| /Linux-v5.15/Documentation/userspace-api/media/v4l/ |
| D | vidioc-g-ext-ctrls.rst | 1 .. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
13 VIDIOC_G_EXT_CTRLS - VIDIOC_S_EXT_CTRLS - VIDIOC_TRY_EXT_CTRLS - Get or set the value of several co…
37 Pointer to struct :c:type:`v4l2_ext_controls`.
44 :ref:`ctrl-class`) and all controls in the control array must belong
49 :c:type:`v4l2_ext_controls`, and initialize the
50 struct :c:type:`v4l2_ext_control` array pointed to
53 To get the current value of a set of controls applications initialize
55 :c:type:`v4l2_ext_control` and call the
61 relevant for pointer-type controls like strings), then the driver will
62 set ``size`` to a valid value and return an ``ENOSPC`` error code. You
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| D | vidioc-queryctrl.rst | 1 .. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
13 VIDIOC_QUERYCTRL - VIDIOC_QUERY_EXT_CTRL - VIDIOC_QUERYMENU - Enumerate controls and menu control i…
35 Pointer to struct :c:type:`v4l2_queryctrl`, :c:type:`v4l2_query_ext_ctrl`
36 or :c:type:`v4l2_querymenu` (depending on the ioctl).
41 To query the attributes of a control applications set the ``id`` field
42 of a struct :ref:`v4l2_queryctrl <v4l2-queryctrl>` and call the
43 ``VIDIOC_QUERYCTRL`` ioctl with a pointer to this structure. The driver
49 exclusive ``V4L2_CID_LASTP1``. Drivers may return ``EINVAL`` if a control in
60 driver returns the next supported non-compound control, or ``EINVAL`` if
63 type ≥ ``V4L2_CTRL_COMPOUND_TYPES`` and/or array control, in other words
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| D | vidioc-dqevent.rst | 1 .. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
13 VIDIOC_DQEVENT - Dequeue event
29 Pointer to struct :c:type:`v4l2_event`.
34 Dequeue an event from a video device. No input is required for this
35 ioctl. All the fields of the struct :c:type:`v4l2_event`
40 .. c:type:: v4l2_event
45 .. flat-table:: struct v4l2_event
46 :header-rows: 0
47 :stub-columns: 0
50 * - __u32
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| D | buffer.rst | 1 .. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
10 A buffer contains data exchanged by application and driver using one of
11 the Streaming I/O methods. In the multi-planar API, the data is held in
12 planes, while the buffer structure acts as a container for the planes.
14 copied. These pointers, together with meta-information like timestamps
15 or field parity, are stored in a struct :c:type:`v4l2_buffer`,
18 :ref:`VIDIOC_DQBUF <VIDIOC_QBUF>` ioctl. In the multi-planar API,
19 some plane-specific members of struct :c:type:`v4l2_buffer`,
21 struct :c:type:`v4l2_plane` instead. In that case,
22 struct :c:type:`v4l2_buffer` contains an array of plane structures.
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| /Linux-v5.15/scripts/kconfig/ |
| D | expr.c | 1 // SPDX-License-Identifier: GPL-2.0
3 * Copyright (C) 2002 Roman Zippel <zippel@linux-m68k.org>
21 e->type = E_SYMBOL; in expr_alloc_symbol()
22 e->left.sym = sym; in expr_alloc_symbol()
26 struct expr *expr_alloc_one(enum expr_type type, struct expr *ce) in expr_alloc_one() argument
29 e->type = type; in expr_alloc_one()
30 e->left.expr = ce; in expr_alloc_one()
34 struct expr *expr_alloc_two(enum expr_type type, struct expr *e1, struct expr *e2) in expr_alloc_two() argument
37 e->type = type; in expr_alloc_two()
38 e->left.expr = e1; in expr_alloc_two()
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| /Linux-v5.15/include/kunit/ |
| D | assert.h | 1 /* SPDX-License-Identifier: GPL-2.0 */
19 * enum kunit_assert_type - Type of expectation/assertion.
20 * @KUNIT_ASSERTION: Used to denote that a kunit_assert represents an assertion.
21 * @KUNIT_EXPECTATION: Denotes that a kunit_assert represents an expectation.
23 * Used in conjunction with a &struct kunit_assert to denote whether it
32 * struct kunit_assert - Data for printing a failed assertion or expectation.
34 * @type: the type (either an expectation or an assertion) of this kunit_assert.
38 * @format: a function which formats the data in this kunit_assert to a string.
40 * Represents a failed expectation/assertion. Contains all the data necessary to
41 * format a string to a user reporting the failure.
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| /Linux-v5.15/Documentation/driver-api/media/ |
| D | v4l2-event.rst | 1 .. SPDX-License-Identifier: GPL-2.0
4 -----------
6 The V4L2 events provide a generic way to pass events to user space.
7 The driver must use :c:type:`v4l2_fh` to be able to support V4L2 events.
9 Events are subscribed per-filehandle. An event specification consists of a
10 ``type`` and is optionally associated with an object identified through the
12 identified by the ``(type, id)`` tuple.
14 The :c:type:`v4l2_fh` struct has a list of subscribed events on its
17 When the user subscribes to an event, a :c:type:`v4l2_subscribed_event`
18 struct is added to :c:type:`v4l2_fh`\ ``.subscribed``, one for every
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| D | v4l2-dev.rst | 1 .. SPDX-License-Identifier: GPL-2.0
7 :c:type:`video_device` struct (``v4l2-dev.h``). This struct can either be
8 allocated dynamically or embedded in a larger struct.
12 .. code-block:: c
17 return -ENOMEM;
19 vdev->release = video_device_release;
21 If you embed it in a larger struct, then you must set the ``release()``
24 .. code-block:: c
26 struct video_device *vdev = &my_vdev->vdev;
28 vdev->release = my_vdev_release;
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| D | v4l2-subdev.rst | 1 .. SPDX-License-Identifier: GPL-2.0
3 V4L2 sub-devices
4 ----------------
6 Many drivers need to communicate with sub-devices. These devices can do all
8 encoding or decoding. For webcams common sub-devices are sensors and camera
12 driver with a consistent interface to these sub-devices the
13 :c:type:`v4l2_subdev` struct (v4l2-subdev.h) was created.
15 Each sub-device driver must have a :c:type:`v4l2_subdev` struct. This struct
16 can be stand-alone for simple sub-devices or it might be embedded in a larger
17 struct if more state information needs to be stored. Usually there is a
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| /Linux-v5.15/Documentation/bpf/ |
| D | btf.rst | 2 BPF Type Format (BTF)
8 BTF (BPF Type Format) is the metadata format which encodes the debug info
23 verifies the BTF info before using it. The ELF file format is a user space
26 The type and string sections are part of the BTF kernel API, describing the
32 2. BTF Type and String Encoding
35 The file ``include/uapi/linux/btf.h`` provides high-level definition of how
47 __u32 type_off; /* offset of type section */
48 __u32 type_len; /* length of type section */
54 endian systems, and can be used to test whether BTF is generated for big- or
55 little-endian target. The ``btf_header`` is designed to be extensible with
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| D | map_cgroup_storage.rst | 1 .. SPDX-License-Identifier: GPL-2.0-only
8 The ``BPF_MAP_TYPE_CGROUP_STORAGE`` map type represents a local fix-sized
13 The map provide a local storage at the cgroup that the BPF program is attached
14 to. It provides a faster and simpler access than the general purpose hash
15 table, which performs a hash table lookups, and requires user to track live
19 ``BPF_MAP_TYPE_CGROUP_STORAGE`` map type. Some of its behaviors was changed in
25 The map uses key of type of either ``__u64 cgroup_inode_id`` or
34 ``attach_type`` is the the program's attach type.
36 Linux 5.9 added support for type ``__u64 cgroup_inode_id`` as the key type.
37 When this key type is used, then all attach types of the particular cgroup and
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| /Linux-v5.15/drivers/gpu/drm/nouveau/nvkm/core/ |
| D | mm.c | 4 * Permission is hereby granted, free of charge, to any person obtaining a
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
26 #define node(root, dir) ((root)->nl_entry.dir == &mm->nodes) ? NULL : \
27 list_entry((root)->nl_entry.dir, struct nvkm_mm_node, nl_entry)
36 list_for_each_entry(node, &mm->nodes, nl_entry) { in nvkm_mm_dump()
38 node->offset, node->length, node->type); in nvkm_mm_dump()
41 list_for_each_entry(node, &mm->free, fl_entry) { in nvkm_mm_dump()
43 node->offset, node->length, node->type); in nvkm_mm_dump()
56 if (prev && prev->type == NVKM_MM_TYPE_NONE) { in nvkm_mm_free()
57 prev->length += this->length; in nvkm_mm_free()
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| /Linux-v5.15/drivers/usb/typec/ |
| D | Kconfig | 1 # SPDX-License-Identifier: GPL-2.0
4 tristate "USB Type-C Support"
6 USB Type-C Specification defines a cable and connector for USB where
7 only one type of plug is supported on both ends, i.e. there will not
8 be Type-A plug on one end of the cable and Type-B plug on the other.
9 Determination of the host-to-device relationship happens through a
10 specific Configuration Channel (CC) which goes through the USB Type-C
12 Accessory Modes - Analog Audio and Debug - and if USB Power Delivery
16 USB Power Delivery Specification defines a protocol that can be used
19 5V, up to 20V, and current up to 5A over the cable. The USB Power
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| /Linux-v5.15/arch/m68k/include/asm/ |
| D | bootstd.h | 1 /* SPDX-License-Identifier: GPL-2.0 */
4 * (c) 1999, Rt-Control, Inc.
14 #define __BN_exec 2 /* executes a bootloader image */
15 #define __BN_exit 3 /* terminates a bootloader image */
16 #define __BN_program 4 /* program FLASH from a chain */
22 #define __BN_mmap 10 /* map a file descriptor into memory */
23 #define __BN_munmap 11 /* remove a file to memory mapping */
26 #define __BN_getbenv 14 /* get a bootloader envvar */
27 #define __BN_setbenv 15 /* get a bootloader envvar */
38 #define __bsc_return(type, res) \ argument
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| /Linux-v5.15/include/linux/ |
| D | minmax.h | 1 /* SPDX-License-Identifier: GPL-2.0 */
10 * - avoid multiple evaluations of the arguments (so side-effects like
11 * "x++" happen only once) when non-constant.
12 * - perform strict type-checking (to generate warnings instead of
15 * - retain result as a constant expressions when called with only
41 * min - return minimum of two values of the same or compatible types
48 * max - return maximum of two values of the same or compatible types
55 * min3 - return minimum of three values
63 * max3 - return maximum of three values
71 * min_not_zero - return the minimum that is _not_ zero, unless both are zero
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| D | moduleparam.h | 1 /* SPDX-License-Identifier: GPL-2.0 */
21 #define MAX_PARAM_PREFIX_LEN (64 - sizeof(unsigned long))
29 __MODULE_INFO(parmtype, name##type, #name ":" _type)
41 * NOARG - the parameter allows for no argument (foo instead of foo=1)
50 /* Returns 0, or -errno. arg is in kp->arg. */
52 /* Returns length written or -errno. Buffer is 4k (ie. be short!) */
54 /* Optional function to free kp->arg when module unloaded. */
61 * UNSAFE - the parameter is dangerous and setting it will taint the kernel
62 * HWPARAM - Hardware param not permitted in lockdown mode
102 * module_param - typesafe helper for a module/cmdline parameter
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| D | elfnote.h | 1 /* SPDX-License-Identifier: GPL-2.0 */
5 * Helper macros to generate ELF Note structures, which are put into a
7 * including name-value pairs of metadata into the kernel binary (or
10 * Each note has three parts: a name, a type and a desc. The name is
11 * intended to distinguish the note's originator, so it would be a
12 * company, project, subsystem, etc; it must be in a suitable form for
13 * use in a section name. The type is an integer which is used to tag
15 * "FooCo"'s type 42 is distinct from "BarProj"'s type 42). The
19 * All notes from a given NAME are put into a section named
21 * are packed into a single .notes section, which is mapped into the
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| /Linux-v5.15/Documentation/netlabel/ |
| D | draft-ietf-cipso-ipsecurity-01.txt | 12 This Internet Draft provides the high level specification for a Commercial
21 Internet Drafts are draft documents valid for a maximum of six months.
24 material or to cite them other than as a "working draft" or "work in
27 Please check the I-D abstract listing contained in each Internet Draft
36 these options is the DoD Basic Security Option (BSO) (Type 130) which allows
38 provides sixteen security classifications and a variable number of handling
40 categories or compartments, another security option (Type 133) exists and
46 mandatory access controls and multi-level security. These systems are
47 no longer built specifically for a particular group in the defense or
49 for use in a variety of government and civil sector environments.
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| /Linux-v5.15/security/keys/ |
| D | key.c | 1 // SPDX-License-Identifier: GPL-2.0-or-later
4 * Copyright (C) 2004-2008 Red Hat, Inc. All Rights Reserved.
42 key, key->magic, KEY_DEBUG_MAGIC); in __key_check()
48 * Get the key quota record for a user, allocating a new record if one doesn't
61 /* search the tree for a user record with a matching UID */ in key_user_lookup()
66 if (uid_lt(uid, user->uid)) in key_user_lookup()
67 p = &(*p)->rb_left; in key_user_lookup()
68 else if (uid_gt(uid, user->uid)) in key_user_lookup()
69 p = &(*p)->rb_right; in key_user_lookup()
74 /* if we get here, we failed to find a match in the tree */ in key_user_lookup()
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| /Linux-v5.15/Documentation/devicetree/bindings/iio/temperature/ |
| D | adi,ltc2983.yaml | 1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Analog Devices LTC2983 Multi-sensor Temperature system
10 - Nuno Sá <nuno.sa@analog.com>
13 Analog Devices LTC2983 Multi-Sensor Digital Temperature Measurement System
14 https://www.analog.com/media/en/technical-documentation/data-sheets/2983fc.pdf
19 - adi,ltc2983
27 adi,mux-delay-config-us:
38 adi,filter-notch-freq:
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| /Linux-v5.15/net/netfilter/ipset/ |
| D | Kconfig | 1 # SPDX-License-Identifier: GPL-2.0-only
12 To compile it as a module, choose M here. If unsure, say N.
32 This option adds the bitmap:ip set type support, by which one
33 can store IPv4 addresses (or network addresse) from a range.
35 To compile it as a module, choose M here. If unsure, say N.
41 This option adds the bitmap:ip,mac set type support, by which one
42 can store IPv4 address and (source) MAC address pairs from a range.
44 To compile it as a module, choose M here. If unsure, say N.
50 This option adds the bitmap:port set type support, by which one
51 can store TCP/UDP port numbers from a range.
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| /Linux-v5.15/tools/testing/kunit/test_data/ |
| D | test_is_test_passed-no_tests_run_no_header.log | 2 soft - 0
3 hard - NONE
4 Checking environment variables for a tempdir...none found
7 Adding 24743936 bytes to physical memory to account for exec-shield gap
8 Linux version 4.12.0-rc3-00010-g7319eb35f493-dirty (brendanhiggins@mactruck.svl.corp.google.com) (g…
11 PID hash table entries: 256 (order: -1, 2048 bytes)
13 Inode-cache hash table entries: 4096 (order: 3, 32768 bytes)
14 …(1681K kernel code, 480K rwdata, 400K rodata, 89K init, 205K bss, 29064K reserved, 0K cma-reserved)
15 SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
20 Mount-cache hash table entries: 512 (order: 0, 4096 bytes)
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| /Linux-v5.15/arch/sh/include/asm/ |
| D | io.h | 1 /* SPDX-License-Identifier: GPL-2.0 */
22 #include <asm-generic/iomap.h>
26 #include <asm-generic/pci_iomap.h>
27 #include <mach/mangle-port.h>
29 #define __raw_writeb(v,a) (__chk_io_ptr(a), *(volatile u8 __force *)(a) = (v)) argument
30 #define __raw_writew(v,a) (__chk_io_ptr(a), *(volatile u16 __force *)(a) = (v)) argument
31 #define __raw_writel(v,a) (__chk_io_ptr(a), *(volatile u32 __force *)(a) = (v)) argument
32 #define __raw_writeq(v,a) (__chk_io_ptr(a), *(volatile u64 __force *)(a) = (v)) argument
34 #define __raw_readb(a) (__chk_io_ptr(a), *(volatile u8 __force *)(a)) argument
35 #define __raw_readw(a) (__chk_io_ptr(a), *(volatile u16 __force *)(a)) argument
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| /Linux-v5.15/Documentation/driver-api/surface_aggregator/ |
| D | ssh.rst | 1 .. SPDX-License-Identifier: GPL-2.0+
3 .. |u8| replace:: :c:type:`u8 <u8>`
4 .. |u16| replace:: :c:type:`u16 <u16>`
5 .. |TYPE| replace:: ``TYPE`` substdef
27 SAM-over-SSH, as opposed to SAM-over-HID for the older generations.
29 On Surface devices with SAM-over-SSH, SAM is connected to the host via UART
32 and power information and events, thermal read-outs and events, and many
38 document: All of this has been reverse-engineered and may thus be erroneous
41 All CRCs used in the following are two-byte ``crc_ccitt_false(0xffff, ...)``.
42 All multi-byte values are little-endian, there is no implicit padding between
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| /Linux-v5.15/net/ceph/crush/ |
| D | hash.c | 1 // SPDX-License-Identifier: GPL-2.0
9 * Robert Jenkins' function for mixing 32-bit values
11 * a, b = random bits, c = input and output
13 #define crush_hashmix(a, b, c) do { \ argument
14 a = a-b; a = a-c; a = a^(c>>13); \
15 b = b-c; b = b-a; b = b^(a<<8); \
16 c = c-a; c = c-b; c = c^(b>>13); \
17 a = a-b; a = a-c; a = a^(c>>12); \
18 b = b-c; b = b-a; b = b^(a<<16); \
19 c = c-a; c = c-b; c = c^(b>>5); \
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