📦 linux-manual

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V (continued)

v4l2_subdev_set_routing(9)Set given routing to subdev state✨
v4l2_subdev_set_routing_with_fmt(9)Set given routing and format to subdev state✨
v4l2_subdev_state_get_compose(9)Get pointer to a stream compose rectangle✨
v4l2_subdev_state_get_crop(9)Get pointer to a stream crop rectangle✨
v4l2_subdev_state_get_format(9)Get pointer to a stream format✨
v4l2_subdev_state_get_interval(9)Get pointer to a stream frame interval✨
v4l2_subdev_state_get_opposite_stream_format(9)Get pointer to opposite stream format✨
v4l2_subdev_state_xlate_streams(9)Translate streams from one pad to another✨
v4l2_subdev_to_v4l2_flash(9)Returns a &struct v4l2_flash from the &struct v4l2_subdev embedded on it.✨
v4l2_subdev_unlock_state(9)Unlocks the subdev state✨
v4l2_subdev_unlock_states(9)Unlock two sub-device states✨
v4l2_timeval_to_ns(9)Convert timeval to nanoseconds✨
v4l2_try_ext_ctrls(9)Helper function to implement :ref:`VIDIOC_TRY_EXT_CTRLS <vidioc_g_ext_ctrls>` ioctl✨
v4l2_valid_dv_timings(9)are these timings valid?✨
v4l2_video_std_construct(9)Ancillary routine that fills in the fields of a &v4l2_standard structure according to the @id parameter.✨
v4l2_video_std_frame_period(9)Ancillary routine that fills a struct &v4l2_fract pointer with the default framerate fraction.✨
v4l2_vp9_adapt_coef_probs(9)Perform backward update of vp9 coefficients probabilities✨
v4l2_vp9_adapt_noncoef_probs(9)Perform backward update of vp9 non- coefficients probabilities✨
v4l2_vp9_fw_update_probs(9)Perform forward update of vp9 probabilities✨
v4l2_vp9_reset_frame_ctx(9)Reset appropriate frame context✨
v4l2_vp9_seg_feat_enabled(9)Check if a segmentation feature is enabled✨
v4l_bound_align_image(9)adjust video dimensions according to a given constraints.✨
v4l_disable_media_source(9)Release media source✨
v4l_enable_media_source(9)Hold media source for exclusive use if free✨
v4l_printk_ioctl(9)Ancillary routine that prints the ioctl in a human- readable format.✨
v4l_video_std_enumstd(9)Ancillary routine that fills in the fields of a &v4l2_standard structure according to the @id and @vs->index parameters.✨
v9fs_alloc_inode(9)helper function to allocate an inode✨
v9fs_alloc_rdir_buf(9)Allocate buffer used for read and readdir✨
v9fs_at_to_dotl_flags(9)convert Linux specific AT flags to plan 9 AT flag.✨
v9fs_blank_wstat(9)helper function to setup a 9P stat structure✨
v9fs_cached_dentry_delete(9)called when dentry refcount equals 0✨
v9fs_create(9)Create a file✨
v9fs_dec_count(9)helper functon to drop i_nlink.✨
v9fs_dentry_fid_remove(9)Release all dentry's fids✨
v9fs_dentry_init(9)Initialize v9fs dentry data✨
v9fs_dentry_release(9)called when dentry is going to be freed✨
v9fs_destroy_inode_cache(9)destroy the cache of 9P inode✨
v9fs_dir_readdir(9)iterate through a directory✨
v9fs_dir_readdir_dotl(9)iterate through a directory✨
v9fs_dir_release(9)close a directory or a file✨
v9fs_evict_inode(9)Remove an inode from the inode cache✨
v9fs_fid_add(9)add a fid to a dentry✨
v9fs_fid_find(9)retrieve a fid that belongs to the specified uid✨
v9fs_fid_find_inode(9)search for an open fid off of the inode list✨
v9fs_fid_lookup(9)lookup for a fid, try to walk if not found✨
v9fs_file_flock_dotl(9)lock a file✨
v9fs_file_lock(9)lock a file (or directory)✨
v9fs_file_lock_dotl(9)lock a file (or directory)✨
v9fs_file_open(9)open a file (or directory)✨
v9fs_file_read_iter(9)read from a file✨
v9fs_file_write_iter(9)write to a file✨
v9fs_free_inode(9)destroy an inode✨
v9fs_free_request(9)Cleanup request initialized by v9fs_init_rreq✨
v9fs_get_default_trans(9)get the default transport✨
v9fs_get_fsgid_for_create(9)Helper function to get the gid for a new object✨
v9fs_get_inode_from_fid(9)Helper routine to populate an inode by issuing a attribute request✨
v9fs_get_new_inode_from_fid(9)Helper routine to populate an inode by issuing a attribute request✨
v9fs_get_trans_by_name(9)get transport with the matching name✨
v9fs_get_tree(9)create the mountable root and superblock✨
v9fs_init_inode_cache(9)initialize a cache for 9P Returns 0 on success.✨
v9fs_init_request(9)Initialise a request✨
v9fs_issue_read(9)Issue a read from 9P✨
v9fs_kill_super(9)Kill Superblock✨
v9fs_ndentry_is_expired(9)Check if negative dentry lookup has expired✨
v9fs_ndentry_refresh_timeout(9)Refresh negative dentry lookup cache timeout✨
v9fs_open_fid_add(9)add an open fid to an inode✨
v9fs_open_to_dotl_flags(9)convert Linux specific open flags to plan 9 open flag.✨
v9fs_parse_param(9)parse a mount option into the filesystem context✨
v9fs_put_trans(9)put trans✨
v9fs_register_trans(9)register a new transport with 9p✨
v9fs_remove(9)helper function to remove files and directories✨
v9fs_session_begin_cancel(9)Begin terminate of a session✨
v9fs_session_cancel(9)terminate a session✨
v9fs_session_close(9)shutdown a session✨
v9fs_session_init(9)initialize session✨
v9fs_stat2inode(9)populate an inode structure with mistat info✨
v9fs_stat2inode_dotl(9)populate an inode structure with stat info✨
v9fs_sysfs_cleanup(9)Unregister the v9fs sysfs interface✨
v9fs_sysfs_init(9)Initialize the v9fs sysfs interface✨
v9fs_uflags2omode(9)convert posix open flags to plan 9 mode bits✨
v9fs_unregister_trans(9)unregister a 9p transport✨
v9fs_vfs_create(9)VFS hook to create a regular file✨
v9fs_vfs_create_dotl(9)VFS hook to create files for 9P2000.L protocol.✨
v9fs_vfs_get_link(9)follow a symlink path✨
v9fs_vfs_get_link_dotl(9)follow a symlink path✨
v9fs_vfs_get_link_nocache_dotl(9)Resolve a symlink directly.✨
v9fs_vfs_getattr(9)retrieve file metadata✨
v9fs_vfs_link(9)create a hardlink✨
v9fs_vfs_link_dotl(9)create a hardlink for dotl✨
v9fs_vfs_lookup(9)VFS lookup hook to "walk" to a new inode✨
v9fs_vfs_mkdir(9)VFS mkdir hook to create a directory✨
v9fs_vfs_mkdir_dotl(9)VFS mkdir hook to create a directory✨
v9fs_vfs_mknod(9)create a special file✨
v9fs_vfs_mknod_dotl(9)create a special file✨
v9fs_vfs_mkspecial(9)create a special file✨
v9fs_vfs_rename(9)VFS hook to rename an inode✨
v9fs_vfs_rmdir(9)VFS unlink hook to delete a directory✨
v9fs_vfs_setattr(9)set file metadata✨
v9fs_vfs_setattr_dotl(9)set file metadata✨
v9fs_vfs_symlink(9)helper function to create symlinks✨
v9fs_vfs_unlink(9)VFS unlink hook to delete an inode✨
va_range_fini(9)clear a virtual addresses range.✨
va_range_init(9)initialize virtual addresses range.✨
val_mask_to_str(9)convert a perm mask to its short string✨
Valid integration times (IT)(9)✨
valid_event_struct(9)- Determines if event is valid.✨
valid_type(9)Check if @type is valid or not.✨
validate_av1_sequence(9)validate AV1 sequence header fields✨
validate_cmdline_cstate(9)Validate a C-state from cmdline.✨
validate_completed_page(9)Check that a page completion which is being freed to the cache referred to a valid page and is in a valid state.✨
validate_data_node(9)validate data nodes for bulk-read.✨
validate_ec_hdr(9)validate an erase counter header.✨
validate_enumeration_input(9)Validate input of current_value against possible values✨
validate_hash_algo(9)Block setxattr with unsupported hash algorithms✨
validate_hb_ctrs_cnt(9)checks if the number of heartbeat counters should be updated by one to support the currently loaded firmware.✨
validate_inode(9)validate inode.✨
validate_integer_input(9)Validate input of current_value against lower and upper bound✨
validate_master(9)validate master node.✨
validate_mem(9)memory probe function✨
validate_new_device_config(9)Check whether a new device config represents a valid modification to an existing config.✨
validate_nnode(9)validate a nnode.✨
validate_ordered_list_input(9)Validate input of current_value against possible values✨
validate_partition(9)Validate a cpuset partition configuration✨
validate_pnode(9)validate a pnode.✨
validate_policy(9)validate a parsed policy.✨
validate_recovery_journal_entry(9)Validate a recovery journal entry.✨
validate_ref(9)validate a reference node.✨
validate_sb(9)validate superblock node.✨
validate_str_input(9)Validate input of current_value against min and max lengths✨
validate_string_input(9)Validate input of current_value against min and max lengths✨
validate_version(9)Check whether a version matches an expected version.✨
validate_vid_hdr(9)validate a volume identifier header.✨
validate_vlan(9)check if the ice_vlan passed in is valid✨
valuable(9)determine whether LEB properties are valuable.✨
vangogh_get_gfxoff_entrycount(9)get gfxoff entry count✨
vangogh_get_gfxoff_residency(9)✨
vangogh_get_gfxoff_status(9)Get gfxoff status✨
vangogh_set_gfxoff_residency(9)✨
var psc_i2s_dai_ops(9)template CPU Digital Audio Interface✨
var tascam_capture_ops(9)ALSA PCM operations for capture.✨
var tascam_pcm_hw(9)Hardware capabilities for TASCAM US-144MKII PCM.✨
var tascam_playback_ops(9)ALSA PCM operations for playback.✨
var v4l2_field_names(9)Helper array mapping ``V4L2_FIELD_*`` to strings.✨
var v4l2_type_names(9)Helper array mapping ``V4L2_BUF_TYPE_*`` to strings.✨
var xt_recseq(9)recursive seqcount for netfilter use✨
Variable refresh properties(9)✨
vb2_buffer_done(9)inform videobuf2 that an operation on a buffer is finished.✨
vb2_buffer_in_use(9)return true if the buffer is in use and the queue cannot be freed (by the means of VIDIOC_REQBUFS(0)) call.✨
vb2_clear_last_buffer_dequeued(9)clear last buffer dequeued flag of queue.✨
vb2_common_vm_close(9)decrease refcount of the vma✨
vb2_common_vm_open(9)increase refcount of the vma✨
vb2_core_create_bufs(9)Allocate buffers and any required auxiliary structs✨
vb2_core_dqbuf(9)Dequeue a buffer to the userspace✨
vb2_core_expbuf(9)Export a buffer as a file descriptor.✨
vb2_core_poll(9)implements poll syscall() logic.✨
vb2_core_prepare_buf(9)Pass ownership of a buffer from userspace to the kernel.✨
vb2_core_qbuf(9)Queue a buffer from userspace✨
vb2_core_querybuf(9)query video buffer information.✨
vb2_core_queue_init(9)initialize a videobuf2 queue✨
vb2_core_queue_release(9)stop streaming, release the queue and free memory✨
vb2_core_remove_bufs(9)✨
vb2_core_reqbufs(9)Initiate streaming.✨
vb2_core_streamoff(9)Implements VB2 stream OFF logic✨
vb2_core_streamon(9)Implements VB2 stream ON logic✨
vb2_create_bufs(9)Wrapper for vb2_core_create_bufs() that also verifies the memory and type values.✨
vb2_create_framevec(9)map virtual addresses to pfns✨
vb2_destroy_framevec(9)release vector of mapped pfns✨
vb2_discard_done(9)discard all buffers marked as DONE.✨
vb2_dma_contig_set_max_seg_size(9)configure DMA max segment size✨
vb2_dqbuf(9)Dequeue a buffer to the userspace✨
vb2_expbuf(9)Export a buffer as a file descriptor✨
vb2_fileio_is_active(9)return true if fileio is active.✨
vb2_find_buffer(9)Find a buffer with given timestamp✨
vb2_get_buffer(9)get a buffer from a queue✨
vb2_get_drv_priv(9)return driver private data associated with the queue.✨
vb2_get_num_buffers(9)get the number of buffer in a queue✨
vb2_get_plane_payload(9)get bytesused for the plane plane_no✨
vb2_get_unmapped_area(9)map video buffers into application address space.✨
vb2_is_busy(9)return busy status of the queue.✨
vb2_is_streaming(9)return streaming status of the queue.✨
vb2_mmap(9)map video buffers into application address space.✨
vb2_plane_cookie(9)Return allocator specific cookie for the given plane.✨
vb2_plane_size(9)return plane size in bytes.✨
vb2_plane_vaddr(9)Return a kernel virtual address of a given plane.✨
vb2_poll(9)implements poll userspace operation✨
vb2_prepare_buf(9)Pass ownership of a buffer from userspace to the kernel✨
vb2_qbuf(9)Queue a buffer from userspace✨
vb2_querybuf(9)Query video buffer information✨
vb2_queue_add_buffer(9)add a buffer to a queue✨
vb2_queue_allows_cache_hints(9)Return true if the queue allows cache and memory consistency hints.✨
vb2_queue_change_type(9)change the type of an inactive vb2_queue✨
vb2_queue_error(9)signal a fatal error on the queue✨
vb2_queue_init(9)initialize a videobuf2 queue✨
vb2_queue_init_name(9)initialize a videobuf2 queue with a name✨
vb2_queue_is_busy(9)check if the queue is busy✨
vb2_queue_release(9)stop streaming, release the queue and free memory✨
vb2_queue_remove_buffer(9)remove a buffer from a queue✨
vb2_read(9)implements read() syscall logic.✨
vb2_reqbufs(9)Wrapper for vb2_core_reqbufs() that also verifies the memory and type values.✨
vb2_request_buffer_cnt(9)return the number of buffers in the request✨