| /linux/Documentation/userspace-api/media/v4l/ |
| H A D | pixfmt-v4l2.rst | 1 .. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
5 Single-planar format structure
14 .. flat-table:: struct v4l2_pix_format
15 :header-rows: 0
16 :stub-columns: 0
19 * - __u32
20 - ``width``
21 - Image width in pixels.
22 * - __u32
23 - ``height``
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| H A D | vidioc-subdev-enum-mbus-code.rst | 1 .. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
13 VIDIOC_SUBDEV_ENUM_MBUS_CODE - Enumerate media bus formats
34 This call is used by the application to access the enumeration
42 Therefore, to enumerate media bus formats available at a given sub-device pad,
48 A successful call will return with the ``code`` field filled in
58 other pads of the sub-device, as well as on the current active links.
66 .. flat-table:: struct v4l2_subdev_mbus_code_enum
67 :header-rows: 0
68 :stub-columns: 0
71 * - __u32
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| H A D | userp.rst | 1 .. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
11 ``V4L2_CAP_STREAMING`` flag in the ``capabilities`` field of struct
19 methods. Buffers (planes) are allocated by the application itself, and
20 can reside for example in virtual or shared memory. Only pointers to
21 data are exchanged, these pointers and meta-information are passed in
22 struct :c:type:`v4l2_buffer` (or in struct
23 :c:type:`v4l2_plane` in the multi-planar API case). The
33 .. code-block:: c
41 if (ioctl (fd, VIDIOC_REQBUFS, &reqbuf) == -1) {
55 area of memory. This happens transparently to the application in the
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| H A D | vidioc-enum-frameintervals.rst | 1 .. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
13 VIDIOC_ENUM_FRAMEINTERVALS - Enumerate frame intervals
46 - **Discrete:** The function returns success if the given index value
47 (zero-based) is valid. The application should increase the index by
53 - **Step-wise:** The function returns success if the given index value
59 - **Continuous:** This is a special case of the step-wise type above.
66 When the application calls the function with index zero, it must check
74 The order in which the frame intervals are returned has no
75 special meaning. In particular does it not say anything about potential
79 without any interaction from the application itself. This means that the
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| H A D | vidioc-enum-framesizes.rst | 1 .. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
13 VIDIOC_ENUM_FRAMESIZES - Enumerate frame sizes
37 and height in pixels) that the device supports for the given pixel
47 - **Discrete:** The function returns success if the given index value
48 (zero-based) is valid. The application should increase the index by
54 - **Step-wise:** The function returns success if the given index value
60 - **Continuous:** This is a special case of the step-wise type above.
67 When the application calls the function with index zero, it must check
74 The order in which the frame sizes are returned has no special
75 meaning. In particular does it not say anything about potential default
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| /linux/tools/testing/selftests/hid/tests/ |
| H A D | base_gamepad.py | 1 # SPDX-License-Identifier: GPL-2.0
59 def __init__(self, rdesc, application="Game Pad", name=None, input_info=None): argument
61 super().__init__(name, application, input_info=input_info, rdesc=rdesc)
70 for r in self.parsed_rdesc.input_reports.values():
71 if r.application_name == self.application:
72 self.fields.extend([f.usage_name for f in r])
88 application="Game Pad", argument
98 (expressed in 1/8 of circle, 0 being North, 2 East)
103 :param application: the application used to report the values
106 for i, b in buttons.items():
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| H A D | base_device.py | 2 # SPDX-License-Identifier: GPL-2.0
3 # -*- coding: utf-8 -*-
13 # This program is distributed in the hope that it will be useful,
58 def int_value(self) -> int:
62 def int_value(self, v: int) -> None:
66 def str_value(self) -> str:
70 def str_value(self, v: str) -> None:
80 def brightness(self) -> int:
84 def brightness(self, value: int) -> None:
97 def capacity(self) -> int:
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| /linux/drivers/usb/host/ |
| H A D | octeon-hcd.h | 1 /* SPDX-License-Identifier: GPL-2.0 */
6 * License. See the file "COPYING" in the main directory of this archive
11 * Copyright (c) 2003-2010 Cavium Networks (support@cavium.com). All rights
14 * Redistribution and use in source and binary forms, with or without
21 * * Redistributions in binary form must reproduce the above
23 * disclaimer in the documentation and/or other materials provided
33 * regulations, and may be subject to export or import regulations in other
104 * This register can be used to configure the core after power-on or a change in
105 * mode of operation. This register mainly contains AHB system-related
107 * core. In general, software need not know about this interface except to
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| /linux/net/netlabel/ |
| H A D | netlabel_unlabeled.h | 1 /* SPDX-License-Identifier: GPL-2.0-or-later */
9 * Author: Paul Moore <paul@paul-moore.com>
13 * (c) Copyright Hewlett-Packard Development Company, L.P., 2006
25 * This message is sent from an application to add a new static label for
44 * This message is sent from an application to remove an existing static
62 * This message can be sent either from an application or by the kernel in
63 * response to an application generated STATICLIST message. When sent by an
64 * application there is no payload and the NLM_F_DUMP flag should be set.
83 * This message is sent from an application to set the default static
101 * This message is sent from an application to remove the existing default
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| H A D | netlabel_mgmt.h | 1 /* SPDX-License-Identifier: GPL-2.0-or-later */
9 * Author: Paul Moore <paul@paul-moore.com>
13 * (c) Copyright Hewlett-Packard Development Company, L.P., 2006
26 * Sent by an application to add a domain mapping to the NetLabel system.
53 * Sent by an application to remove a domain mapping from the NetLabel
61 * This message can be sent either from an application or by the kernel in
62 * response to an application generated LISTALL message. When sent by an
63 * application there is no payload and the NLM_F_DUMP flag should be set.
90 * Sent by an application to set the default domain mapping for the NetLabel
107 * Sent by an application to remove the default domain mapping from the
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| /linux/Documentation/arch/arm/ |
| H A D | marvell.rst | 6 supported in mainline by the Linux kernel. As the Marvell families of
8 for a particular SoC is available in the Linux kernel. This document
9 tries to help in understanding where those SoCs are supported, and to
13 ------------
16 - 88F5082
17 - 88F5181 a.k.a Orion-1
18 - 88F5181L a.k.a Orion-VoIP
19 - 88F5182 a.k.a Orion-NAS
21 …- Datasheet: https://web.archive.org/web/20210124231420/http://csclub.uwaterloo.ca/~board/ts7800/M…
22 …- Programmer's User Guide: https://web.archive.org/web/20210124231536/http://csclub.uwaterloo.ca/~…
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| /linux/Documentation/networking/ |
| H A D | kcm.rst | 1 .. SPDX-License-Identifier: GPL-2.0
8 interface over TCP for generic application protocols. With KCM an application
9 can efficiently send and receive application protocol messages over TCP using
12 KCM implements an NxM multiplexor in the kernel as diagrammed below::
14 +------------+ +------------+ +------------+ +------------+
16 +------------+ +------------+ +------------+ +------------+
18 +-----------+ | | +----------+
20 +----------------------------------+
22 +----------------------------------+
24 +---------+ | | | ------------+
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| H A D | cdc_mbim.rst | 1 .. SPDX-License-Identifier: GPL-2.0
4 cdc_mbim - Driver for CDC MBIM Mobile Broadband modems
20 "NCM/MBIM function" as defined in section 3.2 of [1]) is affected
24 -----------
26 :Valid Range: N/Y (0-1)
45 not participate in the management of the function. This implies that a
46 userspace MBIM management application always is required to enable a
51 - mbimcli (included with the libmbim [3] library), and
52 - ModemManager [4]
55 management application:
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| H A D | af_xdp.rst | 1 .. SPDX-License-Identifier: GPL-2.0
20 XDP programs to redirect frames to a memory buffer in a user-space
21 application.
29 descriptor ring points to a data buffer in a memory area called a
36 The UMEM consists of a number of equally sized chunks. A descriptor in
43 FILL ring is used by the application to send down addr for the kernel
44 to fill in with RX packet data. References to these frames will then
45 appear in the RX ring once each packet has been received. The
60 corresponding two rings, sets the XDP_SHARED_UMEM flag in the bind
63 then receive frame addr references in its own RX ring that point to
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| H A D | tcp-thin.rst | 1 .. SPDX-License-Identifier: GPL-2.0
4 Thin-streams and TCP
7 A wide range of Internet-based services that use reliable transport
8 protocols display what we call thin-stream properties. This means
9 that the application sends data with such a low rate that the
11 effective. In time-dependent scenarios (like online games, control
15 dependency on the arrival of new data from the application to trigger
19 After analysing a large number of time-dependent interactive
22 lifespan. The combination of time-dependency and the fact that the
25 In order to reduce application-layer latency when packets are lost,
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| /linux/Documentation/ABI/testing/ |
| H A D | sysfs-driver-w1_therm | 6 Values shall be space separated and in the device range
7 (typical -55 degC to 125 degC), if not values will be trimmed
9 stored in a 8bit register in the device. Lowest value is
11 master level, refer to Documentation/w1/w1-generic.rst for
13 Users: any user space application which wants to communicate with
23 embedded in device EEPROM. Be aware that devices support
27 * 'restore': restore EEPROM data in device RAM
29 Users: any user space application which wants to communicate with
41 * '-xx': xx is kernel error when reading power status
43 Users: any user space application which wants to communicate with
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| /linux/Documentation/misc-devices/ |
| H A D | ibmvmc.rst | 1 .. SPDX-License-Identifier: GPL-2.0+
21 https://openpowerfoundation.org/wp-content/uploads/2016/05/LoPAPR_DRAFT_v11_24March2016_cmt1.pdf
27 Console (HMC) - based system management.
31 packaged as an external tower or rack-mounted personal computer. In a
33 processor-based systems.
35 Management Application
36 ----------------------
38 In the management partition, a management application exists which enables
41 State Transfer Application (REST API's).
43 The management application runs on a Linux logical partition on a
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| /linux/Documentation/admin-guide/ |
| H A D | sysfs-rules.rst | 1 Rules on how to access information in sysfs
4 The kernel-exported sysfs exports internal kernel implementation details
10 To minimize the risk of breaking users of sysfs, which are in most cases
11 low-level userspace applications, with a new kernel release, the users
12 of sysfs must follow some rules to use an as-abstract-as-possible way to
21 - Do not use libsysfs
23 offer any abstraction, it exposes all the kernel driver-core
24 implementation details in its own API. Therefore it is not better than
26 Also, it is not actively maintained, in the sense of reflecting the
29 violates many of the rules in this document.
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| /linux/Documentation/admin-guide/cgroup-v1/ |
| H A D | net_prio.rst | 9 Nominally, an application would set the priority of its traffic via the
12 1) The application may not have been coded to set this value
13 2) The priority of application traffic is often a site-specific administrative
14 decision rather than an application defined one.
20 # mount -t cgroup -onet_prio none /sys/fs/cgroup/net_prio
23 becomes visible at '/sys/fs/cgroup/net_prio'. This group includes all tasks in
24 the system. '/sys/fs/cgroup/net_prio/tasks' lists the tasks in this cgroup.
29 This file is read-only, and is simply informative. It contains a unique
35 from processes in this group and egressing the system on various interfaces.
36 It contains a list of tuples in the form <ifname priority>. Contents of this
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| /linux/Documentation/networking/device_drivers/wwan/ |
| H A D | iosm.rst | 1 .. SPDX-License-Identifier: GPL-2.0-only
3 .. Copyright (C) 2020-21 Intel Corporation
13 MBIM protocol [1]. Any front end application ( eg: Modem Manager) could easily
20 not play any role in managing the functionality. It is the job of a userspace
21 application to detect port enumeration and enable MBIM functionality.
23 Examples of few such userspace application are:
24 - mbimcli (included with the libmbim [2] library), and
25 - Modem Manager [3]
29 - open the MBIM control channel
30 - configure network connection settings
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| /linux/drivers/crypto/caam/ |
| H A D | qi.h | 1 /* SPDX-License-Identifier: GPL-2.0 */
5 * Copyright 2013-2016 Freescale Semiconductor, Inc.
6 * Copyright 2016-2017, 2020 NXP
19 /* Length of a single buffer in the QI driver memory cache */
25 * This is the request structure the driver application should fill while
31 * caam_qi_cbk - application's callback function invoked by the driver when the
34 * @status: completion status of request (0 - success, non-zero - error code)
45 * caam_drv_ctx - CAAM/QI backend driver context
55 * @req_fq: to-CAAM request frame queue
56 * @rsp_fq: from-CAAM response frame queue
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| /linux/drivers/hid/ |
| H A D | wacom_wac.h | 1 /* SPDX-License-Identifier: GPL-2.0-or-later */
96 #define WACOM_POWER_SUPPLY_STATUS_AUTO -1
160 #define WACOM_BATTERY_USAGE(f) (((f)->hid == HID_DG_BATTERYSTRENGTH) || \
161 ((f)->hid == WACOM_HID_WD_BATTERY_CHARGING) || \
162 ((f)->hid == WACOM_HID_WD_BATTERY_LEVEL))
164 #define WACOM_PAD_FIELD(f) (((f)->physical == HID_DG_TABLETFUNCTIONKEY) || \
165 ((f)->physical == WACOM_HID_WD_DIGITIZERFNKEYS) || \
166 ((f)->physical == WACOM_HID_WD_DIGITIZERINFO))
168 #define WACOM_PEN_FIELD(f) (((f)->logical == HID_DG_STYLUS) || \
169 ((f)->physical == HID_DG_STYLUS) || \
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| /linux/arch/mips/include/asm/octeon/ |
| H A D | cvmx-sysinfo.h | 7 * Copyright (c) 2003-2016 Cavium, Inc.
13 * This file is distributed in the hope that it will be useful, but
14 * AS-IS and WITHOUT ANY WARRANTY; without even the implied warranty
21 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
35 #include "cvmx-coremask.h"
39 * Structure describing application specific information.
44 * This structure must be provided with some fields set in order to
45 * use simple executive functions in other applications (Linux kernel,
46 * u-boot, etc.) The cvmx_sysinfo_minimal_initialize() function is
47 * provided to set the required values in these cases.
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| /linux/Documentation/bpf/libbpf/ |
| H A D | libbpf_overview.rst | 1 .. SPDX-License-Identifier: GPL-2.0
7 libbpf is a C-based library containing a BPF loader that takes compiled BPF
10 kernel hooks, allowing BPF application developers to focus only on BPF program
13 The following are the high-level features supported by libbpf:
15 * Provides high-level and low-level APIs for user space programs to interact
16 with BPF programs. The low-level APIs wrap all the bpf system call
17 functionality, which is useful when users need more fine-grained control
22 * Provides BPF-side APIS, including BPF helper definitions, BPF maps support,
24 * Supports BPF CO-RE mechanism, enabling BPF developers to write portable
28 This document will delve into the above concepts in detail, providing a deeper
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| /linux/drivers/scsi/mpt3sas/ |
| H A D | mpt3sas_ctl.h | 6 * Copyright (C) 2012-2014 LSI Corporation
7 * Copyright (C) 2013-2014 Avago Technologies
8 * (mailto: MPT-FusionLinux.pdl@avagotech.com)
15 * This program is distributed in the hope that it will be useful,
23 * LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT,
35 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
36 * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
42 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
64 #define MPT3_IOCTL_DEFAULT_TIMEOUT (10) /* in seconds */
113 * struct mpt3_ioctl_header - main header structure
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