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/Documentation/input/devices/
Dalps.rst1 ----------------------
3 ----------------------
6 ------------
8 ALPS touchpads, called versions 1, 2, 3, 4, 5, 6, 7 and 8.
10 Since roughly mid-2010 several new ALPS touchpads have been released and
14 adequate. The design choices were to re-define the alps_model_data
29 ---------
32 E8-E6-E6-E6-E9. An ALPS touchpad should respond with either 00-00-0A or
33 00-00-64 if no buttons are pressed. The bits 0-2 of the first byte will be 1s
37 report" sequence: E8-E7-E7-E7-E9. The response is the model signature and is
[all …]
Delantech.rst4 Copyright (C) 2007-2008 Arjan Opmeer <arjan@opmeer.net>
18 4. Hardware version 1
20 4.2 Native relative mode 4 byte packet format
21 4.3 Native absolute mode 4 byte packet format
24 5.2 Native absolute mode 6 byte packet format
25 5.2.1 Parity checking and packet re-synchronization
30 6.2 Native absolute mode 6 byte packet format
33 7. Hardware version 4
35 7.2 Native absolute mode 6 byte packet format
39 8. Trackpoint (for Hardware version 3 and 4)
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Dsentelic.rst8 :Copyright: |copy| 2002-2011 Sentelic Corporation.
10 :Last update: Dec-07-2011
12 Finger Sensing Pad Intellimouse Mode (scrolling wheel, 4th and 5th buttons)
15 A) MSID 4: Scrolling wheel mode plus Forward page(4th button) and Backward
21 4. Issuing the "Get device ID" command (0xF2) and waits for the response;
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
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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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/Documentation/userspace-api/media/v4l/
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
22 4:4:4 Subsampling
28 The next table lists the packed YUV 4:4:4 formats with less than 8 bits per
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`].
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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
23 **Byte Order.**
24 Each cell is one byte.
26 .. flat-table::
27 :header-rows: 1
28 :stub-columns: 0
30 * - Offset:
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Dpixfmt-rgb.rst1 .. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
3 .. _pixfmt-rgb:
12 bits required to store a pixel is not aligned to a byte boundary, the data is
13 padded with additional bits to fill the remaining byte.
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
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Dpixfmt-yuv-luma.rst1 .. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
3 .. _yuv-luma-only:
6 Luma-Only Formats
14 - In all the tables that follow, bit 7 is the most significant bit in a byte.
15 - Formats are described with the minimum number of pixels needed to create a
16 byte-aligned repeating pattern. `...` indicates repetition of the pattern.
17 - Y'\ :sub:`x`\ [9:2] denotes bits 9 to 2 of the Y' value for pixel at column
19 - `0` denotes padding bits set to 0.
28 .. flat-table:: Luma-Only Image Formats
29 :header-rows: 1
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Dmetafmt-generic.rst1 .. SPDX-License-Identifier: GPL-2.0 OR GFDL-1.1-no-invariants-or-later
8 Generic line-based metadata formats
14 These generic line-based metadata formats define the memory layout of the data
17 .. _v4l2-meta-fmt-generic-8:
20 -----------------------
22 The V4L2_META_FMT_GENERIC_8 format is a plain 8-bit metadata format. This format
23 is used on CSI-2 for 8 bits per :term:`Data Unit`.
26 packed into one 16-bit Data Unit. Otherwise the 16 bits per pixel dataformat is
27 :ref:`V4L2_META_FMT_GENERIC_CSI2_16 <v4l2-meta-fmt-generic-csi2-16>`.
29 **Byte Order Of V4L2_META_FMT_GENERIC_8.**
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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
23 **Byte Order.**
24 Each cell is one byte.
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
23 **Byte Order.**
24 Each cell is one byte.
26 .. flat-table::
27 :header-rows: 1
28 :stub-columns: 0
30 * - Offset:
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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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/Documentation/scsi/
Darcmsr_spec.rst11 ------------
13 - InitThread message and return code
15 2. Doorbell is used for RS-232 emulation
16 ----------------------------------------
35 ---------------------
46 4. RS-232 emulation
47 -------------------
49 Currently 128 byte buffer is used:
52 1st uint32_t Data length (1--124)
53 Byte 4--127 Max 124 bytes of data
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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/staging/
Dlzo.rst26 - a distance when copying data from the dictionary (past output buffer)
27 - a length (number of bytes to copy from dictionary)
28 - the number of literals to copy, which is retained in variable "state"
35 The first byte of the block follows a different encoding from other bytes, it
37 prior to that byte.
42 rate of at most 255 per extra byte (thus the compression ratio cannot exceed
45 length = byte & ((1 << #bits) - 1)
47 length = ((1 << #bits) - 1)
49 length += first-non-zero-byte
56 Certain encodings involve one extra byte, others involve two extra bytes
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/Documentation/devicetree/bindings/mtd/
Dfsmc-nand.txt5 - compatible : "st,spear600-fsmc-nand", "stericsson,fsmc-nand"
6 - reg : Address range of the mtd chip
7 - reg-names: Should contain the reg names "fsmc_regs", "nand_data", "nand_addr" and "nand_cmd"
10 - bank-width : Width (in bytes) of the device. If not present, the width
11 defaults to 1 byte
12 - nand-skip-bbtscan: Indicates the BBT scanning should be skipped
13 - timings: array of 6 bytes for NAND timings. The meanings of these bytes
15 byte 0 TCLR : CLE to RE delay in number of AHB clock cycles, only 4 bits
18 byte 1 TAR : ALE to RE delay, 4 bits are valid. Same format as TCLR.
19 byte 2 THIZ : number of HCLK clock cycles during which the data bus is
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/Documentation/arch/sparc/oradax/
Ddax-hv-api.txt3 Publication date 2017-09-25 08:21
5 Extracted via "pdftotext -f 547 -l 572 -layout sun4v_20170925.pdf"
16 live-migration and other system management activities.
20 …high speed processoring of database-centric operations. The coprocessors may support one or more of
28 …e Completion Area and, unless execution order is specifically restricted through the use of serial-
45 …device node in the guest MD (Section 8.24.17, “Database Analytics Accelerators (DAX) virtual-device
51 36.1.1.1. "ORCL,sun4v-dax" Device Compatibility
54 • No-op/Sync
81 36.1.1.2. "ORCL,sun4v-dax-fc" Device Compatibility
82 … "ORCL,sun4v-dax-fc" is compatible with the "ORCL,sun4v-dax" interface, and includes additional CCB
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/Documentation/hwmon/
Dabituguru-datasheet.rst14 Olle Sandberg <ollebull@gmail.com>, 2005-05-25
27 Hans de Goede <j.w.r.degoede@hhs.nl>, 28-01-2006
33 As far as known the uGuru is always placed at and using the (ISA) I/O-ports
34 0xE0 and 0xE4, so we don't have to scan any port-range, just check what the two
35 ports are holding for detection. We will refer to 0xE0 as CMD (command-port)
39 present. We have to check for two different values at data-port, because
41 later on attached again data-port will hold 0x08, more about this later.
57 ----------
82 -----------
101 ----------------------------------------------
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/Documentation/devicetree/bindings/display/msm/
Ddsi-controller-main.yaml1 # SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
3 ---
4 $id: http://devicetree.org/schemas/display/msm/dsi-controller-main.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Krishna Manikandan <quic_mkrishn@quicinc.com>
15 - items:
16 - enum:
17 - qcom,apq8064-dsi-ctrl
18 - qcom,msm8226-dsi-ctrl
19 - qcom,msm8916-dsi-ctrl
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/Documentation/driver-api/
Dmtdnand.rst10 The generic NAND driver supports almost all NAND and AG-AND based chips
31 --------------------------
37 - [MTD Interface]
43 - [NAND Interface]
48 - [GENERIC]
53 - [DEFAULT]
65 -------------------------------
71 - [INTERN]
77 - [REPLACEABLE]
86 - [BOARDSPECIFIC]
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Dswitchtec.rst10 * Packet and Byte Counters
23 through the Memory-mapped Remote Procedure Call (MRPC) interface.
24 Commands are submitted to the interface with a 4-byte command
26 respond with a 4-byte return code and up to 1KB of command-specific
38 * A write must consist of at least 4 bytes and no more than 1028 bytes.
39 The first 4 bytes will be interpreted as the Command ID and the
48 the 4-byte Command Return Value plus up to 1024 bytes of output
50 call -- reading less than 4 bytes will produce an error.)
57 * SWITCHTEC_IOCTL_FLASH_INFO - Retrieve firmware length and number
60 * SWITCHTEC_IOCTL_FLASH_PART_INFO - Retrieve address and lengeth for
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/Documentation/hid/
Dhid-alps.rst6 ------------
19 --------------
22 Byte Field Value Notes
26 4 wReportDescLength 00B2 Report Descriptor is 178 Bytes (0x00B2)
42 ---------
45 ReportID-1 (Input Reports) (HIDUsage-Mouse) for TP&SP
46 ReportID-2 (Input Reports) (HIDUsage-keyboard) for TP
47 ReportID-3 (Input Reports) (Vendor Usage: Max 10 finger data) for TP
48 ReportID-4 (Input Reports) (Vendor Usage: ON bit data) for GP
49 ReportID-5 (Feature Reports) Feature Reports
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/Documentation/devicetree/bindings/dma/
Dintel,ldma.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - chuanhua.lei@intel.com
11 - mallikarjunax.reddy@intel.com
14 - $ref: dma-controller.yaml#
19 - intel,lgm-cdma
20 - intel,lgm-dma2tx
21 - intel,lgm-dma1rx
22 - intel,lgm-dma1tx
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/Documentation/ABI/testing/
Dsysfs-driver-wacom4 Contact: linux-bluetooth@vger.kernel.org
14 Contact: linux-input@vger.kernel.org
17 This attribute group is only available for Intuos 4 M, L,
18 and XL (with LEDs and OLEDs), Intuos 4 WL, Intuos 5 (LEDs only),
25 Contact: linux-input@vger.kernel.org
35 Contact: linux-input@vger.kernel.org
44 Contact: linux-input@vger.kernel.org
47 Writing to this file sets which one of the four (for Intuos 4
54 Contact: linux-input@vger.kernel.org
63 Contact: linux-input@vger.kernel.org
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/Documentation/sound/cards/
Dserial-u16550.rst7 * 0 - Roland Soundcanvas support (default)
8 * 1 - Midiator MS-124T support (1)
9 * 2 - Midiator MS-124W S/A mode (2)
10 * 3 - MS-124W M/B mode support (3)
11 * 4 - Generic device with multiple input support (4)
13 For the Midiator MS-124W, you must set the physical M-S and A-B
17 (midiCnD0-midiCnD15). Whenever you write to a different substream, the driver
28 /sbin/modprobe snd-serial-u16550 port=0x3f8 irq=4 speed=115200
30 Usage example for Roland SoundCanvas with 4 MIDI ports:
34 /sbin/modprobe snd-serial-u16550 port=0x3f8 irq=4 outs=4
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