📦 linux-manual

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U (continued)

usb_get_dev(9)increments the reference count of the usb device structure✨
usb_get_dr_mode(9)Get dual role mode for given device✨
usb_get_dr_mode_from_string(9)Get dual role mode for given string✨
usb_get_from_anchor(9)get an anchor's oldest urb✨
usb_get_gadget_udc_name(9)get the name of the first UDC controller This functions returns the name of the first UDC controller in the system. Please note that this interface is usefull only for legacy drivers which assume…✨
usb_get_hub_port_acpi_handle(9)Get the usb port's acpi handle✨
usb_get_intf(9)increments the reference count of the usb interface structure✨
usb_get_maximum_speed(9)Get maximum requested speed for a given USB controller.✨
usb_get_maximum_ssp_rate(9)Get the signaling rate generation and lane count of a SuperSpeed Plus capable device.✨
usb_get_phy(9)find the USB PHY✨
usb_get_role_switch_default_mode(9)Get default mode for given device✨
usb_get_status(9)issues a GET_STATUS call✨
usb_get_string(9)gets a string descriptor✨
usb_get_urb(9)increments the reference count of the urb✨
usb_gpib_attach(9)activate the usb-gpib converter board✨
usb_gpib_detach(9)deactivate the usb-gpib converter board✨
usb_gpib_disable_eos(9)Disable END on eos byte (END on EOI only)✨
usb_gpib_enable_eos(9)Enable END for reads when eos byte is received.✨
usb_gpib_go_to_standby(9)De-assert ATN✨
usb_gpib_interface_clear(9)Assert or de-assert IFC✨
usb_gpib_line_status(9)Read the status of the bus lines.✨
usb_gstrings_attach(9)attach gadget strings to a cdev and assign ids✨
usb_hc_died(9)report abnormal shutdown of a host controller (bus glue)✨
usb_hcd_alloc_bandwidth(9)check whether a new bandwidth setting exceeds the bus bandwidth✨
usb_hcd_check_unlink_urb(9)check whether an URB may be unlinked✨
usb_hcd_giveback_urb(9)return URB from HCD to device driver✨
usb_hcd_irq(9)hook IRQs to HCD framework (bus glue)✨
usb_hcd_link_urb_to_ep(9)add an URB to its endpoint queue✨
usb_hcd_pci_probe(9)initialize PCI-based HCDs✨
usb_hcd_pci_remove(9)shutdown processing for PCI-based HCDs✨
usb_hcd_pci_shutdown(9)shutdown host controller✨
usb_hcd_reset_endpoint(9)reset host endpoint state✨
usb_hcd_resume_root_hub(9)called by HCD to resume its root hub✨
usb_hcd_unlink_urb_from_ep(9)remove an URB from its endpoint queue✨
usb_hub_clear_tt_buffer(9)clear control/bulk TT state in high speed hub✨
usb_hub_find_child(9)Get the pointer of child device attached to the port which is specified by @port1.✨
usb_hub_for_each_child(9)iterate over all child devices on the hub✨
usb_hub_set_port_power(9)control hub port's power state✨
usb_ifnum_to_if(9)get the interface object with a given interface number✨
usb_init_urb(9)initializes a urb so that it can be used by a USB driver✨
usb_initialize_gadget(9)initialize a gadget and its embedded struct device✨
usb_interface_claimed(9)returns true iff an interface is claimed✨
usb_interface_id(9)allocate an unused interface ID✨
USB_INTERFACE_INFO(9)macro used to describe a class of usb interfaces✨
usb_interrupt_msg(9)Builds an interrupt urb, sends it off and waits for completion✨
usb_intf_get_dma_device(9)acquire a reference on the usb interface's DMA endpoint✨
usb_kill_anchored_urbs(9)kill all URBs associated with an anchor✨
usb_kill_urb(9)cancel a transfer request and wait for it to finish✨
usb_lock_device_for_reset(9)cautiously acquire the lock for a usb device structure✨
usb_make_path(9)returns stable device path in the usb tree✨
usb_match_id(9)find first usb_device_id matching device or interface✨
usb_new_device(9)perform initial device setup (usbcore-internal)✨
usb_of_get_companion_dev(9)Find the companion device✨
usb_of_get_connect_type(9)get a USB hub's port connect_type✨
usb_of_get_device_node(9)get a USB device node✨
usb_of_get_interface_node(9)get a USB interface node✨
usb_of_has_combined_node(9)determine whether a device has a combined node✨
usb_offload_check(9)check offload activities on a USB device✨
usb_offload_get(9)increment the offload_usage of a USB device✨
usb_offload_put(9)drop the offload_usage of a USB device✨
usb_offload_set_pm_locked(9)set the PM lock state of a USB device✨
usb_otg_state_string(9)returns human readable name of OTG state.✨
usb_phy_get_charger_current(9)get the USB charger current✨
usb_phy_get_charger_type(9)get charger type from extcon subsystem✨
usb_phy_notify_charger_work(9)notify the USB charger state✨
usb_phy_roothub_alloc_usb3_phy(9)alloc the roothub✨
usb_phy_roothub_notify_connect(9)connect notification✨
usb_phy_roothub_notify_disconnect(9)disconnect notification✨
usb_phy_set_charger_current(9)set the USB charger current✨
usb_phy_set_charger_state(9)set the USB charger state✨
usb_phy_set_event(9)set event to phy event✨
usb_phy_write_readback(9)Write register and read back masked value to confirm it is written✨
usb_pipe_type_check(9)sanity check of a specific pipe for a usb device✨
usb_poison_anchored_urbs(9)cease all traffic from an anchor✨
usb_poison_urb(9)reliably kill a transfer and prevent further use of an URB✨
usb_power_delivery_link_device(9)Link device to its USB PD object.✨
usb_power_delivery_register(9)Register USB Power Delivery Support.✨
usb_power_delivery_register_capabilities(9)Register a set of capabilities.✨
usb_power_delivery_unlink_device(9)Unlink device from its USB PD object.✨
usb_power_delivery_unregister(9)Unregister USB Power Delivery Support.✨
usb_power_delivery_unregister_capabilities(9)Unregister a set of capabilities✨
usb_put_dev(9)release a use of the usb device structure✨
usb_put_intf(9)release a use of the usb interface structure✨
usb_put_phy(9)release the USB PHY✨
usb_queue_reset_device(9)Reset a USB device from an atomic context✨
usb_register_bus(9)registers the USB host controller with the usb core✨
usb_register_dev(9)register a USB device, and ask for a minor number✨
usb_register_device_driver(9)register a USB device (not interface) driver✨
usb_register_driver(9)register a USB interface driver✨
usb_register_notify(9)register a notifier callback whenever a usb change happens✨
usb_release_dev(9)free a usb device structure when all users of it are finished.✨
usb_remove_device(9)disable a device's port on its parent hub✨
usb_remove_hcd(9)shutdown processing for generic HCDs✨
usb_remove_phy(9)remove the OTG PHY✨
usb_reset_and_verify_device(9)perform a USB port reset to reinitialize a device✨
usb_reset_configuration(9)lightweight device reset✨
usb_reset_device(9)warn interface drivers and perform a USB port reset✨
usb_reset_endpoint(9)Reset an endpoint's state.✨
usb_resume_both(9)resume a USB device and its interfaces✨
usb_role_switch_find_by_fwnode(9)Find USB role switch with its fwnode✨
usb_role_switch_get(9)Find USB role switch linked with the caller✨
usb_role_switch_get_drvdata(9)Get the private data pointer of a switch✨
usb_role_switch_get_role(9)Get the USB role for a switch✨
usb_role_switch_put(9)Release handle to a switch✨
usb_role_switch_register(9)Register USB Role Switch✨
usb_role_switch_set_drvdata(9)Assign private data pointer to a switch✨
usb_role_switch_set_role(9)Set USB role for a switch✨
usb_role_switch_unregister(9)Unregsiter USB Role Switch✨
usb_root_hub_lost_power(9)called by HCD if the root hub lost Vbus power✨
usb_scuttle_anchored_urbs(9)unanchor all an anchor's urbs✨
usb_serial_deregister_drivers(9)deregister drivers for a usb-serial module✨
usb_serial_generic_write(9)generic write function✨
usb_serial_generic_write_start(9)start writing buffered data✨
usb_serial_handle_dcd_change(9)handle a change of carrier detect state✨
usb_set_device_state(9)change a device's current state (usbcore, hcds)✨
usb_set_interface(9)Makes a particular alternate setting be current✨
usb_set_intfdata(9)associate driver-specific data with an interface✨
usb_set_wireless_status(9)sets the wireless_status struct member✨
usb_sg_cancel(9)stop scatter/gather i/o issued by usb_sg_wait()✨
usb_sg_init(9)initializes scatterlist-based bulk/interrupt I/O request✨
usb_sg_wait(9)synchronously execute scatter/gather request✨
usb_speed_string(9)Returns human readable-name of the speed.✨
usb_ss_read_phycreg(9)Read SSPHY register.✨
usb_ss_write_phycreg(9)Write SSPHY register✨
usb_state_string(9)Returns human readable name for the state.✨
usb_stop_hcd(9)Halt the HCD✨
usb_string(9)returns UTF-8 version of a string descriptor✨
usb_string_id(9)allocate an unused string ID✨
usb_string_ids_n(9)allocate unused string IDs in batch✨
usb_string_ids_tab(9)allocate unused string IDs in batch✨
usb_submit_urb(9)issue an asynchronous transfer request for an endpoint✨
usb_suspend_both(9)suspend a USB device and its interfaces✨
usb_tx_block(9)transfer data to the device✨
usb_udc_release(9)release the usb_udc struct✨
usb_udc_vbus_handler(9)updates the udc core vbus status, and try to connect or disconnect gadget✨
usb_unanchor_urb(9)unanchors an URB✨
usb_unlink_urb(9)abort/cancel a transfer request for an endpoint✨
usb_unpoison_anchored_urbs(9)let an anchor be used successfully again✨
usb_unregister_notify(9)unregister a notifier callback✨
usb_urb_dir_in(9)check if an URB describes an IN transfer✨
usb_urb_dir_out(9)check if an URB describes an OUT transfer✨
usb_urb_ep_type_check(9)sanity check of endpoint in the given urb✨
usb_validate_langid(9)validate usb language identifiers✨
USB_VENDOR_AND_INTERFACE_INFO(9)describe a specific usb vendor with a class of usb interfaces✨
usb_wait_anchor_empty_timeout(9)wait for an anchor to be unused✨
usbc_pd_fw(9)✨
usbc_security_query(9)read current USB-C security state via USCS()✨
usbhs_omap_probe(9)initialize TI-based HCDs✨
usbhs_omap_remove(9)shutdown processing for UHH & TLL HCDs✨
usbtll_omap_probe(9)initialize TI-based HCDs✨
usbtll_omap_remove(9)shutdown processing for UHH & TLL HCDs✨
use_xgmi_p2p (int)(9)✨
usecs_to_jiffies(9)- convert microseconds to jiffies✨
Useful GFP flag combinations(9)✨
user <-> kernel object copy helpers.(9)✨
User command execution(9)✨
User memory region flags(9)✨
User Objects aka Supplicants(9)✨
user_disable_single_step(9)cancel user-mode single-step✨
user_enable_block_step(9)step until branch in user-mode task✨
user_enable_single_step(9)single-step in user-mode task✨
user_enter_callable(9)Unfortunate ASM callable version of user_enter() for archs that didn't manage to check the context tracking static key from low level code.✨
user_exit_callable(9)Unfortunate ASM callable version of user_exit() for archs that didn't manage to check the context tracking static key from low level code.✨
user_exp_rcv_clear(9)Clear the given tid rcv list✨
user_exp_rcv_invalid(9)Invalidate the given tid rcv list✨
user_exp_rcv_setup(9)Set up the given tid rcv list✨
user_queue (int)(9)✨
user_regset_active_fn(9)type of @active function in &struct user_regset✨
user_regset_set_fn(9)type of @set function in &struct user_regset✨
user_regset_writeback_fn(9)type of @writeback function in &struct user_regset✨
user_sdma_txreq_cb(9)SDMA tx request completion callback.✨
user_space_trip_crossed(9)Notify user space about trip crossing events✨
userfaultfd_ctx_get(9)Acquires a reference to the internal userfaultfd context.✨
userfaultfd_ctx_put(9)Releases a reference to the internal userfaultfd context.✨
userio_device_write(9)Write data from serio to a userio device in userspace✨
Userspace I O(9)✨
using_dma(9)return the DMA status of the driver.✨
usleep_range(9)Sleep for an approximate time✨
usleep_range_idle(9)Sleep for an approximate time with idle time accounting✨
usleep_range_state(9)Sleep for an approximate time in a given state✨
utf16_le_to_7bit(9)Naively converts a UTF-16LE string to 7-bit ASCII characters✨
utf8_parse_version(9)Parse a UTF-8 version number from a string✨
Utility functions(9)✨
uuid_is_valid(9)checks if a UUID string is valid✨
uuid_v5(9)Calculate UUIDv5✨
uv_find_secret(9)search secret metadata for a given secret id.✨
uv_list_secrets(9)Do a List Secrets UVC.✨
uv_mmtimer_init(9)device initialization routine✨
uv_mmtimer_ioctl(9)ioctl interface for /dev/uv_mmtimer✨
uv_mmtimer_mmap(9)maps the clock's registers into userspace✨
uv_retrieve_secret(9)get the secret value for the secret index.✨
uvd_v1_0_fence_emit(9)emit an fence & trap command✨
uvd_v1_0_fini(9)stop the hardware block✨
uvd_v1_0_get_rptr(9)get read pointer✨
uvd_v1_0_get_wptr(9)get write pointer✨
uvd_v1_0_ib_execute(9)execute indirect buffer✨
uvd_v1_0_ib_test(9)test ib execution✨
uvd_v1_0_init(9)start and test UVD block✨
uvd_v1_0_resume(9)memory controller programming✨
uvd_v1_0_ring_test(9)register write test✨