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/Documentation/ABI/testing/
Dsysfs-driver-typec-displayport18 Note. USB configuration does not equal to Exit Mode. It is
19 separate configuration defined in VESA DisplayPort Alt Mode on
20 USB Type-C Standard. Functionally it equals to the situation
21 where the mode has been exited (to exit the mode, see
22 Documentation/ABI/testing/sysfs-bus-typec, and use file
29 VESA DisplayPort Alt Mode on USB Type-C Standard defines six
30 different pin assignments for USB Type-C connector that are
44 Note. As of VESA DisplayPort Alt Mode on USB Type-C Standard
55 VESA DisplayPort Alt Mode on USB Type-C Standard defines how
56 HotPlugDetect(HPD) shall be supported on the USB-C connector when
[all …]
Dsysfs-class-power-wilco1 What: /sys/class/power_supply/wilco-charger/charge_type
7 Standard:
8 Fully charges battery at a standard rate.
24 On Wilco device this mode is pre-configured in the factory
25 through EC's private PID. Switching to a different mode will
26 be denied by Wilco EC when Long Life mode is enabled.
28 What: /sys/class/power_supply/wilco-charger/charge_control_start_threshold
35 What: /sys/class/power_supply/wilco-charger/charge_control_end_threshold
Dsysfs-platform-at914 Contact: Marc Kleine-Budde <kernel@pengutronix.de>
8 Default: 0x7ff (standard frame)
11 "AT91SAM9263 Preliminary 6249H-ATARM-27-Jul-09") the
13 conditions (even if disabled or in rx mode).
21 - standard id 0x7ff::
25 - extended id 0x1fffffff::
Dsysfs-bus-typec5 Shows if the mode is active or not. The attribute can be used
6 for entering/exiting the mode. Entering/exiting modes is
8 does not return until the enter/exit mode operation has
9 finished. The attribute is notified when the mode is
11 Entering/exiting a mode will also generate uevent KOBJ_CHANGE.
19 Shows description of the mode. The description is optional for
22 What: /sys/bus/typec/devices/.../mode
26 The index number of the mode returned by Discover Modes USB
27 Power Delivery command. Depending on the alternate mode, the
28 mode index may be significant.
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/Documentation/admin-guide/
Dsvga.rst4 Video Mode Selection Support 2.13
7 :Copyright: |copy| 1995--1999 Martin Mares, <mj@ucw.cz>
12 This small document describes the "Video Mode Selection" feature which
21 enter ``scan`` on the video mode prompt, pick the mode you want to use,
22 remember its mode ID (the four-digit hexadecimal number) and then
25 The video mode to be used is selected by a kernel parameter which can be
28 (present in standard Linux utility packages). You can use the following values
31 NORMAL_VGA - Standard 80x25 mode available on all display adapters.
33 EXTENDED_VGA - Standard 8-pixel font mode: 80x43 on EGA, 80x50 on VGA.
35 ASK_VGA - Display a video mode menu upon startup (see below).
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/Documentation/fb/
Dmodedb.rst2 modedb default video mode support
6 Currently all frame buffer device drivers have their own video mode databases,
9 - one routine to probe for video modes, which can be used by all frame buffer
11 - one generic video mode database with a fair amount of standard videomodes
13 - the possibility to supply your own mode database for graphics hardware that
14 needs non-standard modes, like amifb and Mac frame buffer drivers (which
18 consider that to be a video mode option. If no frame buffer device is specified
19 in a video= option, fbmem considers that to be a global video mode option.
21 Valid mode specifiers (mode_option argument)::
23 <xres>x<yres>[M][R][-<bpp>][@<refresh>][i][m][eDd]
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Duvesafb.rst2 uvesafb - A Generic Driver for VBE2+ compliant video cards
6 ---------------
9 with the VBE 2.0 standard.
30 --------------------------
36 - Lack of any type of acceleration.
37 - A strict and limited set of supported video modes. Often the native
40 video mode you want to use. This can be especially painful with
42 ratio, which is what most BIOS-es are limited to.
43 - Adjusting the refresh rate is only possible with a VBE 3.0 compliant
44 Video BIOS. Note that many nVidia Video BIOS-es claim to be VBE 3.0
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Dudlfb.rst15 pixels line-by-line via USB bulk transfers.
18 does not require any acks - the effect is very low latency that
20 non-gaming and non-video applications.
22 Mode setting, EDID read, etc are other bulk or control transfers. Mode
23 setting is very flexible - able to set nearly arbitrary modes from any timing.
35 one-to-one with the fbdev interface, making the driver quite small and
37 * X servers and other applications can use the standard fbdev interface
38 from user mode to talk to the device, without needing to know anything
48 In the future, hopefully fbdev will be enhanced with an small standard
60 of the monitor, and set the best common mode between the DisplayLink device
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Dep93xx-fb.rst5 The EP93xx LCD controller can drive both standard desktop monitors and
6 embedded LCD displays. If you have a standard desktop monitor then you
7 can use the standard Linux video mode database. In your board file::
15 mode for it as follows::
24 Note that the pixel clock value is in pico-seconds. You can use the
98 struct ep93xxfb_mach_info *mach_info = pdev->dev.platform_data;
105 Setting the video mode
108 The video mode is set using the following syntax::
110 video=XRESxYRES[-BPP][@REFRESH]
112 If the EP93xx video driver is built-in then the video mode is set on
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/Documentation/networking/
Dplip.rst1 .. SPDX-License-Identifier: GPL-2.0
14 -----------------
17 This device interface allows a point-to-point connection between two
25 printer port. PLIP is a non-standard, but [can use] uses the standard
26 LapLink null-printer cable [can also work in turbo mode, with a PLIP
52 an existing Ethernet. Isn't standard (not even de facto standard, like
62 -------------------
77 On these machines, the PLIP driver can be used in IRQ-less mode, where
79 and if such data is available, process it. This mode is less efficient than
80 the IRQ mode, because the driver has to check the parallel port many times
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/Documentation/userspace-api/media/drivers/
Daspeed-video.rst1 .. SPDX-License-Identifier: GPL-2.0
14 * JPEG JFIF standard mode: for single frame and management compression
15 * ASPEED proprietary mode: for multi-frame and differential compression.
16 Support 2-pass (high quality) video compression scheme (Patent pending by
21 stands for JPEG JFIF standard mode; V4L2_PIX_FMT_AJPG stands for ASPEED
22 proprietary mode.
26 `github <https://github.com/AspeedTech-BMC/openbmc/releases/>`__.
28 The ASPEED video driver implements the following driver-specific control:
31 ---------------------------
32 Enable/Disable ASPEED's High quality mode. This is a private control
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/Documentation/devicetree/bindings/display/panel/
Dpanel-mipi-dbi-spi.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/display/panel/panel-mipi-dbi-spi.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Noralf Trønnes <noralf@tronnes.org>
14 in SPI mode.
16 The MIPI Alliance Standard for Display Bus Interface defines the electrical
18 phones. The standard defines 4 display architecture types and this binding is
20 standard and type C is the serial interface.
22 The standard defines the following interface signals for type C:
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/Documentation/sound/cards/
Dhdspm.rst2 Software Interface ALSA-DSP MADI Driver
5 (translated from German, so no good English ;-),
7 2004 - winfried ritsch
11 the Controls and startup-options are ALSA-Standard and only the
19 ------------------
21 * number of channels -- depends on transmission mode
29 * Single Speed -- 1..64 channels
32 (Note: Choosing the 56channel mode for transmission or as
37 * Double Speed -- 1..32 channels
40 Note: Choosing the 56-channel mode for
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/Documentation/userspace-api/media/v4l/
Dvidioc-g-tuner.rst1 .. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
13 VIDIOC_G_TUNER - VIDIOC_S_TUNER - Get or set tuner attributes
46 Tuners have two writable properties, the audio mode and the radio
47 frequency. To change the audio mode, applications initialize the
51 different audio mode if the requested mode is invalid or unsupported.
52 Since this is a write-only ioctl, it does not return the actually
53 selected audio mode.
68 .. flat-table:: struct v4l2_tuner
69 :header-rows: 0
70 :stub-columns: 0
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Dmetafmt-d4xx.rst1 .. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
3 .. _v4l2-meta-fmt-d4xx:
15 Intel D4xx (D435, D455 and others) cameras include per-frame metadata in their UVC
17 means, that the private D4XX metadata, following the standard UVC header, is
18 organised in blocks. D4XX cameras implement several standard block types,
19 proposed by Microsoft, and several proprietary ones. Supported standard metadata
37 .. flat-table:: D4xx metadata
39 :header-rows: 1
40 :stub-columns: 0
42 * - **Field**
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Dext-ctrls-dv.rst1 .. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
3 .. _dv-controls:
15 only exposed on the ``/dev/v4l-subdev*`` device node.
23 Identification Data, :ref:`vesaedid`) and HDCP (High-bandwidth Digital
33 .. _dv-control-id:
47 read-only control is applicable to DVI-D, HDMI and DisplayPort
51 Rx Sense is the detection of pull-ups on the TMDS clock lines. This
56 that pad will be 0. This read-only control is applicable to DVI-D
64 EDIDs, then the bit for that pad will be 0. This read-only control
65 is applicable to VGA, DVI-A/D, HDMI and DisplayPort connectors.
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Dvidioc-g-std.rst1 .. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
13 VIDIOC_G_STD - VIDIOC_S_STD - VIDIOC_SUBDEV_G_STD - VIDIOC_SUBDEV_S_STD - Query or select the video…
46 To query and select the current video standard applications use the
48 :ref:`v4l2_std_id <v4l2-std-id>` type as argument. :ref:`VIDIOC_G_STD <VIDIOC_G_STD>`
54 :ref:`VIDIOC_S_STD <VIDIOC_G_STD>` accepts one or more flags, being a write-only ioctl it
55 does not return the actual new standard as :ref:`VIDIOC_G_STD <VIDIOC_G_STD>` does. When
57 standard the driver returns an ``EINVAL`` error code. When the standard set
59 standards. If the current input or output does not support standard
65 in read-only mode is not allowed. An error is returned and the errno variable is
66 set to ``-EPERM``.
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/Documentation/devicetree/bindings/riscv/
Dextensions.yaml1 # SPDX-License-Identifier: (GPL-2.0 OR MIT)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: RISC-V ISA extensions
10 - Paul Walmsley <paul.walmsley@sifive.com>
11 - Palmer Dabbelt <palmer@sifive.com>
12 - Conor Dooley <conor@kernel.org>
15 RISC-V has a large number of extensions, some of which are "standard"
16 extensions, meaning they are ratified by RISC-V International, and others
21 Once a standard extension has been ratified, no changes in behaviour can be
[all …]
/Documentation/devicetree/bindings/net/
Dti,dp83822.yaml1 # SPDX-License-Identifier: (GPL-2.0+ OR BSD-2-Clause)
4 ---
6 $schema: http://devicetree.org/meta-schemas/core.yaml#
11 - Andrew Davis <afd@ti.com>
14 The DP83822 is a low-power, single-port, 10/100 Mbps Ethernet PHY. It
16 data over standard, twisted-pair cables or to connect to an external,
17 fiber-optic transceiver. Additionally, the DP83822 provides flexibility to
18 connect to a MAC through a standard MII, RMII, or RGMII interface
24 - $ref: ethernet-phy.yaml#
30 ti,link-loss-low:
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Dmicrel.txt7 - micrel,led-mode : LED mode value to set for PHYs with configurable LEDs.
9 Configure the LED mode with single value. The list of PHYs and the
21 See the respective PHY datasheet for the mode values.
23 - micrel,rmii-reference-clock-select-25-mhz: RMII Reference Clock Select
24 bit selects 25 MHz mode
27 than 50 MHz clock mode.
30 non-standard, inverted function of this configuration bit.
31 Specifically, a clock reference ("rmii-ref" below) is always needed to
32 actually select a mode.
34 - clocks, clock-names: contains clocks according to the common clock bindings.
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/Documentation/arch/riscv/
Duabi.rst1 .. SPDX-License-Identifier: GPL-2.0
3 RISC-V Linux User ABI
7 ------------------------------------
14 #. Single-letter extensions come first, in canonical order.
17 #. All multi-letter extensions will be separated from other extensions by an
20 #. Additional standard extensions (starting with 'Z') will be sorted after
21 single-letter extensions and before any higher-privileged extensions.
23 #. For additional standard extensions, the first letter following the 'Z'
29 #. Standard supervisor-level extensions (starting with 'S') will be listed
30 after standard unprivileged extensions. If multiple supervisor-level
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/Documentation/devicetree/bindings/pci/
Dti-pci.txt4 - compatible: Should be "ti,dra7-pcie" for RC (deprecated)
5 Should be "ti,dra7-pcie-ep" for EP (deprecated)
6 Should be "ti,dra746-pcie-rc" for dra74x/dra76 in RC mode
7 Should be "ti,dra746-pcie-ep" for dra74x/dra76 in EP mode
8 Should be "ti,dra726-pcie-rc" for dra72x in RC mode
9 Should be "ti,dra726-pcie-ep" for dra72x in EP mode
10 - phys : list of PHY specifiers (used by generic PHY framework)
11 - phy-names : must be "pcie-phy0", "pcie-phy1", "pcie-phyN".. based on the
13 - ti,hwmods : Name of the hwmod associated to the pcie, "pcie<X>",
15 - num-lanes as specified in ../snps,dw-pcie.yaml
[all …]
/Documentation/hwmon/
Df71882fg.rst103 This is the 64-pin variant of the F71889FG, they have the
119 -----------
133 ----------
135 The Voltage, Fan and Temperature Monitoring uses the standard sysfs
136 interface as documented in sysfs-interface, without any exceptions.
140 -----------
142 Both PWM (pulse-width modulation) and DC fan speed control methods are
149 vica versa. So the temperature zone trip points 1-4 (or 1-2) go from high temp
154 voltage) mode, where 0-100% duty cycle (0-100% of 12V) is specified. And RPM
155 mode where the actual RPM of the fan (as measured) is controlled and the speed
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/Documentation/admin-guide/blockdev/
Dparide.rst5 PARIDE v1.03 (c) 1997-8 Grant Guenther <grant@torque.net>
12 to personal computers, many external devices such as portable hard-disk,
13 CD-ROM, LS-120 and tape drives use the parallel port to connect to their
14 host computer. While some devices (notably scanners) use ad-hoc methods
17 a parallel-port adapter chip added in. Some of the original parallel port
19 (The Iomega PPA-3 adapter used in the ZIP drives is an example of this
24 the device being addressed via the parallel cable is a standard SCSI
27 which is then connected to a floppy-tape mechanism. The vast majority
28 of external parallel port devices, however, are now based on standard
30 were to open up a parallel port CD-ROM drive, for instance, one would
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/Documentation/devicetree/bindings/media/i2c/
Dadv7343.txt3 The ADV7343 are high speed, digital-to-analog video encoders in a 64-lead LQFP
4 package. Six high speed, 3.3 V, 11-bit video DACs provide support for composite
5 (CVBS), S-Video (Y-C), and component (YPrPb/RGB) analog outputs in standard
10 - compatible: Must be "adi,adv7343"
13 - adi,power-mode-sleep-mode: on enable the current consumption is reduced to
16 - adi,power-mode-pll-ctrl: PLL and oversampling control. This control allows
19 - ad,adv7343-power-mode-dac: array configuring the power on/off DAC's 1..6,
22 - ad,adv7343-sd-config-dac-out: array configure SD DAC Output's 1 and 2, 0 = OFF
38 adi,power-mode-sleep-mode;
39 adi,power-mode-pll-ctrl;
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