ablkcipher_request_set_callback (9) - set asynchronous callback function
aead_request_set_callback (9) - set asynchronous callback function
ahash_request_set_callback (9) - set asynchronous callback function
akcipher_request_set_callback (9) - Sets an asynchronous callback.
Apache2::compat (3pm) - - 1.0 backward compatibility functions deprecated in 2.0
ata_pci_remove_one (9) - PCI layer callback for device removal
ata_platform_remove_one (9) - Platform layer callback for device removal
ata_scsi_change_queue_depth (9) - SCSI callback for queue depth config
ata_std_postreset (9) - standard postreset callback
avc_add_callback (3) - additional event notification for SELinux userspace ob...
B (3perl)            - The Perl Compiler Backend
B::Deparse (3perl)   - Perl compiler backend to produce perl code
B::Hooks::OP::Check (3pm) - Wrap OP check callbacks
backtrace (3)        - support for application self-debugging
backtrace_symbols (3) - support for application self-debugging
backtrace_symbols_fd (3) - support for application self-debugging
BIO_callback_ctrl (3ssl) - BIO control operations
BIO_debug_callback (3ssl) - BIO callback functions
BIO_get_callback (3ssl) - BIO callback functions
BIO_get_callback_arg (3ssl) - BIO callback functions
BIO_get_info_callback (3ssl) - BIO control operations
BIO_set_callback (3ssl) - BIO callback functions
BIO_set_callback_arg (3ssl) - BIO callback functions
BIO_set_info_callback (3ssl) - BIO control operations
blk_get_backing_dev_info (9) - get the address of a queue's backing_dev_info
blk_requeue_request (9) - put a request back on queue
blk_sync_queue (9)   - cancel any pending callbacks on a queue
block_invalidatepage (9) - invalidate part or all of a buffer-backed page
btrfs-convert (8)    - convert from ext2/3/4 filesystem to btrfs or rollback
Cache::FileBackend (3pm) - - a filesystem based persistance mechanism
Cache::MemoryBackend (3pm) - - a memory based persistance mechanism
Cache::SharedMemoryBackend (3pm) - - a shared memory based persistance mechanism
CGI::Apache (3perl)  - Backward compatibility module for CGI.pm
CGI::Switch (3perl)  - Backward compatibility module for defunct CGI::Switch
clk_notifier_register (9) - change notifier callback
clk_notifier_unregister (9) - change notifier callback
CRYPTO_set_dynlock_create_callback (3ssl) - OpenSSL thread support
CRYPTO_set_dynlock_destroy_callback (3ssl) - OpenSSL thread support
CRYPTO_set_dynlock_lock_callback (3ssl) - OpenSSL thread support
CRYPTO_set_locking_callback (3ssl) - OpenSSL thread support
CRYPTO_THREADID_get_callback (3ssl) - OpenSSL thread support
CRYPTO_THREADID_set_callback (3ssl) - OpenSSL thread support
d_backing_dentry (9) - Get upper or lower dentry we should be using
d_backing_inode (9)  - Get upper or lower inode we should be using
d_rehash (9)         - add an entry back to the hash
daemon (3)           - run in the background
Data::UUID (3pm)     - OSSP uuid Backward Compatibility Perl Binding
db5.3_hotbackup (1)  - Create "hot backup" or "hot failover" snapshots
dev_forward_skb (9)  - loopback an skb to another netif
dev_loopback_xmit (9) - loop back skb
dma_pool_free (9)    - put block back into dma pool
dmi_walk (9)         - Walk the DMI table and get called back for every record
dpkg-repack (1)      - put an unpacked .deb file back together
dpm_resume_end (9)   - Execute “resume” callbacks and complete system tra...
dpm_resume_start (9) - Execute “noirq” and “early” device callbacks.
dpm_suspend_end (9)  - Execute “late” and “noirq” device suspend call...
end_page_writeback (9) - end writeback against a page
fence_add_callback (9) - add a callback to be called when the fence is signaled
fence_remove_callback (9) - remove a callback from the signaling list
fghack (8)           - is an anti-backgrounding tool.
filemap_fdatawait (9) - wait for all under-writeback pages to complete
filemap_fdatawait_range (9) - wait for writeback to complete
find_next_best_node (9) - find the next node that should appear in a given no...
git-fast-import (1)  - Backend for fast Git data importers
git-http-backend (1) - Server side implementation of Git over HTTP
git-remote-fd (1)    - Reflect smart transport stream back to caller
git-sh-i18n--envsubst (1) - Git's own envsubst(1) for i18n fallbacks
git-upload-archive (1) - Send archive back to git-archive
git-upload-pack (1)  - Send objects packed back to git-fetch-pack
idmap_rfc2307 (8)    - Samba's idmap_rfc2307 Backend for Winbind
ieee80211_tx_status (9) - transmit status callback
ieee80211_tx_status_irqsafe (9) - IRQ-safe transmit status callback
ieee80211_tx_status_ni (9) - transmit status callback (in process context)
input_ff_create (9)  - create force-feedback device
input_ff_create_memless (9) - create memoryless force-feedback device
input_ff_destroy (9) - frees force feedback portion of input device
input_ff_erase (9)   - erase a force-feedback effect from device
input_ff_event (9)   - generic handler for force-feedback events
input_ff_upload (9)  - upload effect into force-feedback device
IPC::Run (3pm)       - system() and background procs w/ piping, redirs, ptys ...
JSON::backportPP (3pm) - JSON::XS compatible pure-Perl module.
JSON::backportPP::Boolean (3pm) - dummy module providing JSON::PP::Boolean
JSON::backportPP::Compat5005 (3pm) - Helper module in using JSON::PP in Perl ...
JSON::backportPP::Compat5006 (3pm) - Helper module in using JSON::PP in Perl 5.6
kgdb_arch_set_pc (9) - Generic call back to the program counter
list_for_each_entry_continue_reverse (9) - iterate backwards from the given p...
list_for_each_entry_reverse (9) - iterate backwards over list of given type.
list_for_each_entry_safe_reverse (9) - iterate backwards over list safe again...
list_for_each_prev (9) - iterate over a list backwards
list_for_each_prev_safe (9) - iterate over a list backwards safe against remo...
Mail::SpamAssassin::SubProcBackChannel (3pm) - back-channel for communication...
maple_getcond_callback (9) - setup handling MAPLE_COMMAND_GETCOND
mdiobus_release (9)  - mii_bus device release callback
mpt_event_deregister (9) - Deregister protocol-specific event callback handler
mpt_event_register (9) - Register protocol-specific event callback handler.
mpt_free_msg_frame (9) - Place MPT request frame back on FreeQ.
mpt_register (9)     - Register protocol-specific main callback handler.
mptbase_reply (9)    - MPT base driver's callback routine
mysqldump (1)        - a database backup program
mysqlhotcopy (1)     - a database backup program
Net::DBus::Callback (3pm) - a callback for receiving reactor events
O (3perl)            - Generic interface to Perl Compiler backends
pci_back_from_sleep (9) - turn PCI device on during system-wide transition in...
pci_msi_mask_irq (9) - Generic irq chip callback to mask PCI/MSI interrupts
pci_msi_unmask_irq (9) - Generic irq chip callback to unmask PCI/MSI interrupts
perlrebackslash (1)  - Perl Regular Expression Backslash Sequences and Escapes
pg_basebackup (1)    - take a base backup of a PostgreSQL cluster
rcu_barrier (9)      - Wait until all in-flight call_rcu callbacks complete.
rcu_barrier_bh (9)   - Wait until all in-flight call_rcu_bh callbacks complete.
rcu_barrier_sched (9) - Wait for in-flight call_rcu_sched callbacks.
rcu_barrier_tasks (9) - Wait for in-flight call_rcu_tasks callbacks.
relay_hotcpu_callback (9) - CPU hotplug callback
revalidate_disk (9)  - wrapper for lower-level driver's revalidate_disk call-...
rio_dma_prep_slave_sg (9) - RapidIO specific wrapper for device_prep_slave_sg...
rio_dma_prep_xfer (9) - RapidIO specific wrapper for device_prep_slave_sg cal...
rio_setup_inb_dbell (9) - bind inbound doorbell callback
ROLLBACK (7)         - abort the current transaction
ROLLBACK_PREPARED (7) - cancel a transaction that was earlier prepared for tw...
ROLLBACK_TO_SAVEPOINT (7) - roll back to a savepoint
rpc_max_bc_payload (9) - Get maximum backchannel payload size, in bytes
scriptreplay (1)     - play back typescripts, using timing information
scsi_mode_sense (9)  - issue a mode sense, falling back from 10 to six bytes ...
selinux_set_callback (3) - userspace SELinux callback facilities
sk_stream_write_space (9) - stream socket write_space callback.
skcipher_request_set_callback (9) - set asynchronous callback function
slapd-bdb (5)        - Berkeley DB backends to slapd
slapd-config (5)     - configuration backend to slapd
slapd-dnssrv (5)     - DNS SRV referral backend to slapd
slapd-hdb (5)        - Berkeley DB backends to slapd
slapd-ldap (5)       - LDAP backend to slapd
slapd-ldbm (5)       - Discontinued LDBM backend to slapd
slapd-ldif (5)       - LDIF backend to slapd
slapd-mdb (5)        - Memory-Mapped DB backend to slapd
slapd-meta (5)       - metadirectory backend to slapd
slapd-monitor (5)    - Monitor backend to slapd
slapd-ndb (5)        - MySQL NDB backend to slapd
slapd-null (5)       - Null backend to slapd
slapd-passwd (5)     - /etc/passwd backend to slapd
slapd-perl (5)       - Perl backend to slapd
slapd-relay (5)      - relay backend to slapd
slapd-shell (5)      - Shell backend to slapd
slapd-sock (5)       - Socket backend/overlay to slapd
slapd-sql (5)        - SQL backend to slapd
slapd.backends (5)   - backends for slapd, the stand-alone LDAP daemon
slapo-sock (5)       - Socket backend/overlay to slapd
smbspool_krb5_wrapper (8) - This is a CUPS printing backend which calls smbspool
smbtar (1)           - shell script for backing up SMB/CIFS shares directly t...
snd_ctl_boolean_mono_info (9) - Helper function for a standard boolean info c...
snd_ctl_boolean_stereo_info (9) - Helper function for a standard boolean info...
snd_dma_alloc_pages_fallback (9) - allocate the buffer area according to the ...
snd_dmaengine_pcm_prepare_slave_config (9) - Generic prepare_slave_config cal...
snd_pcm_lib_ioctl (9) - a generic PCM ioctl callback
snd_pcm_playback_avail (9) - Get the available (writable) space for playback
snd_pcm_playback_data (9) - check whether any data exists on the playback buffer
snd_pcm_playback_empty (9) - check whether the playback buffer is empty
snd_pcm_playback_hw_avail (9) - Get the queued space for playback
snd_pcm_playback_ready (9) - check whether the playback buffer is available
snd_soc_dapm_get_enum_double (9) - dapm enumerated double mixer get callback
snd_soc_dapm_get_volsw (9) - dapm mixer get callback
snd_soc_dapm_put_enum_double (9) - dapm enumerated double mixer set callback
snd_soc_dapm_put_volsw (9) - dapm mixer set callback
snd_soc_get_enum_double (9) - enumerated double mixer get callback
snd_soc_get_strobe (9) - strobe get callback
snd_soc_get_volsw (9) - single mixer get callback
snd_soc_get_volsw_range (9) - single mixer get callback with range
snd_soc_get_volsw_sx (9) - single mixer get callback
snd_soc_get_xr_sx (9) - signed multi register get callback
snd_soc_info_enum_double (9) - enumerated double mixer info callback
snd_soc_info_volsw (9) - single mixer info callback
snd_soc_info_volsw_range (9) - single mixer info callback with range.
snd_soc_info_volsw_sx (9) - Mixer info callback for SX TLV controls
snd_soc_info_xr_sx (9) - signed multi register info callback
snd_soc_put_enum_double (9) - enumerated double mixer put callback
snd_soc_put_strobe (9) - strobe put callback
snd_soc_put_volsw (9) - single mixer put callback
snd_soc_put_volsw_range (9) - single mixer put value callback with range.
snd_soc_put_volsw_sx (9) - double mixer set callback
snd_soc_put_xr_sx (9) - signed multi register get callback
SPI_rollback (3)     - abort the current transaction
SPI_rollback_and_chain (3) - abort the current transaction
srcu_barrier (9)     - Wait until all in-flight call_srcu callbacks complete.
SSL_callback_ctrl (3ssl) - internal handling functions for SSL_CTX and SSL ob...
SSL_CTX_callback_ctrl (3ssl) - internal handling functions for SSL_CTX and SS...
SSL_CTX_get_client_cert_cb (3ssl) - handle client certificate callback function
SSL_CTX_get_info_callback (3ssl) - handle information callback for SSL connec...
SSL_CTX_get_verify_callback (3ssl) - get currently set verification parameters
SSL_CTX_sess_get_get_cb (3ssl) - provide callback functions for server side e...
SSL_CTX_sess_get_new_cb (3ssl) - provide callback functions for server side e...
SSL_CTX_sess_get_remove_cb (3ssl) - provide callback functions for server sid...
SSL_CTX_sess_set_get_cb (3ssl) - provide callback functions for server side e...
SSL_CTX_sess_set_new_cb (3ssl) - provide callback functions for server side e...
SSL_CTX_sess_set_remove_cb (3ssl) - provide callback functions for server sid...
SSL_CTX_set_cert_verify_callback (3ssl) - set peer certificate verification p...
SSL_CTX_set_client_cert_cb (3ssl) - handle client certificate callback function
SSL_CTX_set_default_passwd_cb (3ssl) - set passwd callback for encrypted PEM ...
SSL_CTX_set_default_passwd_cb_userdata (3ssl) - set passwd callback for encry...
SSL_CTX_set_info_callback (3ssl) - handle information callback for SSL connec...
SSL_CTX_set_msg_callback (3ssl) - install callback for observing protocol mes...
SSL_CTX_set_msg_callback_arg (3ssl) - install callback for observing protocol...
SSL_CTX_set_psk_client_callback (3ssl) - set PSK client callback
SSL_CTX_set_psk_server_callback (3ssl) - set PSK identity hint to use
SSL_CTX_set_tlsext_ticket_key_cb (3ssl) - set a callback for session ticket p...
SSL_CTX_set_tmp_dh_callback (3ssl) - handle DH keys for ephemeral key exchange
SSL_CTX_set_tmp_rsa_callback (3ssl) - handle RSA keys for ephemeral key exchange
SSL_get_info_callback (3ssl) - handle information callback for SSL connections
SSL_get_msg_callback_arg (3ssl) - install callback for observing protocol mes...
SSL_get_verify_callback (3ssl) - get currently set verification parameters
SSL_set_info_callback (3ssl) - handle information callback for SSL connections
SSL_set_msg_callback (3ssl) - install callback for observing protocol messages
SSL_set_psk_client_callback (3ssl) - set PSK client callback
SSL_set_psk_server_callback (3ssl) - set PSK identity hint to use
SSL_set_tmp_dh_callback (3ssl) - handle DH keys for ephemeral key exchange
SSL_set_tmp_rsa_callback (3ssl) - handle RSA keys for ephemeral key exchange
struct_cfg80211_ops (9) - backend description for wireless configuration
struct_clk_notifier_data (9) - rate data to pass to the notifier callback
struct_fence_array_cb (9) - callback helper for fence array
struct_fence_cb (9)  - callback for fence_add_callback
struct_ff_device (9) - force-feedback part of an input device
struct_ieee80211_ops (9) - callbacks from mac80211 to the driver
struct_iio_buffer_setup_ops (9) - buffer setup related callbacks
struct_w1_async_cmd (9) - execute callback from the w1_process kthread
syscore_resume (9)   - Execute all the registered system core resume callbacks.
syscore_suspend (9)  - Execute all the registered system core suspend callbacks.
systemd-backlight (8) - Load and save the display backlight brightness at boo...
systemd-backlight@.service (8) - Load and save the display backlight brightne...
tag_pages_for_writeback (9) - tag pages to be written by write_cache_pages
Test::Builder (3perl) - Backend for building test libraries
trace_block_bio_backmerge (9) - merging block operation to the end of an exis...
trace_block_rq_requeue (9) - place block IO request back on a queue
trace_workqueue_execute_end (9) - called immediately after the workqueue call...
trace_workqueue_execute_start (9) - called immediately before the workqueue c...
try_to_writeback_inodes_sb (9) - try to start writeback if none underway
try_to_writeback_inodes_sb_nr (9) - try to start writeback if none underway
ungetwc (3)          - push back a wide character onto a FILE stream
usb_hcd_giveback_urb (9) - return URB from HCD to device driver
vgcfgbackup (8)      - backup volume group descriptor area
w1_process_callbacks (9) - execute each dev->async_list callback entry
wait_for_stable_page (9) - wait for writeback to finish, if necessary.
wakeme_after_rcu (9) - Callback function to awaken a task after grace period
wbc_account_io (9)   - account IO issued during writeback
writeback_inodes_sb (9) - writeback dirty inodes from given super_block
writeback_inodes_sb_nr (9) - writeback dirty inodes from given super_block
X509_STORE_CTX_set_verify_cb (3ssl) - set verification callback
X509_STORE_set_verify_cb (3ssl) - set verification callback
X509_STORE_set_verify_cb_func (3ssl) - set verification callback
XML::Parser::Style::Subs (3pm) - glue for handling element callbacks
z8530_rx_done (9)    - Receive completion callback
z8530_tx_done (9)    - TX complete callback