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/linux/drivers/hid/
H A Dhid-appleir.c1 // SPDX-License-Identifier: GPL-2.0-only
6 * Ported to recent 2.6 kernel versions by Greg Kroah-Hartman <gregkh@suse.de>
11 * Copyright (C) 2008 Greg Kroah-Hartman <greg@kroah.com>
21 #include "hid-ids.h"
34 * 25 87 ee 83 0c -
39 * 26 00 00 00 00 for key repeat
45 * 25 87 ee ca 0d -
50 * 26 00 00 00 00 for key repeat
53 * sent after a key is release, which I interpret
61 * 25 87 ee 47 0d -
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H A Dhid-prodikeys.c1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * HID driver for the Prodikeys PC-MIDI Keyboard
8 * Controls for Octave Shift Up/Down, Channel, and
25 #include "hid-ids.h"
29 pr_debug("hid-prodikeys: " format "\n" , ## arg)
31 pr_err("hid-prodikeys: " format "\n" , ## arg)
69 #define PCMIDI_OCTAVE_MIN (-2)
74 static const char shortname[] = "PC-MIDI";
75 static const char longname[] = "Prodikeys PC-MIDI Keyboard";
84 MODULE_PARM_DESC(index, "Index value for the PC-MIDI virtual audio driver");
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/linux/kernel/sched/
H A Dwait.c1 // SPDX-License-Identifier: GPL-2.0-only
9 …_init_waitqueue_head(struct wait_queue_head *wq_head, const char *name, struct lock_class_key *key) in __init_waitqueue_head() argument
11 spin_lock_init(&wq_head->lock); in __init_waitqueue_head()
12 lockdep_set_class_and_name(&wq_head->lock, key, name); in __init_waitqueue_head()
13 INIT_LIST_HEAD(&wq_head->head); in __init_waitqueue_head()
22 wq_entry->flags &= ~WQ_FLAG_EXCLUSIVE; in add_wait_queue()
23 spin_lock_irqsave(&wq_head->lock, flags); in add_wait_queue()
25 spin_unlock_irqrestore(&wq_head->lock, flags); in add_wait_queue()
33 wq_entry->flags |= WQ_FLAG_EXCLUSIVE; in add_wait_queue_exclusive()
34 spin_lock_irqsave(&wq_head->lock, flags); in add_wait_queue_exclusive()
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H A Dwait_bit.c1 // SPDX-License-Identifier: GPL-2.0-only
26 struct wait_bit_key *key = arg; in wake_bit_function() local
29 if (wait_bit->key.flags != key->flags || in wake_bit_function()
30 wait_bit->key.bit_nr != key->bit_nr || in wake_bit_function()
31 test_bit(key->bit_nr, key->flags)) in wake_bit_function()
34 return autoremove_wake_function(wq_entry, mode, sync, key); in wake_bit_function()
39 * To allow interruptible waiting and asynchronous (i.e. non-blocking)
50 prepare_to_wait(wq_head, &wbq_entry->wq_entry, mode); in __wait_on_bit()
51 if (test_bit(wbq_entry->key.bit_nr, wbq_entry->key.flags)) in __wait_on_bit()
52 ret = (*action)(&wbq_entry->key, mode); in __wait_on_bit()
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/linux/Documentation/devicetree/bindings/input/
H A Dgpio-keys.yaml1 # SPDX-License-Identifier: GPL-2.0-only
3 ---
4 $id: http://devicetree.org/schemas/input/gpio-keys.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Rob Herring <robh@kernel.org>
15 - gpio-keys
16 - gpio-keys-polled
23 poll-interval: true
26 …"^(button|event|key|switch|(button|event|key|switch)-[a-z0-9-]+|[a-z0-9-]+-(button|event|key|switc…
35 - items:
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/linux/drivers/scsi/
H A Dscsi_devinfo.c1 // SPDX-License-Identifier: GPL-2.0
33 int key; /* unique numeric identifier */ member
43 * from the default, includes black-listed (broken) devices. The entries here
58 * others will lock up.
60 {"Aashima", "IMAGERY 2400SP", "1.03", BLIST_NOLUN}, /* locks up */
61 {"CHINON", "CD-ROM CDS-431", "H42", BLIST_NOLUN}, /* locks up */
62 {"CHINON", "CD-ROM CDS-535", "Q14", BLIST_NOLUN}, /* locks up */
63 {"DENON", "DRD-25X", "V", BLIST_NOLUN}, /* locks up */
66 {"IBM", "2104-DU3", NULL, BLIST_NOLUN}, /* locks up */
67 {"IBM", "2104-TU3", NULL, BLIST_NOLUN}, /* locks up */
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/linux/fs/crypto/
H A Dkeysetup.c1 // SPDX-License-Identifier: GPL-2.0
3 * Key setup facility for FS encryption support.
19 .friendly_name = "AES-256-XTS",
27 .friendly_name = "AES-256-CBC-CTS",
34 .friendly_name = "AES-128-CBC-ESSIV",
42 .friendly_name = "AES-128-CBC-CTS",
49 .friendly_name = "SM4-XTS",
57 .friendly_name = "SM4-CBC-CTS",
72 .friendly_name = "AES-256-HCTR2",
88 if (S_ISREG(inode->i_mode)) in select_encryption_mode()
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H A Dhooks.c1 // SPDX-License-Identifier: GPL-2.0-only
5 * Encryption hooks for higher-level filesystem operations.
13 * fscrypt_file_open() - prepare to open a possibly-encrypted regular file
15 * @filp: the struct file being set up
17 * Currently, an encrypted regular file can only be opened if its encryption key
19 * Therefore, we first set up the inode's encryption key (if not already done)
30 * Return: 0 on success, -ENOKEY if the key is missing, or another -errno code
46 * encryption policy comparison, but it's expensive on multi-core in fscrypt_file_open()
48 * with a lightweight RCU-mode check for the parent directory being in fscrypt_file_open()
54 dentry_parent = READ_ONCE(dentry->d_parent); in fscrypt_file_open()
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/linux/drivers/accessibility/speakup/
H A DDefaultKeyAssignments3 anything you want but that will take some familiarity with key
6 We have remapped the insert or zero key on the keypad to act as a
7 shift key. Well, actually as an altgr key. So in the following list
8 InsKeyPad-period means hold down the insert key like a shift key and
11 KeyPad-8 Say current Line
12 InsKeyPad-8 say from top of screen to reading cursor.
13 KeyPad-7 Say Previous Line (UP one line)
14 KeyPad-9 Say Next Line (down one line)
15 KeyPad-5 Say Current Word
16 InsKeyPad-5 Spell Current Word
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/linux/tools/testing/selftests/drivers/net/ocelot/
H A Dtc_flower_chains.sh2 # SPDX-License-Identifier: GPL-2.0
52 # +----------------------------------------------+ +-----------------------------------------+
55 # | +----------+ +----------+ +----------+ | | +----------+ +----------+ |
56 # | | Lookup 0 | | Lookup 1 | | Lookup 2 | | --+------> PAG 0: | Lookup 0 | -> | Lookup 1 | |
57 # | +----------+ -> +----------+ -> +----------+ | | | +----------+ +----------+ |
58 # | |key&action| |key&action| |key&action| | | | |key&action| |key&action| |
59 # | |key&action| |key&action| |key&action| | | | | .. | | .. | |
60 # | | .. | | .. | | .. | | | | +----------+ +----------+ |
61 # | +----------+ +----------+ +----------+ | | | |
62 # | selects PAG | | | +----------+ +----------+ |
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/linux/Documentation/networking/
H A Dopenvswitch.rst1 .. SPDX-License-Identifier: GPL-2.0
8 flow-level packet processing on selected network devices. It can be
10 VLAN processing, network access control, flow-based network control,
22 extracting its flow key and looking it up in the flow table. If there
25 its processing, userspace will likely set up a flow to handle further
26 packets of the same type entirely in-kernel).
29 Flow key compatibility
30 ----------------------
35 versions to parse additional protocols as part of the flow key. It
39 applications to work with any version of the flow key, past or future.
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H A Dfib_trie.rst1 .. SPDX-License-Identifier: GPL-2.0
4 LC-trie implementation notes
8 ----------
10 An end node with data. This has a copy of the relevant key, along
16 indexed through a subset of the key. See Level Compression.
19 ------------------------
21 The number of bits in the key segment used for indexing into the
22 child array - the "child index". See Level Compression.
25 The position (in the key) of the key segment used for indexing into
30 a segment of the key specified by the parent's "pos" and "bits"
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/linux/Documentation/crypto/
H A Dasymmetric-keys.rst1 .. SPDX-License-Identifier: GPL-2.0
4 Asymmetric / Public-key Cryptography Key Type
9 - Overview.
10 - Key identification.
11 - Accessing asymmetric keys.
12 - Signature verification.
13 - Asymmetric key subtypes.
14 - Instantiation data parsers.
15 - Keyring link restrictions.
21 The "asymmetric" key type is designed to be a container for the keys used in
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/linux/Documentation/admin-guide/laptops/
H A Dthinkpad-acpi.rst9 - Borislav Deianov <borislav@users.sf.net>
10 - Henrique de Moraes Holschuh <hmh@hmh.eng.br>
12 http://ibm-acpi.sf.net/
19 This driver used to be named ibm-acpi until kernel 2.6.21 and release
20 0.13-20070314. It used to be in the drivers/acpi tree, but it was
21 moved to the drivers/misc tree and renamed to thinkpad-acpi for kernel
25 The driver is named "thinkpad-acpi". In some places, like module
29 "tpacpi" is used as a shorthand where "thinkpad-acpi" would be too
33 ------
38 - Fn key combinations
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/linux/Documentation/core-api/
H A Dassoc_array.rst20 Rather, the array is made up of metadata blocks that point to objects.
24 4. Index keys must be unique. Inserting an object with the same key as one
35 key order.
43 10. Objects in the array can be looked up by means of their index key.
45 11. Objects can be looked up while the array is being modified, provided the
46 RCU readlock is being held by the thread doing the look up.
48 The implementation uses a tree of 16-pointer nodes internally that are indexed
49 on each level by nibbles from the index key in the same manner as in a radix
51 what would otherwise be a series of single-occupancy nodes. Further, nodes
68 ./script/config -e ASSOCIATIVE_ARRAY
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/linux/Documentation/userspace-api/media/rc/
H A Drc-tables.rst1 .. SPDX-License-Identifier: GPL-2.0 OR GFDL-1.1-no-invariants-or-later
20 layer. This means that the IR key strokes will look like normal keyboard
21 key strokes (if CONFIG_INPUT_KEYBOARD is enabled). Using the event
30 .. flat-table:: IR default keymapping
31 :header-rows: 0
32 :stub-columns: 0
36 - .. row 1
38 - Key code
40 - Meaning
42 - Key examples on IR
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/linux/include/linux/
H A Dbtree.h1 /* SPDX-License-Identifier: GPL-2.0 */
11 * A B+Tree is a data structure for looking up arbitrary (currently allowing
13 * is described at https://en.wikipedia.org/wiki/B-tree, we currently do not
14 * use binary search to find the key on lookups.
18 * and pointers to sub-nodes, or, for leaf nodes, the keys and values for the
24 * Each key here is an array of unsigned longs, geo->no_longs in total. The
25 * number of keys and values (N) is geo->no_pairs.
29 * struct btree_head - btree head
45 * btree_alloc - allocate function for the mempool
52 * btree_free - free function for the mempool
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H A Dfscrypt.h1 /* SPDX-License-Identifier: GPL-2.0 */
3 * fscrypt.h: declarations for per-file encryption
5 * Filesystems that implement per-file encryption must include this header
24 * some of the supported modes don't support arbitrarily byte-aligned messages.
28 * filesystem can generate arbitrarily byte-aligned block lengths (e.g., via
53 #define FSTR_TO_QSTR(f) QSTR_INIT((f)->name, (f)->len)
54 #define fname_name(p) ((p)->disk_name.name)
55 #define fname_len(p) ((p)->disk_name.len)
66 * filesystem-specific part of the inode, relative to the beginning of
73 * first time an encryption key is set up for a file. The bounce page
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/linux/kernel/trace/
H A Dtracing_map.c1 // SPDX-License-Identifier: GPL-2.0
3 * tracing_map - lock-free map for tracing
7 * tracing_map implementation inspired by lock-free map algorithms
10 * http://www.azulsystems.com/blog/cliff/2007-03-26-non-blocking-hashtable
30 * tracing_map_update_sum - Add a value to a tracing_map_elt's sum field
37 * tracing_map_add_sum_field() when the tracing map was set up.
41 atomic64_add(n, &elt->fields[i].sum); in tracing_map_update_sum()
45 * tracing_map_read_sum - Return the value of a tracing_map_elt's sum field
52 * up.
58 return (u64)atomic64_read(&elt->fields[i].sum); in tracing_map_read_sum()
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/linux/Documentation/input/devices/
H A Datarikbd.rst12 provides a convenient connection point for a mouse and switch-type joysticks.
13 The ikbd processor also maintains a time-of-day clock with one second
18 The ikbd communicates with the main processor over a high speed bi-directional
27 The keyboard always returns key make/break scan codes. The ikbd generates
28 keyboard scan codes for each key press and release. The key scan make (key
30 ISO key position in the scan code table should exist even if no keyswitch
31 exists in that position on a particular keyboard. The break code for each key
41 0xF8-0xFB relative mouse position records (lsbs determined by
43 0xFC time-of-day
49 The two shift keys return different scan codes in this mode. The ENTER key
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/linux/tools/testing/selftests/drivers/net/
H A Dstats.py2 # SPDX-License-Identifier: GPL-2.0
24 def check_pause(cfg) -> None:
31 ethnl.pause_get({"header": {"dev-index": cfg.ifindex}})
37 data = ethnl.pause_get({"header": {"dev-index": cfg.ifindex,
42 def check_fec(cfg) -> None:
49 ethnl.fec_get({"header": {"dev-index": cfg.ifindex}})
55 data = ethnl.fec_get({"header": {"dev-index": cfg.ifindex,
60 def check_fec_hist(cfg) -> Non
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/linux/security/keys/
H A Dkey.c1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /* Basic authentication token and access key management
4 * Copyright (C) 2004-2008 Red Hat, Inc. All Rights Reserved.
26 unsigned int key_quota_root_maxkeys = 1000000; /* root's key count quota */
27 unsigned int key_quota_root_maxbytes = 25000000; /* root's key space quota */
28 unsigned int key_quota_maxkeys = 200; /* general key count quota */
29 unsigned int key_quota_maxbytes = 20000; /* general key space quota */
34 /* We serialise key instantiation and link */
38 void __key_check(const struct key *key) in __key_check() argument
40 printk("__key_check: key %p {%08x} should be {%08x}\n", in __key_check()
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H A Dkeyring.c1 // SPDX-License-Identifier: GPL-2.0-or-later
4 * Copyright (C) 2004-2005, 2008, 2013 Red Hat, Inc. All Rights Reserved.
17 #include <keys/keyring-type.h>
18 #include <keys/user-type.h>
25 * When plumbing the depths of the key tree, this sets a hard limit
40 static inline struct key *keyring_ptr_to_key(const struct assoc_array_ptr *x) in keyring_ptr_to_key()
43 return (struct key *)((unsigned long)object & ~KEYRING_PTR_SUBTYPE); in keyring_ptr_to_key()
45 static inline void *keyring_key_to_ptr(struct key *key) in keyring_key_to_ptr() argument
47 if (key->type == &key_type_keyring) in keyring_key_to_ptr()
48 return (void *)((unsigned long)key | KEYRING_PTR_SUBTYPE); in keyring_key_to_ptr()
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/linux/tools/testing/selftests/drivers/net/mlxsw/
H A Dmirror_gre.sh2 # SPDX-License-Identifier: GPL-2.0
27 tunnel_create gt6-key ip6gretap 2001:db8:3::1 2001:db8:3::2 \
28 ttl 100 tos inherit allow-localremote \
29 key 1234
31 tunnel_create h3-gt6-key ip6gretap 2001:db8:3::2 2001:db8:3::1 \
32 key 1234
33 ip link set h3-gt6-key vrf v$h3
34 matchall_sink_create h3-gt6-key
45 tunnel_destroy h3-gt6-key
46 tunnel_destroy gt6-key
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/linux/drivers/input/keyboard/
H A Dhil_kbd.c2 * Generic linux-input device driver for keyboard devices
30 * HP-HIL Technical Reference Manual. Hewlett Packard Product No. 45918A
108 idx = dev->idx4 / 4; in hil_dev_handle_command_response()
109 p = dev->data[idx - 1]; in hil_dev_handle_command_response()
113 buf = dev->idd; in hil_dev_handle_command_response()
117 buf = dev->rsc; in hil_dev_handle_command_response()
121 buf = dev->exd; in hil_dev_handle_command_response()
125 dev->rnm[HIL_PACKET_MAX_LENGTH] = 0; in hil_dev_handle_command_response()
126 buf = dev->rnm; in hil_dev_handle_command_response()
139 buf[i] = dev->data[i] & HIL_PKT_DATA_MASK; in hil_dev_handle_command_response()
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