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/Documentation/devicetree/bindings/input/touchscreen/
Dedt-ft5x06.yaml1 # SPDX-License-Identifier: GPL-2.0
3 ---
4 $id: http://devicetree.org/schemas/input/touchscreen/edt-ft5x06.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: FocalTech EDT-FT5x06 Polytouch
18 - Dmitry Torokhov <dmitry.torokhov@gmail.com>
21 - $ref: touchscreen.yaml#
22 - if:
27 - evervision,ev-ft5726
31 offset-x: true
[all …]
Dhycon,hy46xx.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
11 Glass: 0.3mm--4.0mm
12 PET/PMMA: 0.2mm--2.0mm
13 HY4613(B)-N048 < 6"
14 HY4614(B)-N068 7" .. 10.1"
15 HY4621-NS32 < 5"
16 HY4623-NS48 5.1" .. 7"
17 Glass: 0.3mm--8.0mm
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/Documentation/userspace-api/media/v4l/
Dmetafmt-vsp1-hgo.rst1 .. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
3 .. _v4l2-meta-fmt-vsp1-hgo:
9 Renesas R-Car VSP1 1-D Histogram Data
15 This format describes histogram data generated by the Renesas R-Car VSP1 1-D
20 computes the minimum, maximum and sum of all pixels as well as per-channel
24 three channels (RGB data only) or on the Y channel only (YCbCr only). It can
28 - In *64 bins normal mode*, the HGO operates on the three channels independently
29 to compute three 64-bins histograms. RGB, YCbCr and HSV image formats are
31 - In *64 bins maximum mode*, the HGO operates on the maximum of the (R, G, B)
32 channels to compute a single 64-bins histogram. Only the RGB image format is
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Dcolorspaces-details.rst1 .. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
8 .. _col-smpte-170m:
15 ``V4L2_XFER_FUNC_709``. The default Y'CbCr encoding is
16 ``V4L2_YCBCR_ENC_601``. The default Y'CbCr quantization is limited
20 .. flat-table:: SMPTE 170M Chromaticities
21 :header-rows: 1
22 :stub-columns: 0
25 * - Color
26 - x
27 - y
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/Documentation/devicetree/bindings/input/
Dsyna,rmi4.yaml1 # SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Jason A. Donenfeld <Jason@zx2c4.com>
11 - Matthias Schiffer <matthias.schiffer@ew.tq-group.com
12 - Vincent Huang <vincent.huang@tw.synaptics.com>
22 - syna,rmi4-i2c
23 - syna,rmi4-spi
28 '#address-cells':
31 '#size-cells':
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/Documentation/core-api/
Dthis_cpu_ops.rst14 this_cpu operations add a per cpu variable offset to the processor
19 the offset and the operation on the data. Therefore it is not
24 Read-modify-write operations are of particular interest. Frequently
65 ------------------------------------
101 int *y;
105 y = per_cpu_ptr(&x, cpu);
106 (*y)++;
128 ------------------
132 y = this_cpu_ptr(&x)
134 Takes the offset of a per cpu variable (&x !) and returns the address
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/Documentation/ABI/testing/
Dsysfs-bus-iio3 Contact: linux-iio@vger.kernel.org
11 Contact: linux-iio@vger.kernel.org
25 Contact: linux-iio@vger.kernel.org
31 Contact: linux-iio@vger.kernel.org
38 Contact: linux-iio@vger.kernel.org
44 The contents of the label are free-form, but there are some
51 * "proximity-wifi"
52 * "proximity-lte"
53 * "proximity-wifi-lte"
54 * "proximity-wifi-left"
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Dsysfs-bus-dax1 What: /sys/bus/dax/devices/daxX.Y/align
10 What: /sys/bus/dax/devices/daxX.Y/mapping
16 device. Specified in the format <start>-<end>.
18 What: /sys/bus/dax/devices/daxX.Y/mapping[0..N]/start
19 What: /sys/bus/dax/devices/daxX.Y/mapping[0..N]/end
20 What: /sys/bus/dax/devices/daxX.Y/mapping[0..N]/page_offset
30 'page_offset' attribute indicates the offset of the current
33 What: /sys/bus/dax/devices/daxX.Y/resource
43 What: /sys/bus/dax/devices/daxX.Y/size
53 What: /sys/bus/dax/devices/daxX.Y/numa_node
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Dsysfs-bus-iio-health-afe440x6 Get measured values from the ADC for these stages. Y is the
17 Note that channels 5 and 6 represent LED2-ALED2 and LED1-ALED1
19 calculated difference in the value of stage 1 - 2 and 3 - 4.
20 The values are expressed in 24-bit twos complement.
29 Get and set the offset cancellation DAC setting for these
30 stages. The values are expressed in 5-bit sign-magnitude.
/Documentation/admin-guide/gpio/
Dgpio-mockup.rst1 .. SPDX-License-Identifier: GPL-2.0-only
8 This module has been obsoleted by the more flexible gpio-sim.rst.
14 The GPIO Testing Driver (gpio-mockup) provides a way to create simulated GPIO
20 --------------------------------------------
22 When loading the gpio-mockup driver a number of parameters can be passed to the
28 pairs. Each pair defines the base GPIO number (non-negative integer)
30 is -1, the gpiolib will assign it automatically. while the following
33 Example: gpio_mockup_ranges=-1,8,-1,16,405,409
44 The name format is: gpio-mockup-X-Y where X is mockup chip's ID
45 and Y is the line offset.
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/Documentation/admin-guide/kdump/
Dkdump.rst2 Documentation for Kdump - The kexec-based Crash Dumping Solution
11 Kdump uses kexec to quickly boot to a dump-capture kernel whenever a
14 the reboot and is accessible to the dump-capture kernel.
24 the dump-capture kernel. This ensures that ongoing Direct Memory Access
25 (DMA) from the system kernel does not corrupt the dump-capture kernel.
26 The kexec -p command loads the dump-capture kernel into this reserved
47 passed to the dump-capture kernel through the elfcorehdr= boot
49 when using the elfcorehdr=[size[KMG]@]offset[KMG] syntax.
51 With the dump-capture kernel, you can access the memory image through
52 /proc/vmcore. This exports the dump as an ELF-format file that you can
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/Documentation/dev-tools/
Dcheckuapi.rst1 .. SPDX-License-Identifier: GPL-2.0-only
7 The UAPI checker (``scripts/check-uapi.sh``) is a shell script which
8 checks UAPI header files for userspace backwards-compatibility across
14 This section will describe the options with which ``check-uapi.sh``
19 check-uapi.sh [-b BASE_REF] [-p PAST_REF] [-j N] [-l ERROR_LOG] [-i] [-q] [-v]
23 -b BASE_REF Base git reference to use for comparison. If unspecified or empty,
26 -p PAST_REF Compare BASE_REF to PAST_REF (e.g. -p v6.1). If unspecified or empty,
29 -j JOBS Number of checks to run in parallel (default: number of CPU cores).
30 -l ERROR_LOG Write error log to file (default: no error log is generated).
31 -i Ignore ambiguous changes that may or may not break UAPI compatibility.
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/Documentation/driver-api/media/drivers/
Dcx2341x-devel.rst1 .. SPDX-License-Identifier: GPL-2.0
7 -----------------------
12 .. note:: the memory long words are little-endian ('intel format').
21 .. code-block:: none
23 ivtvctl -O min=0x02000000,max=0x020000ff
26 register space :-).
35 .. code-block:: none
37 0x00000000-0x00ffffff Encoder memory space
38 0x00000000-0x0003ffff Encode.rom
39 ???-??? MPEG buffer(s)
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/Documentation/arch/powerpc/
Dkaslr-booke32.rst1 .. SPDX-License-Identifier: GPL-2.0
14 map or copy kernel to a proper place and relocate. Freescale Book-E
22 pass entropy via the /chosen/kaslr-seed node in device tree.
27 16K aligned offset inside the 64M zone to put the kernel in::
31 |--> 64M <--|
33 +---------------+ +----------------+---------------+
35 +---------------+ +----------------+---------------+
37 |-----> offset <-----|
41 To enable KASLR, set CONFIG_RANDOMIZE_BASE = y. If KASLR is enabled and you
Dpapr_hcalls.rst1 .. SPDX-License-Identifier: GPL-2.0
4 Hypercall Op-codes (hcalls)
10 Virtualization on 64-bit Power Book3S Platforms is based on the PAPR
11 specification [1]_ which describes the run-time environment for a guest
15 - **IBM PowerVM (PHYP)**: IBM's proprietary hypervisor that supports AIX,
16 IBM-i and Linux as supported guests (termed as Logical Partitions
19 - **Qemu/KVM**: Supports PPC64 linux guests running on a PPC64 linux host.
39 and any in-arguments for the hcall are provided in registers *r4-r12*. If values
41 in Big-endian byte order.
45 out values are returned in registers *r4-r12*. Again like in case of in-arguments,
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/Documentation/userspace-api/
Ddma-buf-alloc-exchange.rst1 .. SPDX-License-Identifier: GPL-2.0
2 .. Copyright 2021-2023 Collabora Ltd.
9 support for sharing pixel-buffer allocations between processes, devices, and
12 approach this sharing for two-dimensional image data.
25 Conceptually a two-dimensional array of pixels. The pixels may be stored
30 A span along a single y-axis value, e.g. from co-ordinates (0,100) to
37 A span along a single x-axis value, e.g. from co-ordinates (100,0) to
46 A two-dimensional array of some or all of an image's color and alpha
51 more color channels values, e.g. R, G and B, or Y, Cb and Cr. May also
80 A value that denotes the relationship between pixel-location co-ordinates
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/Documentation/translations/sp_SP/process/
Dcoding-style.rst1 .. include:: ../disclaimer-sp.rst
3 :Original: :ref:`Documentation/process/coding-style.rst <submittingpatches>`
12 del kernel Linux. El estilo de código es muy personal y no **forzaré** mi
14 mantener, y preferiría que para la mayoría de otras cosas también. Por
18 GNU, y NO leerlo. Quémelos, es un gran gesto simbólico.
24 -----------
26 Las tabulaciones tienen 8 caracteres y, por lo tanto, las sangrías también
28 de 4 (¡o incluso 2!) caracteres de longitud, y eso es similar a tratar de
32 comienza y termina un bloque de control. Especialmente, cuando ha estado
37 el código se mueva demasiado a la derecha y dificulta la lectura en una
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/Documentation/input/devices/
Diforce-protocol.rst7 Home page at `<http://web.archive.org/web/*/http://www.esil.univ-mrs.fr>`_
16 specify force effects to I-Force 2.0 devices. None of this information comes
25 send data to your I-Force device based on what you read in this document.
30 All values are hexadecimal with big-endian encoding (msb on the left). Beware,
31 values inside packets are encoded using little-endian. Bytes whose roles are
35 ------------------------
64 00 X-Axis lsb
65 01 X-Axis msb
66 02 Y-Axis lsb, or gas pedal for a wheel
67 03 Y-Axis msb, or brake pedal for a wheel
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Dsentelic.rst8 :Copyright: |copy| 2002-2011 Sentelic Corporation.
10 :Last update: Dec-07-2011
28 BYTE |---------------|BYTE |---------------|BYTE|---------------|BYTE|---------------|
29 1 |Y|X|y|x|1|M|R|L| 2 |X|X|X|X|X|X|X|X| 3 |Y|Y|Y|Y|Y|Y|Y|Y| 4 | | |B|F|W|W|W|W|
30 |---------------| |---------------| |---------------| |---------------|
32 Byte 1: Bit7 => Y overflow
34 Bit5 => Y sign bit
40 Byte 2: X Movement(9-bit 2's complement integers)
41 Byte 3: Y Movement(9-bit 2's complement integers)
43 valid values, -8 ~ +7
[all …]
/Documentation/trace/coresight/
Dcoresight-perf.rst1 .. SPDX-License-Identifier: GPL-2.0
4 CoreSight - Perf
15 perf record -e cs_etm//u testbinary
22 perf report --stdio --dump -i perf.data
26 … [0x30]: PERF_RECORD_AUXTRACE size: 0x11dd0 offset: 0 ref: 0x1b614fc1061b0ad1 idx: 0 tid: 5312…
48 for the support such as libopencsd and libopencsd-dev or download it
60 ------------------------
65 CONFIG_CORESIGHT=y
70 CONFIG_CORESIGHT_LINKS_AND_SINKS=y
71 CONFIG_CORESIGHT_LINK_AND_SINK_TMC=y
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/Documentation/iio/
Dadis16480.rst1 .. SPDX-License-Identifier: GPL-2.0
58 +------------------------------------------+-------------------------------------------------------…
59 | 3-Axis Magnetometer related device files | Description …
60 +------------------------------------------+-------------------------------------------------------…
62 +------------------------------------------+-------------------------------------------------------…
63 | in_magn_x_calibbias | Calibration offset for the X-axis magnetometer channel…
64 +------------------------------------------+-------------------------------------------------------…
65 | in_magn_x_filter_low_pass_3db_frequency | Bandwidth for the X-axis magnetometer channel. …
66 +------------------------------------------+-------------------------------------------------------…
67 | in_magn_x_raw | Raw X-axis magnetometer channel value. …
[all …]
Dadis16475.rst1 .. SPDX-License-Identifier: GPL-2.0
62 +-------------------------------------------+------------------------------------------------------…
63 | 3-Axis Accelerometer related device files | Description …
64 +-------------------------------------------+------------------------------------------------------…
66 +-------------------------------------------+------------------------------------------------------…
67 | in_accel_x_calibbias | Calibration offset for the X-axis accelerometer chann…
68 +-------------------------------------------+------------------------------------------------------…
69 | in_accel_x_raw | Raw X-axis accelerometer channel value. …
70 +-------------------------------------------+------------------------------------------------------…
71 | in_accel_y_calibbias | Calibration offset for the Y-axis accelerometer chann…
[all …]
/Documentation/images/
Dlogo.svg1 <?xml version="1.0" encoding="UTF-8" standalone="no"?>
5 xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
9 xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
11 inkscape:export-ydpi="300"
12 inkscape:export-xdpi="300"
13 inkscape:export-filename="./tux-large.png"
15 inkscape:version="1.1-dev (79c9cd5f54, 2020-05-04)"
25 inkscape:guide-bbox="true"
27 fit-margin-bottom="0"
28 fit-margin-right="0"
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/Documentation/trace/
Duprobetracer.rst2 Uprobe-tracer: Uprobe-based Event Tracing
9 --------
11 To enable this feature, build your kernel with CONFIG_UPROBE_EVENTS=y.
13 Similar to the kprobe-event tracer, this doesn't need to be activated via
18 However unlike kprobe-event tracer, the uprobe event interface expects the
19 user to calculate the offset of the probepoint in the object.
26 -------------------------
29 p[:[GRP/][EVENT]] PATH:OFFSET [FETCHARGS] : Set a uprobe
30 r[:[GRP/][EVENT]] PATH:OFFSET [FETCHARGS] : Set a return uprobe (uretprobe)
31 p[:[GRP/][EVENT]] PATH:OFFSET%return [FETCHARGS] : Set a return uprobe (uretprobe)
[all …]
/Documentation/i2c/
Dslave-testunit-backend.rst1 .. SPDX-License-Identifier: GPL-2.0
7 by Wolfram Sang <wsa@sang-engineering.com> in 2020
11 easy to obtain). Examples include multi-master testing, and SMBus Host Notify
21 # echo "slave-testunit 0x1030" > /sys/bus/i2c/devices/i2c-0/new_device
30 compatible = "slave-testunit";
39 When writing, the device consists of 4 8-bit registers and, except for some
43 .. csv-table::
44 :header: "Offset", "Name", "Description"
51 Using 'i2cset' from the i2c-tools package, the generic command looks like::
53 # i2cset -y <bus_num> <testunit_address> <CMD> <DATAL> <DATAH> <DELAY> i
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