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/Documentation/netlink/
Dnetlink-raw.yaml1 # SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause)
3 ---
4 $id: http://kernel.org/schemas/netlink/netlink-raw.yaml#
5 $schema: https://json-schema.org/draft-07/schema
12 len-or-define:
14 pattern: ^[0-9A-Za-z_-]+( - 1)?$
21 required: [ name, doc, attribute-sets, operations ]
31 enum: [ netlink-raw ] # Trim
32 # Start netlink-raw
34 description: Protocol number to use for netlink-raw
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Dgenetlink-legacy.yaml1 # SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause)
3 ---
4 $id: http://kernel.org/schemas/netlink/genetlink-legacy.yaml#
5 $schema: https://json-schema.org/draft-07/schema
12 len-or-define:
14 pattern: ^[0-9A-Za-z_-]+( - 1)?$
16 len-or-limit:
17 # literal int or limit based on fixed-width type e.g. u8-min, u16-max, etc.
19 pattern: ^[su](8|16|32|64)-(min|max)$
26 required: [ name, doc, attribute-sets, operations ]
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Dgenetlink-c.yaml1 # SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause)
3 ---
4 $id: http://kernel.org/schemas/netlink/genetlink-c.yaml#
5 $schema: https://json-schema.org/draft-07/schema
12 len-or-define:
14 pattern: ^[0-9A-Za-z_-]+( - 1)?$
16 len-or-limit:
17 # literal int or limit based on fixed-width type e.g. u8-min, u16-max, etc.
19 pattern: ^[su](8|16|32|64)-(min|max)$
26 required: [ name, doc, attribute-sets, operations ]
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/Documentation/userspace-api/media/v4l/
Dfunc-mmap.rst1 .. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
4 .. _func-mmap:
13 v4l2-mmap - Map device memory into application address space
18 .. code-block:: c
23 .. c:function:: void *mmap( void *start, size_t length, int prot, int flags, int fd, off_t offset )
28 ``start``
30 When the ``MAP_FIXED`` flag is specified, ``start`` must be a
36 Length of the memory area to map. This must be the same value as
39 single-planar API, and the same value as returned by the driver in
41 the multi-planar API.
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Dpixfmt-sdr-pcu16be.rst1 .. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
3 .. _V4L2-SDR-FMT-PCU16BE:
9 Planar complex unsigned 16-bit big endian IQ sample
15 number consist of two parts called In-phase and Quadrature (IQ). Both I
18 padded with 0. I value starts first and Q value starts at an offset
21 value.
26 .. flat-table::
27 :header-rows: 1
28 :stub-columns: 0
30 * - Offset:
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Dpixfmt-sdr-pcu18be.rst1 .. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
3 .. _V4L2-SDR-FMT-PCU18BE:
9 Planar complex unsigned 18-bit big endian IQ sample
15 number consist of two parts called In-phase and Quadrature (IQ). Both I
18 padded with 0. I value starts first and Q value starts at an offset
21 value.
26 .. flat-table::
27 :header-rows: 1
28 :stub-columns: 0
30 * - Offset:
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Dpixfmt-sdr-pcu20be.rst1 .. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
3 .. _V4L2-SDR-FMT-PCU20BE:
9 Planar complex unsigned 20-bit big endian IQ sample
15 number consist of two parts called In-phase and Quadrature (IQ). Both I
18 padded with 0. I value starts first and Q value starts at an offset
21 value.
26 .. flat-table::
27 :header-rows: 1
28 :stub-columns: 0
30 * - Offset:
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Dfunc-munmap.rst1 .. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
4 .. _func-munmap:
13 v4l2-munmap - Unmap device memory
18 .. code-block:: c
23 .. c:function:: int munmap( void *start, size_t length )
28 ``start``
33 Length of the mapped buffer. This must be the same value as given to
36 single-planar API and in the struct
38 multi-planar API.
46 Return Value
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Dpixfmt-sdr-cs14le.rst1 .. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
3 .. _V4L2-SDR-FMT-CS14LE:
9 Complex signed 14-bit little endian IQ sample
16 number consist two parts, called In-phase and Quadrature (IQ). Both I
17 and Q are represented as a 14 bit signed little endian number. I value
18 comes first and Q value after that. 14 bit value is stored in 16 bit
25 .. flat-table::
26 :header-rows: 0
27 :stub-columns: 0
29 * - start + 0:
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Dpixfmt-sdr-cs08.rst1 .. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
3 .. _v4l2-sdr-fmt-cs8:
9 Complex signed 8-bit IQ sample
16 number consist two parts, called In-phase and Quadrature (IQ). Both I
17 and Q are represented as a 8 bit signed number. I value comes first and
18 Q value after that.
23 .. flat-table::
24 :header-rows: 0
25 :stub-columns: 0
27 * - start + 0:
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Dpixfmt-sdr-cu08.rst1 .. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
3 .. _v4l2-sdr-fmt-cu8:
9 Complex unsigned 8-bit IQ sample
16 number consist two parts, called In-phase and Quadrature (IQ). Both I
17 and Q are represented as a 8 bit unsigned number. I value comes first
18 and Q value after that.
23 .. flat-table::
24 :header-rows: 0
25 :stub-columns: 0
27 * - start + 0:
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Dpixfmt-sdr-cu16le.rst1 .. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
3 .. _V4L2-SDR-FMT-CU16LE:
10 Complex unsigned 16-bit little endian IQ sample
17 number consist two parts, called In-phase and Quadrature (IQ). Both I
18 and Q are represented as a 16 bit unsigned little endian number. I value
19 comes first and Q value after that.
25 .. flat-table::
26 :header-rows: 0
27 :stub-columns: 0
29 * - start + 0:
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Dpixfmt-tch-td08.rst1 .. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
3 .. _V4L2-TCH-FMT-DELTA-TD08:
11 8-bit signed Touch Delta
18 Delta values may range from -128 to 127. Typically the values will vary through
19 a small range depending on whether the sensor is touched or not. The full value
28 .. flat-table::
29 :header-rows: 0
30 :stub-columns: 0
33 * - start + 0:
34 - D'\ :sub:`00`
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Dvidioc-overlay.rst1 .. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
13 VIDIOC_OVERLAY - Start or stop video overlay
35 Applications call :ref:`VIDIOC_OVERLAY` to start or stop the overlay. It
37 application to stop overlay, to one to start.
43 Return Value
46 On success 0 is returned, on error -1 and the ``errno`` variable is set
48 :ref:`Generic Error Codes <gen-errors>` chapter.
/Documentation/filesystems/
Dseq_file.rst1 .. SPDX-License-Identifier: GPL-2.0
10 https://lwn.net/Articles/driver-porting/
16 Virtual files can provide human-readable output that is easy to get at
23 string. But life gets trickier if the output is long - anything greater
26 position within the virtual file - that position is, likely as not, in the
68 - entry = create_proc_entry("sequence", 0, NULL);
69 - if (entry)
70 - entry->proc_fops = &ct_file_ops;
79 is able to move to a specific position - like the file they implement,
81 in whatever way is convenient - the iterator need only exist
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/Documentation/userspace-api/media/dvb/
Ddmx-munmap.rst1 .. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
4 .. _dmx-munmap:
13 dmx-munmap - Unmap device memory
20 .. code-block:: c
25 .. c:function:: int munmap( void *start, size_t length )
30 ``start``
35 Length of the mapped buffer. This must be the same value as given to
44 Return Value
47 On success :c:func:`munmap()` returns 0, on failure -1 and the
51 The ``start`` or ``length`` is incorrect, or no buffers have been
Ddmx-mmap.rst1 .. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
4 .. _dmx-mmap:
13 dmx-mmap - Map device memory into application address space
20 .. code-block:: c
25 .. c:function:: void *mmap( void *start, size_t length, int prot, int flags, int fd, off_t offset )
30 ``start``
32 When the ``MAP_FIXED`` flag is specified, ``start`` must be a
57 ``start`` must be a multiple of the pagesize. Use of this option is
62 other (e. g. child-) processes.
82 application address space, preferably at address ``start``. This latter
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/Documentation/netlink/specs/
Dhandshake.yaml1 # SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause)
15 -
17 name: handler-class
18 value-start: 0
20 -
22 name: msg-type
23 value-start: 0
25 -
28 value-start: 0
31 attribute-sets:
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/Documentation/ABI/testing/
Dsysfs-driver-intel-rapid-start1 What: /sys/bus/acpi/intel-rapid-start/wakeup_events
10 These values are ORed together. For example, a value of 3
15 What: /sys/bus/acpi/intel-rapid-start/wakeup_time
21 This value is in minutes.
Dsysfs-driver-zynqmp-fpga1 What: /sys/bus/platform/drivers/zynqmp_fpga_manager/firmware:zynqmp-firmware:pcap/status
6 Read returns a hexadecimal value that tells the current status
7 of the FPGA device. Each bit position in the status value is
9 https://docs.xilinx.com/v/u/en-US/ug570-ultrascale-configuration
24 BIT(4) 0: Start-up sequence has not finished
25 1: Start-up sequence has finished
27 BIT(5) 0: All I/Os are placed in High-Z state
30 BIT(6) 0: Flip-flops and block RAM are write disabled
31 1: Flip-flops and block RAM are write enabled
41 BIT(12) Value on INIT_B_PIN pin
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/Documentation/leds/
Dledtrig-transient.rst8 to be off. The delay_on value specifies the time period an LED should stay
9 in on state, followed by a delay_off value that specifies how long the LED
38 start functioning again.
56 non-transient state. When driver gets suspended, irrespective of the transient
71 - duration allows setting timer value in msecs. The initial value is 0.
72 - activate allows activating and deactivating the timer specified by
73 duration as needed. The initial and default value is 0. This will allow
75 - state allows user to specify a transient state to be held for the specified
79 - one shot timer activate mechanism.
81 default value is zero when transient trigger is enabled,
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/Documentation/devicetree/bindings/iio/adc/
Dti,am3359-adc.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/iio/adc/ti,am3359-adc.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Miquel Raynal <miquel.raynal@bootlin.com>
15 - enum:
16 - ti,am3359-adc
17 - ti,am4372-adc
18 - items:
19 - enum:
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/Documentation/gpu/rfc/
Di915_vm_bind.h1 /* SPDX-License-Identifier: MIT */
32 * Flag to opt-in for VM_BIND mode of binding during VM creation.
51 * struct drm_i915_gem_timeline_fence - An input or output timeline fence.
74 #define __I915_TIMELINE_FENCE_UNKNOWN_FLAGS (-(I915_TIMELINE_FENCE_SIGNAL << 1))
77 * @value: A point in the timeline.
78 * Value must be 0 for a binary drm_syncobj. A Value of 0 for a
82 __u64 value; member
86 * struct drm_i915_gem_vm_bind - VA to object mapping to bind.
96 * The @start, @offset and @length must be 4K page aligned. However the DG2 has
98 * platform, for binding device local-memory objects, the @start, @offset and
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/Documentation/gpu/
Dmsm-crash-dump.rst11 Each entry is in the form key: value. Sections headers will not have a value
13 Each section might have multiple array entries the start of which is designated
14 by a (-).
17 --------
38 rbbm-status
39 The current value of RBBM_STATUS which shows what top level GPU
52 last-fence
55 retired-fence
90 Byte offset of the register from the start of the
93 value
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/Documentation/watchdog/
Dwatchdog-kernel-api.rst5 Last reviewed: 12-Feb-2013
10 ------------
14 file: Documentation/watchdog/watchdog-api.rst .
24 -------
83 * timeout: the watchdog timer's timeout value (in seconds).
86 * pretimeout: the watchdog timer's pretimeout value (in seconds).
87 * min_timeout: the watchdog timer's minimum timeout value (in seconds).
88 If set, the minimum configurable value for 'timeout'.
89 * max_timeout: the watchdog timer's maximum timeout value (in seconds),
90 as seen from userspace. If set, the maximum configurable value for
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