9 Kernel routines

8,468 pages in section 9.

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ua

uart_add_one_port attach a driver-defined port structure
uart_get_baud_rate return baud rate for a particular port
uart_get_divisor return uart clock divisor
uart_handle_cts_change handle a change of clear-to-send state
uart_handle_dcd_change handle a change of carrier detect state
uart_insert_char push a char to the uart layer
uart_parse_options Parse serial port baud/parity/bits/flow control.
uart_register_driver register a driver with the uart core layer
uart_remove_one_port detach a driver defined port structure
uart_set_options setup the serial console parameters
uart_unregister_driver remove a driver from the uart core layer
uart_update_timeout update per-port FIFO timeout.

uc

ucred functions related to user credentials

ui

uidinfo functions for managing UID information
uifind functions for managing UID information
uifree functions for managing UID information
uihashinit functions for managing UID information
uihold functions for managing UID information
uio device driver I/O routines
uio_event_notify trigger an interrupt event
uio_unregister_device unregister a industrial IO device
uiomove device driver I/O routines
uiomove_frombuf device driver I/O routines
uiomove_fromphys device driver I/O routines
uiomove_nofault device driver I/O routines

um

uma zone allocator
uma_prealloc general-purpose kernel object allocator
uma_reclaim general-purpose kernel object allocator
uma_zalloc zone allocator
uma_zalloc_arg general-purpose kernel object allocator
uma_zalloc_domain general-purpose kernel object allocator
uma_zalloc_pcpu general-purpose kernel object allocator
uma_zalloc_pcpu_arg general-purpose kernel object allocator
uma_zcache_create general-purpose kernel object allocator
uma_zcreate zone allocator
uma_zdestroy zone allocator
uma_zfree zone allocator
uma_zfree_arg general-purpose kernel object allocator
uma_zfree_pcpu general-purpose kernel object allocator
uma_zfree_pcpu_arg general-purpose kernel object allocator
uma_zone_get_cur general-purpose kernel object allocator
uma_zone_get_max general-purpose kernel object allocator
uma_zone_reclaim general-purpose kernel object allocator
uma_zone_reserve general-purpose kernel object allocator
uma_zone_reserve_kva general-purpose kernel object allocator
uma_zone_set_allocf general-purpose kernel object allocator
uma_zone_set_freef general-purpose kernel object allocator
uma_zone_set_max zone allocator
uma_zone_set_maxaction general-purpose kernel object allocator
uma_zone_set_maxcache general-purpose kernel object allocator
uma_zone_set_warning general-purpose kernel object allocator
uma_zsecond_create general-purpose kernel object allocator
umajor calculate device ids
uminor calculate device ids

un

union_hdmi_infoframe overall union of all abstract infoframe representations
unlock_new_inode clear the I_NEW state and wake up any waiters
unlock_page unlock a locked page
unlock_sock_fast complement of lock_sock_fast
unlock_two_nondirectories release locks from lock_two_nondirectories
unmap_kernel_range unmap kernel VM area and flush cache and TLB
unmap_kernel_range_noflush unmap kernel VM area
unmap_mapping_range unmap the portion of all mmaps in the specified address_space corresponding to the specified page range in the underlying file.
unqueue_me Remove the futex_q from its futex_hash_bucket
unr kernel unit number allocator
unregister_adapter_interrupt unregister adapter interrupt handler
unregister_chrdev_region unregister a range of device numbers
unregister_filesystem unregister a file system
unregister_framebuffer releases a frame buffer device
unregister_netdev remove device from the kernel
unregister_netdevice remove device from the kernel
unregister_netdevice_many unregister many devices
unregister_netdevice_notifier unregister a network notifier block
unregister_netdevice_queue remove device from the kernel
unregister_node unregister a node device
unregister_reboot_notifier Unregister previously registered reboot notifier
unregister_security unregisters a security framework with the kernel
unregister_sound_dsp unregister a DSP device
unregister_sound_midi unregister a midi device
unregister_sound_mixer unregister a mixer
unregister_sound_special unregister a special sound device
unregister_sound_synth unregister a synth device
unregister_syscore_ops Unregister a set of system core operations.
unregister_sysctl_table unregister a sysctl table hierarchy
unsetenv kernel environment variable functions
untimeout execute a function after a specified length of time

up

update_sd_lb_stats Update sched_domain's statistics for load balancing.
update_sd_pick_busiest return 1 on busiest group
update_sg_lb_stats Update sched_group's statistics for load balancing.
updatepri perform round-robin scheduling of runnable processes
updown Counts up or down, with optional limits and wraparound behavior
upper_32_bits return bits 32-63 of a number
uprintf formatted output conversion

us

usb
usb_add_config add a configuration to a device.
usb_add_function add a function to a configuration
usb_add_hcd finish generic HCD structure initialization and register
usb_alloc_coherent allocate dma-consistent buffer for URB_NO_xxx_DMA_MAP
usb_alloc_dev usb device constructor (usbcore-internal)
usb_alloc_streams allocate bulk endpoint stream IDs.
usb_alloc_urb creates a new urb for a USB driver to use
usb_altnum_to_altsetting get the altsetting structure with a given alternate setting number.
usb_anchor_empty is an anchor empty
usb_anchor_resume_wakeups
usb_anchor_suspend_wakeups
usb_anchor_urb anchors an URB while it is processed
usb_autopm_get_interface increment a USB interface's PM-usage counter
usb_autopm_get_interface_async increment a USB interface's PM-usage counter
usb_autopm_get_interface_no_resume increment a USB interface's PM-usage counter
usb_autopm_put_interface decrement a USB interface's PM-usage counter
usb_autopm_put_interface_async decrement a USB interface's PM-usage counter
usb_autopm_put_interface_no_suspend decrement a USB interface's PM-usage counter
usb_autopm_set_interface set a USB interface's autosuspend state
usb_block_urb reliably prevent further use of an URB
usb_buffer_alloc allocate dma-consistent buffer for URB_NO_xxx_DMA_MAP
usb_buffer_dmasync synchronize DMA and CPU view of buffer(s)
usb_buffer_dmasync_sg synchronize DMA and CPU view of scatterlist buffer(s)
usb_buffer_free free memory allocated with usb_buffer_alloc
usb_buffer_map create DMA mapping(s) for an urb
usb_buffer_map_sg create scatterlist DMA mapping(s) for an endpoint
usb_buffer_unmap free DMA mapping(s) for an urb
usb_buffer_unmap_sg free DMA mapping(s) for a scatterlist
usb_bulk_msg Builds a bulk urb, sends it off and waits for completion
usb_bus_start_enum start immediate enumeration (for OTG)
usb_calc_bus_time approximate periodic transaction time in nanoseconds
usb_claim_bandwidth records bandwidth for a periodic transfer
usb_clear_halt tells device to clear endpoint halt/stall condition
usb_composite_probe register a composite driver
usb_composite_register register a composite driver
usb_composite_setup_continue Continue with the control transfer
usb_composite_unregister unregister a composite driver
usb_control_msg Builds a control urb, sends it off and waits for completion
usb_copy_descriptors copy a vector of USB descriptors
usb_create_hcd create and initialize an HCD structure
usb_create_shared_hcd create and initialize an HCD structure
usb_deregister unregister a USB interface driver
usb_deregister_dev deregister a USB device's dynamic minor.
usb_deregister_device_driver unregister a USB device (not interface) driver
usb_descriptor_fillbuf fill buffer with descriptors
USB_DEVICE macro used to describe a specific usb device
USB_DEVICE_AND_INTERFACE_INFO describe a specific usb device with a class of usb interfaces
USB_DEVICE_INFO macro used to describe a class of usb devices
USB_DEVICE_INTERFACE_CLASS describe a usb device with a specific interface class
USB_DEVICE_INTERFACE_NUMBER describe a usb device with a specific interface number
USB_DEVICE_INTERFACE_PROTOCOL describe a usb device with a specific interface protocol
USB_DEVICE_VER describe a specific usb device with a version range
usb_disable_autosuspend prevent a USB device from being autosuspended
usb_driver_claim_interface bind a driver to an interface
usb_driver_release_interface unbind a driver from an interface
usb_driver_set_configuration Provide a way for drivers to change device configurations
usb_enable_autosuspend allow a USB device to be autosuspended
usb_endpoint_dir_in check if the endpoint has IN direction
usb_endpoint_dir_out check if the endpoint has OUT direction
usb_endpoint_is_bulk_in check if the endpoint is bulk IN
usb_endpoint_is_bulk_out check if the endpoint is bulk OUT
usb_endpoint_is_int_in check if the endpoint is interrupt IN
usb_endpoint_is_int_out check if the endpoint is interrupt OUT
usb_endpoint_is_isoc_in check if the endpoint is isochronous IN
usb_endpoint_is_isoc_out check if the endpoint is isochronous OUT
usb_endpoint_maxp get endpoint's max packet size
usb_endpoint_num get the endpoint's number
usb_endpoint_type get the endpoint's transfer type
usb_endpoint_xfer_bulk check if the endpoint has bulk transfer type
usb_endpoint_xfer_control check if the endpoint has control transfer type
usb_endpoint_xfer_int check if the endpoint has interrupt transfer type
usb_endpoint_xfer_isoc check if the endpoint has isochronous transfer type
usb_ep_align returns len aligned to ep's maxpacketsize.
usb_ep_align_maybe returns len aligned to ep's maxpacketsize if gadget requires quirk_ep_out_aligned_size, otherwise returns len.
usb_ep_alloc_buffer allocate an I/O buffer
usb_ep_alloc_request allocate a request object to use with this endpoint
usb_ep_clear_halt clears endpoint halt, and resets toggle
usb_ep_dequeue dequeues (cancels, unlinks) an I/O request from an endpoint
usb_ep_disable endpoint is no longer usable
usb_ep_enable configure endpoint, making it usable
usb_ep_fifo_flush flushes contents of a fifo
usb_ep_fifo_status returns number of bytes in fifo, or error
usb_ep_free_buffer frees an i/o buffer
usb_ep_free_request frees a request object
usb_ep_queue queues (submits) an I/O request to an endpoint.
usb_ep_set_halt sets the endpoint halt feature.
usb_ep_set_maxpacket_limit set maximum packet size limit for endpoint
usb_ep_set_wedge sets the halt feature and ignores clear requests
usb_fifo_alloc_buffer Universal Serial Bus driver programming interface
usb_fifo_attach Universal Serial Bus driver programming interface
usb_fifo_detach Universal Serial Bus driver programming interface
usb_fifo_free_buffer Universal Serial Bus driver programming interface
usb_fifo_get_data Universal Serial Bus driver programming interface
usb_fifo_get_data_buffer Universal Serial Bus driver programming interface
usb_fifo_get_data_error Universal Serial Bus driver programming interface
usb_fifo_get_data_linear Universal Serial Bus driver programming interface
usb_fifo_put_bytes_max Universal Serial Bus driver programming interface
usb_fifo_put_data Universal Serial Bus driver programming interface
usb_fifo_put_data_buffer Universal Serial Bus driver programming interface
usb_fifo_put_data_error Universal Serial Bus driver programming interface
usb_fifo_put_data_linear Universal Serial Bus driver programming interface
usb_fifo_reset Universal Serial Bus driver programming interface
usb_fifo_softc Universal Serial Bus driver programming interface
usb_fifo_wakeup Universal Serial Bus driver programming interface
usb_fill_bulk_urb macro to help initialize a bulk urb
usb_fill_control_urb initializes a control urb
usb_fill_int_urb macro to help initialize a interrupt urb
usb_find_alt_setting Given a configuration, find the alternate setting for the given interface.
usb_find_device find a specific usb device in the system
usb_find_endpoint find a copy of an endpoint descriptor
usb_find_interface find usb_interface pointer for driver and device
usb_for_each_dev iterate over all USB devices in the system
usb_free_coherent free memory allocated with usb_alloc_coherent
usb_free_descriptors free descriptors returned by usb_copy_descriptors
usb_free_streams free bulk endpoint stream IDs.
usb_free_urb frees the memory used by a urb when all users of it are finished
usb_function_activate allow function and gadget enumeration
usb_function_deactivate prevent function and gadget enumeration
usb_gadget_clear_selfpowered clear the device selfpowered feature.
usb_gadget_config_buf builts a complete configuration descriptor
usb_gadget_connect software-controlled connect to USB host
usb_gadget_disconnect software-controlled disconnect from USB host
usb_gadget_frame_number returns the current frame number
usb_gadget_get_string fill out a string descriptor
usb_gadget_probe_driver probe a gadget driver
usb_gadget_register_driver register a gadget driver
usb_gadget_set_selfpowered sets the device selfpowered feature.
usb_gadget_unregister_driver unregister a gadget driver
usb_gadget_vbus_connect Notify controller that VBUS is powered
usb_gadget_vbus_disconnect notify controller about VBUS session end
usb_gadget_vbus_draw constrain controller's VBUS power usage
usb_gadget_wakeup tries to wake up the host connected to this gadget
usb_get_current_frame_number return current bus frame number
usb_get_descriptor issues a generic GET_DESCRIPTOR request
usb_get_dev increments the reference count of the usb device structure
usb_get_from_anchor get an anchor's oldest urb
usb_get_intf increments the reference count of the usb interface structure
usb_get_maximum_speed Get maximum requested speed for a given USB controller.
usb_get_status issues a GET_STATUS call
usb_get_urb increments the reference count of the urb
usb_gstrings_attach attach gadget strings to a cdev and assign ids
usb_hc_died report abnormal shutdown of a host controller (bus glue)
usb_hcd_check_unlink_urb check whether an URB may be unlinked
usb_hcd_giveback_urb return URB from HCD to device driver
usb_hcd_irq hook IRQs to HCD framework (bus glue)
usb_hcd_link_urb_to_ep add an URB to its endpoint queue
usb_hcd_pci_probe initialize PCI-based HCDs
usb_hcd_pci_remove shutdown processing for PCI-based HCDs
usb_hcd_pci_resume power management resume of a PCI-based HCD
usb_hcd_pci_shutdown shutdown host controller
usb_hcd_pci_suspend power management suspend of a PCI-based HCD
usb_hcd_resume_root_hub called by HCD to resume its root hub
usb_hcd_unlink_urb_from_ep remove an URB from its endpoint queue
usb_hub_clear_tt_buffer clear control/bulk TT state in high speed hub
usb_hub_find_child Get the pointer of child device attached to the port which is specified by port1.
usb_hub_for_each_child iterate over all child devices on the hub
usb_hub_tt_clear_buffer clear control/bulk TT state in high speed hub
usb_ifnum_to_if get the interface object with a given interface number
usb_init_urb initializes a urb so that it can be used by a USB driver
usb_interface_claimed returns true iff an interface is claimed
usb_interface_id allocate an unused interface ID
USB_INTERFACE_INFO macro used to describe a class of usb interfaces
usb_interrupt_msg Builds an interrupt urb, sends it off and waits for completion
usb_kill_anchored_urbs cancel transfer requests en masse
usb_kill_urb cancel a transfer request and wait for it to finish
usb_lock_device_for_reset cautiously acquire the lock for a usb device structure
usb_make_path returns stable device path in the usb tree
usb_match_id find first usb_device_id matching device or interface
usb_poison_anchored_urbs cease all traffic from an anchor
usb_poison_urb reliably kill a transfer and prevent further use of an URB
usb_put_dev release a use of the usb device structure
usb_put_intf release a use of the usb interface structure
usb_queue_reset_device Reset a USB device from an atomic context
usb_register_dev register a USB device, and ask for a minor number
usb_register_device_driver register a USB device (not interface) driver
usb_register_driver register a USB interface driver
usb_release_bandwidth reverses effect of usb_claim_bandwidth
usb_remove_hcd shutdown processing for generic HCDs
usb_reset_composite_device warn interface drivers and perform a USB port reset
usb_reset_configuration lightweight device reset
usb_reset_device warn interface drivers and perform a USB port reset
usb_reset_endpoint Reset an endpoint's state.
usb_root_hub_lost_power called by HCD if the root hub lost Vbus power
usb_scuttle_anchored_urbs unanchor all an anchor's urbs
usb_set_device_state change a device's current state (usbcore, hcds)
usb_set_interface Makes a particular alternate setting be current
usb_sg_cancel stop scatter/gather i/o issued by usb_sg_wait
usb_sg_init initializes scatterlist-based bulk/interrupt I/O request
usb_sg_wait synchronously execute scatter/gather request
usb_speed_string Returns human readable-name of the speed.
usb_state_string Returns human readable name for the state.
usb_string returns UTF-8 version of a string descriptor
usb_string_id allocate an unused string ID
usb_string_ids_n allocate unused string IDs in batch
usb_string_ids_tab allocate unused string IDs in batch
usb_submit_urb issue an asynchronous transfer request for an endpoint
usb_unanchor_urb unanchors an URB
usb_unlink_anchored_urbs asynchronously cancel transfer requests en masse
usb_unlink_urb abort/cancel a transfer request for an endpoint
usb_unpoison_anchored_urbs let an anchor be used successfully again
usb_urb_dir_in check if an URB describes an IN transfer
usb_urb_dir_out check if an URB describes an OUT transfer
USB_VENDOR_AND_INTERFACE_INFO describe a specific usb vendor with a class of usb interfaces
usb_wait_anchor_empty_timeout wait for an anchor to be unused
usbd_do_request Universal Serial Bus driver programming interface
usbd_do_request_flags Universal Serial Bus driver programming interface
usbd_errstr Universal Serial Bus driver programming interface
usbd_lookup_id_by_info Universal Serial Bus driver programming interface
usbd_lookup_id_by_uaa Universal Serial Bus driver programming interface
usbd_transfer_clear_stall Universal Serial Bus driver programming interface
usbd_transfer_drain Universal Serial Bus driver programming interface
usbd_transfer_pending Universal Serial Bus driver programming interface
usbd_transfer_poll Universal Serial Bus driver programming interface
usbd_transfer_setup Universal Serial Bus driver programming interface
usbd_transfer_start Universal Serial Bus driver programming interface
usbd_transfer_stop Universal Serial Bus driver programming interface
usbd_transfer_submit Universal Serial Bus driver programming interface
usbd_transfer_unsetup Universal Serial Bus driver programming interface
usbd_xfer_clr_flag Universal Serial Bus driver programming interface
usbd_xfer_frame_data Universal Serial Bus driver programming interface
usbd_xfer_frame_len Universal Serial Bus driver programming interface
usbd_xfer_get_frame Universal Serial Bus driver programming interface
usbd_xfer_get_priv Universal Serial Bus driver programming interface
usbd_xfer_is_stalled Universal Serial Bus driver programming interface
usbd_xfer_max_framelen Universal Serial Bus driver programming interface
usbd_xfer_max_frames Universal Serial Bus driver programming interface
usbd_xfer_max_len Universal Serial Bus driver programming interface
usbd_xfer_set_flag Universal Serial Bus driver programming interface
usbd_xfer_set_frame_data Universal Serial Bus driver programming interface
usbd_xfer_set_frame_len Universal Serial Bus driver programming interface
usbd_xfer_set_frame_offset Universal Serial Bus driver programming interface
usbd_xfer_set_frames Universal Serial Bus driver programming interface
usbd_xfer_set_interval Universal Serial Bus driver programming interface
usbd_xfer_set_priv Universal Serial Bus driver programming interface
usbd_xfer_set_stall Universal Serial Bus driver programming interface
usbd_xfer_set_timeout Universal Serial Bus driver programming interface
usbd_xfer_softc Universal Serial Bus driver programming interface
usbd_xfer_state Universal Serial Bus driver programming interface
usbd_xfer_status Universal Serial Bus driver programming interface
usbdi Universal Serial Bus driver programming interface
useracc check memory regions for accessibility
userkins Template for user-built kinematics
usermodehelper_is_disabled check if new helpers are allowed to be started
usleep_range Drop in replacement for udelay where wakeup is flexible
ustosbt Q32.32 fixed point representation of time

ut

utopia driver module for ATM PHY chips

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