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/Documentation/userspace-api/media/v4l/
Dpixfmt-srggb10-ipu3.rst1 .. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
3 .. _v4l2-pix-fmt-ipu3-sbggr10:
4 .. _v4l2-pix-fmt-ipu3-sgbrg10:
5 .. _v4l2-pix-fmt-ipu3-sgrbg10:
6 .. _v4l2-pix-fmt-ipu3-srggb10:
13 10-bit Bayer formats
24 In other respects this format is similar to :ref:`V4L2-PIX-FMT-SRGGB10`.
36 .. flat-table::
38 * - start + 0:
39 - B\ :sub:`0000low`
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Dpixfmt-packed-yuv.rst1 .. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
3 .. _packed-yuv:
15 - In all the tables that follow, bit 7 is the most significant bit in a byte.
16 - 'Y', 'Cb' and 'Cr' denote bits of the luma, blue chroma (also known as
30 seen in a 16-bit word, which is then stored in memory in little endian byte
32 format stores a pixel in a 16-bit word [15:0] laid out at as [Y'\ :sub:`4-0`
33 Cb\ :sub:`5-0` Cr\ :sub:`4-0`], and stored in memory in two bytes,
34 [Cb\ :sub:`2-0` Cr\ :sub:`4-0`] followed by [Y'\ :sub:`4-0` Cb\ :sub:`5-3`].
44 .. flat-table:: Packed YUV 4:4:4 Image Formats (less than 8bpc)
45 :header-rows: 2
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Dpixfmt-rgb.rst1 .. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
3 .. _pixfmt-rgb:
22 (including capture queues of mem-to-mem devices) fill the alpha component in
25 but can set the alpha bit to a user-configurable value, the
26 :ref:`V4L2_CID_ALPHA_COMPONENT <v4l2-alpha-component>` control is used to
31 :ref:`Output <output>` devices (including output queues of mem-to-mem devices
44 - In all the tables that follow, bit 7 is the most significant bit in a byte.
45 - 'r', 'g' and 'b' denote bits of the red, green and blue components
54 based on the order of the RGB components as seen in a 8-, 16- or 32-bit word,
57 for each component. For instance, the RGB565 format stores a pixel in a 16-bit
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Dpixfmt-packed-hsv.rst1 .. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
3 .. _packed-hsv:
13 depends on the hsv-encoding used, see :ref:`colorspaces`.
29 .. _packed-hsv-formats:
31 .. flat-table:: Packed HSV Image Formats
32 :header-rows: 2
33 :stub-columns: 0
35 * - Identifier
36 - Code
37 -
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Dsubdev-formats.rst1 .. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
3 .. _v4l2-mbus-format:
14 .. flat-table:: struct v4l2_mbus_framefmt
15 :header-rows: 0
16 :stub-columns: 0
17 :widths: 1 1 2
19 * - __u32
20 - ``width``
21 - Image width in pixels.
22 * - __u32
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Dpixfmt-srggb14p.rst1 .. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
3 .. _V4L2-PIX-FMT-SRGGB14P:
4 .. _v4l2-pix-fmt-sbggr14p:
5 .. _v4l2-pix-fmt-sgbrg14p:
6 .. _v4l2-pix-fmt-sgrbg14p:
17 14-bit packed Bayer formats
29 Each n-pixel row contains n/2 green samples and n/2 blue or red samples,
30 with alternating green-red and green-blue rows. They are conventionally
45 .. flat-table::
46 :header-rows: 0
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/Documentation/translations/zh_CN/core-api/
Dpacking.rst1 .. SPDX-License-Identifier: GPL-2.0+
3 .. include:: ../disclaimer-zh_CN.rst
5 :Original: Documentation/core-api/packing.rst
22 --------
42 --------
46 - 将一个CPU可使用的数字打包到内存缓冲区中(具有硬件约束/特殊性)。
47 - 将内存缓冲区(具有硬件约束/特殊性)解压缩为一个CPU可使用的数字。
54 以下示例介绍了打包u64字段的内存布局。打包缓冲区中的字节偏移量始终默认为0,1...7
57 1. 通常情况下(无特殊性),我们会这样做:
62 7 6 5 4
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/Documentation/hwmon/
Dnct6775.rst19 * Nuvoton NCT5572D/NCT6771F/NCT6772F/NCT6775F/W83677HG-I
83 * Nuvoton NCT6796D-S/NCT6799D-R
93 Guenter Roeck <linux@roeck-us.net>
96 -----------
114 either 1 degC or 0.5 degC, depending on the temperature source and
121 NCT6775F, fan readings can be divided by a programmable divider (1, 2, 4, 8,
138 The mode works for fan1-fan5.
141 ----------------
143 pwm[1-7]
144 - this file stores PWM duty cycle or DC value (fan speed) in range:
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Dlt7182s.rst1 .. SPDX-License-Identifier: GPL-2.0
12 Addresses scanned: -
16 Author: Guenter Roeck <linux@roeck-us.net>
20 -----------
22 LT7182S is a Dual Channel 6A, 20V PolyPhase Step-Down Silent Switcher with
27 -----------
36 # echo lt7182s 0x4f > /sys/bus/i2c/devices/i2c-4/new_device
42 ----------------
45 curr[1-2]_label "iin[12]"
46 curr[1-2]_input Measured input current
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Dgxp-fan-ctrl.rst1 .. SPDX-License-Identifier: GPL-2.0-only
3 Kernel driver gxp-fan-ctrl
14 -----------
16 gxp-fan-ctrl is a driver which provides fan control for the hpe gxp soc.
22 ----------------
25 pwm[0-7] Fan 0 to 7 respective PWM value (0-255)
26 fan[0-7]_fault Fan 0 to 7 respective fault status: 1 fail, 0 ok
27 fan[0-7]_enable Fan 0 to 7 respective enabled status: 1 enabled, 0 disabled
/Documentation/input/devices/
Delantech.rst4 Copyright (C) 2007-2008 Arjan Opmeer <arjan@opmeer.net>
6 Extra information for hardware version 1 found and
15 1. Introduction
18 4. Hardware version 1
25 5.2.1 Parity checking and packet re-synchronization
31 6.2.1 One/Three finger touch
33 7. Hardware version 4
36 7.2.1 Status packet
42 8.2.1 Status Packet
50 hardware versions unimaginatively called version 1,version 2, version 3
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Dsentelic.rst8 :Copyright: |copy| 2002-2011 Sentelic Corporation.
10 :Last update: Dec-07-2011
18 1. Set sample rate to 200;
26 Packet 1
27 Bit 7 6 5 4 3 2 1 0 7 6 5 4 3 2 1 0 7 6 5 4 3 2 1 0 7 6 5 4 3 2 1 0
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
36 Bit3 => 1
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/Documentation/core-api/
Dpacking.rst6 -----------------
10 One can memory-map a pointer to a carefully crafted struct over the hardware
23 were performed byte-by-byte. Also the code can easily get cluttered, and the
24 high-level idea might get lost among the many bit shifts required.
25 Many drivers take the bit-shifting approach and then attempt to reduce the
30 ------------
34 - Packing a CPU-usable number into a memory buffer (with hardware
36 - Unpacking a memory buffer (which has hardware constraints/quirks)
37 into a CPU-usable number.
44 perspective, bit 63 always means bit offset 7 of byte 7, albeit only
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/Documentation/gpu/amdgpu/
Dapu-asic-info-table.csv5 …/ AMD Ryzen Embedded V1*/R1* with Radeon Vega Gfx, RAVEN2, DCN 1.0, 9.2.2, VCN 1.0.1, 4.1.1, 10.0.1
6 SteamDeck, VANGOGH, DCN 3.0.1, 10.3.1, VCN 3.1.0, 5.2.1, 11.5.0
7 Ryzen 5000 series / Ryzen 7x30 series, GREEN SARDINE / Cezanne / Barcelo / Barcelo-R, DCN 2.1, 9.3,…
8 Ryzen 6000 series / Ryzen 7x35 series / Ryzen 7x36 series, YELLOW CARP / Rembrandt / Rembrandt-R, 3…
11 Ryzen 7x45 series (FL1), Dragon Range, 3.1.5, 10.3.6, 3.1.2, 5.2.6, 13.0.5
12 Ryzen 7x20 series, Mendocino, 3.1.6, 10.3.7, 3.1.1, 5.2.7, 13.0.8
13 Ryzen 7x40 series, Phoenix, 3.1.4, 11.0.1 / 11.0.4, 4.0.2, 6.0.1, 13.0.4 / 13.0.11
14 Ryzen 8x40 series, Hawk Point, 3.1.4, 11.0.1 / 11.0.4, 4.0.2, 6.0.1, 13.0.4 / 13.0.11
/Documentation/devicetree/bindings/leds/
Dleds-netxbig.txt5 - compatible: "lacie,netxbig-leds".
6 - gpio-ext: Phandle for the gpio-ext bus.
9 - timers: Timer array. Each timer entry is represented by three integers:
10 Mode (gpio-ext bus), delay_on and delay_off.
12 Each LED is represented as a sub-node of the netxbig-leds device.
14 Required sub-node properties:
15 - mode-addr: Mode register address on gpio-ext bus.
16 - mode-val: Mode to value mapping. Each entry is represented by two integers:
17 A mode and the corresponding value on the gpio-ext bus.
18 - bright-addr: Brightness register address on gpio-ext bus.
[all …]
/Documentation/devicetree/bindings/sound/
Dnuvoton,nau8821.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Seven Lee <wtli@nuvoton.com>
13 - $ref: dai-common.yaml#
20 maxItems: 1
23 maxItems: 1
25 nuvoton,jkdet-enable:
29 nuvoton,jkdet-pull-enable:
30 description: Enable JKDET pin pull. If set - pin pull enabled,
[all …]
/Documentation/i2c/
Di2c-sysfs.rst1 .. SPDX-License-Identifier: GPL-2.0
18 useful and essential to use ``i2c-tools`` for the purpose of development and
22 ---------------
28 -------------
30 1. Knowledge of general Linux shell file system commands and operations.
41 start with ``i2c-`` are I2C buses, which may be either physical or logical. The
48 0-0008 0-0061 1-0028 3-0043 4-0036 4-0041 i2c-1 i2c-3
49 0-000c 0-0066 2-0049 4-000b 4-0040 i2c-0 i2c-2 i2c-4
51 ``i2c-2`` is an I2C bus whose number is 2, and ``2-0049`` is an I2C device
60 -----------------------------
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/Documentation/ABI/testing/
Dsysfs-driver-toshiba_acpi1 What: /sys/devices/LNXSYSTM:00/LNXSYBUS:00/TOS{1900,620{0,7,8}}:00/kbd_backlight_mode
8 * 0x1 -> FN-Z
9 * 0x2 -> AUTO (also called TIMER)
10 * 0x8 -> ON
11 * 0x10 -> OFF
14 parameters, kernel 3.15 only accepts the first two (FN-Z and
16 Also note that toggling this value on type 1 devices, requires
20 What: /sys/devices/LNXSYSTM:00/LNXSYBUS:00/TOS{1900,620{0,7,8}}:00/kbd_backlight_timeout
26 valid values range from 0-60.
29 type and the range accepted for type 2 is 1-60.
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Dsysfs-bus-intel_th-devices-gth1 What: /sys/bus/intel_th/devices/<intel_th_id>-gth/masters/*
5 Description: (RW) Configure output ports for STP masters. Writing -1
8 What: /sys/bus/intel_th/devices/<intel_th_id>-gth/outputs/[0-7]_port
16 1 MSU (Memory Storage Unit)
21 What: /sys/bus/intel_th/devices/<intel_th_id>-gth/outputs/[0-7]_drop
25 Description: (RW) Data retention policy setting: keep (0) or drop (1)
28 What: /sys/bus/intel_th/devices/<intel_th_id>-gth/outputs/[0-7]_null
32 Description: (RW) STP NULL packet generation: enabled (1) or disabled (0).
34 What: /sys/bus/intel_th/devices/<intel_th_id>-gth/outputs/[0-7]_flush
41 What: /sys/bus/intel_th/devices/<intel_th_id>-gth/outputs/[0-7]_reset
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/Documentation/devicetree/bindings/mailbox/
Dnvidia,tegra186-hsp.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/mailbox/nvidia,tegra186-hsp.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Thierry Reding <thierry.reding@gmail.com>
11 - Jon Hunter <jonathanh@nvidia.com>
30 - bits 15..8:
33 specified then, 32-bit shared mailbox is used.
34 - bits 7..0:
42 - bits 31..24:
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/Documentation/devicetree/bindings/perf/
Dapm-xgene-pmu.txt1 * APM X-Gene SoC PMU bindings
3 This is APM X-Gene SoC PMU (Performance Monitoring Unit) module.
6 L3C - L3 cache controller
7 IOB - IO bridge
8 MCB - Memory controller bridge
9 MC - Memory controller
14 - compatible : Shall be "apm,xgene-pmu" for revision 1 or
15 "apm,xgene-pmu-v2" for revision 2.
16 - regmap-csw : Regmap of the CPU switch fabric (CSW) resource.
17 - regmap-mcba : Regmap of the MCB-A (memory bridge) resource.
[all …]
/Documentation/devicetree/bindings/regulator/
Draspberrypi,7inch-touchscreen-panel-regulator.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/regulator/raspberrypi,7inch-touchscreen-panel-regulator.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: RaspberryPi 7" display ATTINY88-based regulator/backlight controller
10 - Marek Vasut <marex@denx.de>
13 The RaspberryPi 7" display has an ATTINY88-based regulator/backlight
18 - $ref: regulator.yaml#
22 const: raspberrypi,7inch-touchscreen-panel-regulator
25 maxItems: 1
[all …]
/Documentation/devicetree/bindings/display/msm/
Ddsi-phy-7nm.yaml1 # SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
3 ---
4 $id: http://devicetree.org/schemas/display/msm/dsi-phy-7nm.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Qualcomm Display DSI 7nm PHY
10 - Jonathan Marek <jonathan@marek.ca>
13 - $ref: dsi-phy-common.yaml#
18 - qcom,dsi-phy-7nm
19 - qcom,dsi-phy-7nm-8150
20 - qcom,sc7280-dsi-phy-7nm
[all …]
/Documentation/driver-api/media/drivers/ccs/
Dccs-regs.asc1 # SPDX-License-Identifier: GPL-2.0-only OR BSD-3-Clause
2 # Copyright (C) 2019--2020 Intel Corporation
5 # - f field LSB MSB rflags
6 # - e enum value # after a field
7 # - e enum value [LSB MSB]
8 # - b bool bit
9 # - l arg name min max elsize [discontig...]
13 # v1.1 defined in version 1.1
23 - e GRBG 0
24 - e RGGB 1
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/Documentation/RCU/Design/Memory-Ordering/
DTreeRCU-gp-cleanup.svg1 <?xml version="1.0" encoding="UTF-8" standalone="no"?>
2 <!-- Creator: fig2dev Version 3.2 Patchlevel 5e -->
4 <!-- CreationDate: Wed Dec 9 17:35:03 2015 -->
6 <!-- Magnification: 2.000 -->
11 xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
14 xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
18 viewBox="-44 -44 13645.583 16565.045"
22 sodipodi:docname="TreeRCU-gp-cleanup.svg">
46 d="M 0,0 5,-5 -12.5,0 5,5 0,0 z"
47 style="fill-rule:evenodd;stroke:#000000;stroke-width:1pt"
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