__bread_gfp (9)      - reads a specified block and returns the bh
__get_pfnblock_flags_mask (9) - Return the requested group of flags for the p...
__test_and_clear_bit (9) - Clear a bit and return its old value
__test_and_set_bit (9) - Set a bit and return its old value
abs (9)              - return absolute value of an argument
absent_pages_in_range (9) - Return number of page frames in holes within a range
aio_return (3)       - get return status of asynchronous I/O operation
ata_cable_40wire (9) - return 40 wire cable type
ata_cable_80wire (9) - return 80 wire cable type
ata_cable_ignore (9) - return ignored PATA cable.
ata_cable_sata (9)   - return SATA cable type
ata_cable_unknown (9) - return unknown PATA cable.
ata_dev_pair (9)     - return other device on cable
ata_pio_mask_no_iordy (9) - Return the non IORDY mask
ata_sas_async_probe (9) - simply schedule probing and return
ata_scsiop_noop (9)  - Command handler that simply returns success.
atomic_add_return (9) - add integer and return
atomic_dec_and_mutex_lock (9) - return holding mutex if we dec to 0
atomic_sub_return (9) - subtract integer and return
audit_compare_dname_path (9) - compare given dentry name with last component ...
BIO_set_mem_eof_return (3ssl) - memory BIO
canonicalize_file_name (3) - return the canonicalized absolute pathname
ccw_device_get_chp_desc (9) - return newly allocated channel-path descriptor
clamp (9)            - return a value clamped to a given range with strict ty...
clamp_t (9)          - return a value clamped to a given range using a given ...
clamp_val (9)        - return a value clamped to a given range using val's type
clk_get_phase (9)    - return the phase shift of a clock signal
Contextual::Return (3pm) - Create context-sensitive return values
Contextual::Return::Failure (3pm) - Utility module for Contextual::Return
crypto_blkcipher_name (9) - return the name / cra_name from the cipher handle
d_path (9)           - return the path of a dentry
d_real (9)           - Return the real dentry
d_real_inode (9)     - Return the real inode
DBI::Const::GetInfoReturn (3pm) - Data and functions for describing GetInfo r...
DBI::Gofer::Execute (3pm) - Executes Gofer requests and returns Gofer responses
dblink_fetch (3)     - returns rows from an open cursor in a remote database
dblink_get_connections (3) - returns the names of all open named dblink conne...
dblink_get_pkey (3)  - returns the positions and field names of a relation's ...
debugfs_create_regset32 (9) - create a debugfs file that returns register values
dev_driver_string (9) - Return a device's driver name, if at all possible
Devel::GlobalDestruction (3pm) - Provides function returning the equivalent o...
disk_clear_events (9) - synchronously check, clear and return pending events
disk_part_iter_next (9) - proceed iterator to the next partition and return it
dma_buf_fd (9)       - returns a file descriptor for the given dma_buf
dma_buf_get (9)      - returns the dma_buf structure related to an fd
dma_buf_map_attachment (9) - Returns the scatterlist table of the attachment;...
dmi_get_system_info (9) - return DMI data value
dpkg-buildflags (1)  - returns build flags to use during package build
enum_positive_aop_returns (9) - aop return codes with specific semantics
fence_is_later (9)   - return if f1 is chronologically later than f2
fence_is_signaled (9) - Return an indication if the fence is signaled yet.
fence_is_signaled_locked (9) - Return an indication if the fence is signaled ...
fence_later (9)      - return the chronologically later fence
File::Temp (3perl)   - return name and handle of a temporary file safely
find_busiest_group (9) - Returns the busiest group within the sched_domain if...
find_get_entries_tag (9) - find and return entries that match tag
find_get_pages_tag (9) - find and return pages that match tag
fsck.nfs (8)         - Dummy fsck.nfs script that always returns success.
ftime (3)            - return date and time
futex_top_waiter (9) - Return the highest priority waiter on a futex
gadget_is_altset_supported (9) - return true iff the hardware supports altset...
gadget_is_dualspeed (9) - return true iff the hardware handles high speed
gadget_is_otg (9)    - return true iff the hardware is OTG-ready
gadget_is_stall_supported (9) - return true iff the hardware supports stalling
gadget_is_superspeed (9) - return true if the hardware handles superspeed
gadget_is_superspeed_plus (9) - return true if the hardware handles superspee...
gadget_is_zlp_supported (9) - return true iff the hardware supports zlp
genphy_aneg_done (9) - return auto-negotiation status
get_pfn_range_for_nid (9) - Return the start and end page frames for a node
get_phy_device (9)   - reads the specified PHY device and returns its phy_dev...
i2c_new_dummy (9)    - return a new i2c device bound to a dummy driver
i2c_verify_adapter (9) - return parameter as i2c_adapter or NULL
i2c_verify_client (9) - return parameter as i2c_client, or NULL
input_mt_get_slot_by_key (9) - return slot matching key
irq_get_irqchip_state (9) - returns the irqchip state of a interrupt.
iruserok (3)         - routines for returning a stream to a remote command
iruserok_af (3)      - routines for returning a stream to a remote command
jbd2_journal_errno (9) - returns the journal's error state.
kfifo_avail (9)      - returns the number of unused elements in the fifo
kfifo_esize (9)      - returns the size of the element managed by the fifo
kfifo_is_empty (9)   - returns true if the fifo is empty
kfifo_is_full (9)    - returns true if the fifo is full
kfifo_len (9)        - returns the number of used elements in the fifo
kfifo_recsize (9)    - returns the size of the record length field
kfifo_size (9)       - returns the size of the fifo in elements
kobject_get_path (9) - generate and return the path associated with a given k...
kthread_freezable_should_stop (9) - should this freezable kthread return now?
kthread_should_stop (9) - should this kthread return now?
lookup_dcookie (2)   - return a directory entry's path
lower_32_bits (9)    - return bits 0-31 of a number
lwp-dump (1p)        - See what headers and content is returned for a URL
Mason::CodeCache (3pm) - Result returned from Mason request
Mason::Result (3pm)  - Result returned from Mason request
mempool_free (9)     - return an element to the pool.
min_not_zero (9)     - return the minimum that is _not_ zero, unless both are...
mpt_fc_log_info (9)  - Log information returned from Fibre Channel IOC.
mpt_get_product_name (9) - returns product string
mpt_iocstatus_info (9) - IOCSTATUS information returned from IOC.
mpt_raid_phys_disk_get_num_paths (9) - returns number paths associated to thi...
mpt_raid_phys_disk_pg0 (9) - returns phys disk page zero
mpt_raid_phys_disk_pg1 (9) - returns phys disk page 1
mpt_sas_log_info (9) - Log information returned from SAS IOC.
mpt_spi_log_info (9) - Log information returned from SCSI Parallel IOC.
mptscsih_info (9)    - Return information about MPT adapter
nan (3)              - return 'Not a Number'
nanf (3)             - return 'Not a Number'
nanl (3)             - return 'Not a Number'
Net::DBus::Binding::Message::MethodRe... (3pm) - a message encoding a method ...
pam_strerror (3)     - return string describing PAM error code
pci_bus_max_busnr (9) - returns maximum PCI bus number of given bus' children
pci_dev_present (9)  - Returns 1 if device matching the device list is presen...
pci_find_parent_resource (9) - return resource region of parent bus of given ...
pci_find_pcie_root_port (9) - return PCIe Root Port
pci_irq_vector (9)   - return Linux IRQ number of a device vector
pci_msi_vec_count (9) - Return the number of MSI vectors a device can send
pci_msix_vec_count (9) - return the number of device's MSI-X table entries
pci_num_vf (9)       - return number of VFs associated with a PF device_relea...
pci_store_saved_state (9) - Allocate and return an opaque struct containing t...
pci_vfs_assigned (9) - returns number of VFs are assigned to a guest
pcre-config (1)      - program to return PCRE configuration
phy_aneg_done (9)    - return auto-negotiation status
priv_to_wiphy (9)    - return the wiphy containing the priv
proc_print_scsidevice (9) - return data about this host
rcmd (3)             - routines for returning a stream to a remote command
rcmd_af (3)          - routines for returning a stream to a remote command
readfile (3am)       - return the entire contents of a file as a string
realpath (3)         - return the canonicalized absolute pathname
Regexp::Common::URI::fax (3pm) - - Returns a pattern for fax URIs.
Regexp::Common::URI::file (3pm) - - Returns a pattern for file URIs.
Regexp::Common::URI::ftp (3pm) - - Returns a pattern for FTP URIs.
Regexp::Common::URI::gopher (3pm) - - Returns a pattern for gopher URIs.
Regexp::Common::URI::http (3pm) - - Returns a pattern for HTTP URIs.
Regexp::Common::URI::news (3pm) - - Returns a pattern for file URIs.
Regexp::Common::URI::pop (3pm) - - Returns a pattern for POP URIs.
Regexp::Common::URI::prospero (3pm) - - Returns a pattern for prospero URIs.
Regexp::Common::URI::tel (3pm) - - Returns a pattern for telephone URIs.
Regexp::Common::URI::telnet (3pm) - - Returns a pattern for telnet URIs.
Regexp::Common::URI::tv (3pm) - - Returns a pattern for tv URIs.
Regexp::Common::URI::wais (3pm) - - Returns a pattern for WAIS URIs.
regulator_get_linear_step (9) - return the voltage step size between VSEL values
relay_file_read_end_pos (9) - return the new read position
relay_file_read_subbuf_avail (9) - return bytes available in sub-buffer
rexec (3)            - return stream to a remote command
rexec_af (3)         - return stream to a remote command
rio_destid_first (9) - return first destID in use
rio_destid_next (9)  - return next destID in use
rio_get_input_status (9) - Sends a Link-Request/Input-Status control symbol a...
rio_mport_get_physefb (9) - Helper function that returns register offset for ...
rpc_peeraddr2str (9) - return remote peer address in printable format
rrdfirst (1)         - Return the date of the first data sample in an RRA wit...
rrdlast (1)          - Return the date of the last data sample in an RRD
rrdlastupdate (1)    - Return the most recent update to an RRD
rresvport (3)        - routines for returning a stream to a remote command
rresvport_af (3)     - routines for returning a stream to a remote command
rt_sigreturn (2)     - return from signal handler and cleanup stack frame
ruserok (3)          - routines for returning a stream to a remote command
ruserok_af (3)       - routines for returning a stream to a remote command
sas_get_address (9)  - return the SAS address of the device
scsi_vpd_lun_id (9)  - return a unique device identification
selinux_binary_policy_path (3) - These functions return the paths to the acti...
selinux_booleans_path (3) - These functions return the paths to the active SE...
selinux_colors_path (3) - Return a path to the active SELinux policy color co...
selinux_contexts_path (3) - These functions return the paths to the active SE...
selinux_current_policy_path (3) - These functions return the paths to the act...
selinux_default_context_path (3) - These functions return the paths to the ac...
selinux_default_type_path (3) - These functions return the paths to the activ...
selinux_failsafe_context_path (3) - These functions return the paths to the a...
selinux_file_context_homedir_path (3) - These functions return the paths to t...
selinux_file_context_local_path (3) - These functions return the paths to the...
selinux_file_context_path (3) - These functions return the paths to the activ...
selinux_homedir_context_path (3) - These functions return the paths to the ac...
selinux_media_context_path (3) - These functions return the paths to the acti...
selinux_netfilter_context_path (3) - These functions return the paths to the ...
selinux_path (3)     - These functions return the paths to the active SELinux...
selinux_policy_root (3) - return the path of the SELinux policy files for thi...
selinux_raw_context_to_color (3) - Return RGB color string for an SELinux sec...
selinux_removable_context_path (3) - These functions return the paths to the ...
selinux_securetty_types_path (3) - These functions return the paths to the ac...
selinux_set_policy_root (3) - return the path of the SELinux policy files for...
selinux_user_contexts_path (3) - These functions return the paths to the acti...
selinux_usersconf_path (3) - These functions return the paths to the active S...
selinux_x_context_path (3) - These functions return the paths to the active S...
sigreturn (2)        - return from signal handler and cleanup stack frame
sk_page_frag (9)     - return an appropriate page_frag
sk_rmem_alloc_get (9) - returns read allocations
sk_wmem_alloc_get (9) - returns write allocations
skb_dst (9)          - returns skb dst_entry
skb_gso_network_seglen (9) - Return length of individual segments of a gso pa...
skb_gso_transport_seglen (9) - Return length of individual segments of a gso ...
skb_gso_validate_mtu (9) - Return in case such skb fits a given MTU
skb_queue_next (9)   - return the next packet in the queue
skb_queue_prev (9)   - return the prev packet in the queue
slapo-retcode (5)    - return code overlay to slapd
snd_dma_pointer (9)  - return the current pointer to DMA transfer buffer in b...
snd_pcm_format_name (9) - Return a name string for the given PCM format
snd_pcm_format_physical_width (9) - return the physical bit-width of the format
snd_pcm_format_silence_64 (9) - return the silent data in 8 bytes array
snd_pcm_format_size (9) - return the byte size of samples on the given format
snd_pcm_format_width (9) - return the bit-width of the format
snd_pcm_hw_param_first (9) - refine config space and return minimum value
snd_pcm_hw_param_last (9) - refine config space and return maximum value
snd_pcm_hw_param_value (9) - return params field var value
snd_soc_codec_get_dapm (9) - Returns the DAPM context for the CODEC
snd_soc_component_get_dapm (9) - Returns the DAPM context associated with a c...
snd_soc_dapm_kcontrol_codec (9) - Returns the codec associated to a kcontrol
snd_soc_dapm_kcontrol_dapm (9) - Returns the dapm context associated to a kco...
snd_soc_dapm_kcontrol_widget (9) - Returns the widget associated to a kcontrol
snd_soc_jack_get_type (9) - Based on the mic bias value, this function return...
snd_soc_kcontrol_codec (9) - Returns the CODEC that registered the control
snd_soc_kcontrol_component (9) - Returns the component that registered the co...
snd_soc_kcontrol_platform (9) - Returns the platform that registered the control
SPI_getargcount (3)  - return the number of arguments needed by a statement p...
SPI_getargtypeid (3) - return the data type OID for an argument of a statemen...
SPI_getbinval (3)    - return the binary value of the specified column
SPI_getnspname (3)   - return the namespace of the specified relation
SPI_getrelname (3)   - return the name of the specified relation
SPI_gettype (3)      - return the data type name of the specified column
SPI_gettypeid (3)    - return the data type OID of the specified column
SPI_getvalue (3)     - return the string value of the specified column
SPI_is_cursor_plan (3) - return true if a statement prepared by SPI_prepare c...
SPI_result_code_string (3) - return error code as string
SPI_returntuple (3)  - prepare to return a tuple as a Datum
srcu_batches_completed (9) - return batches completed.
stpcpy (3)           - copy a string returning a pointer to its end
stpncpy (3)          - copy a fixed-size string, returning a pointer to its end
strchrnul (9)        - Find and return a character in a string, or end of string
strerror (3)         - return string describing error number
strerror_r (3)       - return string describing error number
strsignal (3)        - return string describing signal
sysfs_streq (9)      - return true if strings are equal, modulo trailing newline
sysinfo (2)          - returns information on overall system statistics
task_nice (9)        - return the nice value of a given task.
telldir (3)          - return current location in directory stream
test_and_change_bit (9) - Change a bit and return its old value
test_and_clear_bit (9) - Clear a bit and return its old value
test_and_set_bit (9) - Set a bit and return its old value
test_and_set_bit_lock (9) - Set a bit and return its old value for lock
trace_irq_handler_exit (9) - called immediately after the irq action handler ...
trace_softirq_exit (9) - called immediately after the softirq handler returns
ttyname (3)          - return name of a terminal
ttyname_r (3)        - return name of a terminal
uart_get_baud_rate (9) - return baud rate for a particular port
uart_get_divisor (9) - return uart clock divisor
update_sd_pick_busiest (9) - return 1 on busiest group
upper_32_bits (9)    - return bits 32-63 of a number
usb_ep_align_maybe (9) - returns len aligned to ep's maxpacketsize if gadget ...
usb_free_descriptors (9) - free descriptors returned by usb_copy_descriptors
usb_get_current_frame_number (9) - return current bus frame number
usb_hcd_giveback_urb (9) - return URB from HCD to device driver
usb_interface_claimed (9) - returns true iff an interface is claimed
usb_make_path (9)    - returns stable device path in the usb tree
usb_speed_string (9) - Returns human readable-name of the speed.
usb_state_string (9) - Returns human readable name for the state.
usb_string (9)       - returns UTF-8 version of a string descriptor
wcpcpy (3)           - copy a wide-character string, returning a pointer to i...
wcpncpy (3)          - copy a fixed-size string of wide characters, returning...
wdev_priv (9)        - return wiphy priv from wireless_dev
wimax_msg_data (9)   - Return a pointer to a message's payload
wimax_msg_data_len (9) - Return a pointer and size of a message's payload
wimax_msg_len (9)    - Return a message's payload length
wimax_state_get (9)  - Return the current state of a WiMAX device
wiphy_priv (9)       - return priv from wiphy
xdr_stream_pos (9)   - Return the current offset from the start of the xdr_st...
xprt_get (9)         - return a reference to an RPC transport.