diff options
author | Mauro Carvalho Chehab <mchehab@osg.samsung.com> | 2015-12-13 09:00:00 -0200 |
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committer | Mauro Carvalho Chehab <mchehab@osg.samsung.com> | 2016-01-11 12:19:13 -0200 |
commit | 75c7e295707e7a9d13691377f2154dcbae9a25f8 (patch) | |
tree | 14525ee9081c691973e120965eb22cd7961c78dd /include/media | |
parent | fe3c565e4cbcb2adeef063accc7852de739aaa36 (diff) |
[media] media-devnode.h: document the remaining struct/functions
There is one struct and two functions that were not documented.
Add the corresponding kernel-doc documentation for them.
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Diffstat (limited to 'include/media')
-rw-r--r-- | include/media/media-devnode.h | 27 |
1 files changed, 26 insertions, 1 deletions
diff --git a/include/media/media-devnode.h b/include/media/media-devnode.h index 77e9d3159be8..fe42f08e72bd 100644 --- a/include/media/media-devnode.h +++ b/include/media/media-devnode.h @@ -40,6 +40,20 @@ */ #define MEDIA_FLAG_REGISTERED 0 +/** + * struct media_file_operations - Media device file operations + * + * @owner: should be filled with %THIS_MODULE + * @read: pointer to the function that implements read() syscall + * @write: pointer to the function that implements write() syscall + * @poll: pointer to the function that implements poll() syscall + * @ioctl: pointer to the function that implements ioctl() syscall + * @compat_ioctl: pointer to the function that will handle 32 bits userspace + * calls to the the ioctl() syscall on a Kernel compiled with 64 bits. + * @open: pointer to the function that implements open() syscall + * @release: pointer to the function that will release the resources allocated + * by the @open function. + */ struct media_file_operations { struct module *owner; ssize_t (*read) (struct file *, char __user *, size_t, loff_t *); @@ -53,7 +67,7 @@ struct media_file_operations { /** * struct media_devnode - Media device node - * @fops: pointer to struct media_file_operations with media device ops + * @fops: pointer to struct &media_file_operations with media device ops * @dev: struct device pointer for the media controller device * @cdev: struct cdev pointer character device * @parent: parent device @@ -117,11 +131,22 @@ int __must_check media_devnode_register(struct media_devnode *mdev, */ void media_devnode_unregister(struct media_devnode *mdev); +/** + * media_devnode_data - returns a pointer to the &media_devnode + * + * @filp: pointer to struct &file + */ static inline struct media_devnode *media_devnode_data(struct file *filp) { return filp->private_data; } +/** + * media_devnode_is_registered - returns true if &media_devnode is registered; + * false otherwise. + * + * @mdev: pointer to struct &media_devnode. + */ static inline int media_devnode_is_registered(struct media_devnode *mdev) { return test_bit(MEDIA_FLAG_REGISTERED, &mdev->flags); |