) |
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committer | Mauro Carvalho Chehab <mchehab@osg.samsung.com> | 2016-01-11 14:19:13 (GMT) |
commit | fe3c565e4cbcb2adeef063accc7852de739aaa36 (patch) | |
tree | ebe6fb2ae24e1003dc4a13e505a35fe2935d134d /include/media/media-devnode.h | |
parent | b6e4ca8129ad65a0b1552586c1d42d2fd219661e (diff) | |
download | linux-fe3c565e4cbcb2adeef063accc7852de739aaa36.tar.xz |
[media] media-devnode: move kernel-doc documentation to the header
As we're using the headers file only for documentation, move the
two kernel-doc macros to the header, and fix it to avoid
warnings.
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Diffstat (limited to 'include/media/media-devnode.h')
-rw-r--r-- | include/media/media-devnode.h | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/include/media/media-devnode.h b/include/media/media-devnode.h index 17ddae3..77e9d31 100644 --- a/include/media/media-devnode.h +++ b/include/media/media-devnode.h @@ -86,8 +86,35 @@ struct media_devnode { /* dev to media_devnode */ #define to_media_devnode(cd) container_of(cd, struct media_devnode, dev) +/** + * media_devnode_register - register a media device node + * + * @mdev: media device node structure we want to register + * @owner: should be filled with %THIS_MODULE + * + * The registration code assigns minor numbers and registers the new device node + * with the kernel. An error is returned if no free minor number can be found, + * or if the registration of the device node fails. + * + * Zero is returned on success. + * + * Note that if the media_devnode_register call fails, the release() callback of + * the media_devnode structure is *not* called, so the caller is responsible for + * freeing any data. + */ int __must_check media_devnode_register(struct media_devnode *mdev, struct module *owner); + +/** + * media_devnode_unregister - unregister a media device node + * @mdev: the device node to unregister + * + * This unregisters the passed device. Future open calls will be met with + * errors. + * + * This function can safely be called if the device node has never been + * registered or has already been unregistered. + */ void media_devnode_unregister(struct media_devnode *mdev); static inline struct media_devnode *media_devnode_data(struct file *filp) |