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/Documentation/devicetree/bindings/leds/backlight/
Dlp855x-backlight.yaml1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/leds/backlight/lp855x-backlight.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Artur Weber <aweber.kernel@gmail.com>
15 - ti,lp8550
16 - ti,lp8551
17 - ti,lp8552
18 - ti,lp8553
19 - ti,lp8555
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/Documentation/security/
Dsak.rst15 providing SAK. One is the ALT-SYSRQ-K sequence. You shouldn't use
28 What key sequence should you use? Well, CTRL-ALT-DEL is used to reboot
29 the machine. CTRL-ALT-BACKSPACE is magical to the X server. We'll
30 choose CTRL-ALT-PAUSE.
47 /dev/console opened.
51 incorrectly holding /dev/console open. Be sure to complain to your
57 # ls -l /proc/[0-9]*/fd/* | grep console
58 l-wx------ 1 root root 64 Mar 18 00:46 /proc/579/fd/0 -> /dev/console
63 root 579 0.0 0.1 1088 436 ? S 00:43 0:00 gpm -t ps/2
75 daemon gpm < /dev/null
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/Documentation/core-api/
Ddebugging-via-ohci1394.rst2 Using physical DMA provided by OHCI-1394 FireWire controllers for debugging
6 ------------
9 to the OHCI-1394 specification which defines the controller to be a PCI
12 PCI-Bus master DMA after applying filters defined by the OHCI-1394 driver.
15 ask the OHCI-1394 controller to perform read and write requests on
28 hardware such as x86, x86-64 and PowerPC.
34 Together with a early initialization of the OHCI-1394 controller for debugging,
41 -------
43 The firewire-ohci driver in drivers/firewire uses filtered physical
47 Because the firewire-ohci driver depends on the PCI enumeration to be
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/Documentation/networking/
Dstatistics.rst1 .. SPDX-License-Identifier: GPL-2.0
14 - standard interface statistics based on
16 - protocol-specific statistics; and
17 - driver-defined statistics available via ethtool.
20 -----------------------------
25 $ ip -s -s link show dev ens4u1u1
38 Note that `-s` has been specified twice to see all members of
40 If `-s` is specified once the detailed errors won't be shown.
42 `ip` supports JSON formatting via the `-j` option.
51 see `Documentation/userspace-api/netlink/intro-specs.rst`.
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/Documentation/devicetree/bindings/i2c/
Di2c-mux-gpmux.yaml1 # SPDX-License-Identifier: GPL-2.0
3 ---
4 $id: http://devicetree.org/schemas/i2c/i2c-mux-gpmux.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Peter Rosin <peda@axentia.se>
16 .-----. .-----.
17 | dev | | dev |
18 .------------. '-----' '-----'
20 | | .--------+--------'
21 | .------. | .------+ child bus A, on MUX value set to 0
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/Documentation/admin-guide/media/
Divtv.rst1 .. SPDX-License-Identifier: GPL-2.0
11 Hauppauge PVR-350.
29 --------
32 S-Video/Composite and audio line-in.
41 Additional features for the PVR-350 (CX23415 based)
42 ---------------------------------------------------
55 --------
60 ---
64 ----------------------------------------------------------
67 -------
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Dsi470x.rst1 .. SPDX-License-Identifier: GPL-2.0
12 -----------------------------
25 -------------
30 - Si4700: FM radio receiver
31 - Si4701: FM radio receiver, RDS Support
32 - Si4702: FM radio receiver
33 - Si4703: FM radio receiver, RDS Support
34 - Si4704: FM radio receiver, no external antenna required
35 - Si4705: FM radio receiver, no external antenna required, RDS support, Dig I/O
36 - Si4706: Enhanced FM RDS/TMC radio receiver, no external antenna required, RDS
[all …]
Dsi4713.rst1 .. SPDX-License-Identifier: GPL-2.0
14 ----------------------------
29 -------------------------
34 The I2C device driver exports a v4l2-subdev interface to the kernel.
36 using the v4l2-subdev calls (g_ext_ctrls, s_ext_ctrls).
48 ----------------------
51 Here is an output from v4l2-ctl util:
53 .. code-block:: none
55 / # v4l2-ctl -d /dev/radio0 --all -L
57 Driver name : radio-si4713
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/Documentation/driver-api/surface_aggregator/
Dclient.rst1 .. SPDX-License-Identifier: GPL-2.0+
35 client-api
45 are non-discoverable and instead need to be explicitly provided by some
49 Non-SSAM Client Drivers
53 representing that EC to the kernel. Drivers targeting a non-SSAM device (and
67 .. code-block:: c
71 struct ssam_controller *ctrl;
73 ctrl = ssam_client_bind(&pdev->dev);
74 if (IS_ERR(ctrl))
75 return PTR_ERR(ctrl) == -ENODEV ? -EPROBE_DEFER : PTR_ERR(ctrl);
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/Documentation/hid/
Dhid-transport.rst8 Bluetooth, I2C and user-space I/O drivers.
17 report-parsing, report interpretation and the user-space API. Device specifics
22 +-----------+ +-----------+ +-----------+ +-----------+
24 +-----------+ +-----------+ +-----------+ +-----------+
26 +------------+ +------------+
28 +------------+ +------------+
30 +------------------+ +------------------+
32 +------------------+ +------------------+
35 +----------------+
37 +----------------+
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/Documentation/devicetree/bindings/interrupt-controller/
Dti,sci-inta.yaml1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/interrupt-controller/ti,sci-inta.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Lokesh Vutla <lokeshvutla@ti.com>
13 - $ref: /schemas/arm/keystone/ti,k3-sci-common.yaml#
22 +-----------------------------------------+
24 | +--------------+ +------------+ |
25 m ------>| | vint | bit | | 0 |.....|63| vint0 |
26 . | +--------------+ +------------+ | +------+
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/Documentation/devicetree/bindings/remoteproc/
Dti,k3-dsp-rproc.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/remoteproc/ti,k3-dsp-rproc.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Suman Anna <s-anna@ti.com>
13 The TI K3 family of SoCs usually have one or more TI DSP Core sub-systems
14 that are used to offload some of the processor-intensive tasks or algorithms,
17 These processor sub-systems usually contain additional sub-modules like
23 Each DSP Core sub-system is represented as a single DT node. Each node has a
31 - ti,am62a-c7xv-dsp
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Dti,k3-r5f-rproc.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/remoteproc/ti,k3-r5f-rproc.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Suman Anna <s-anna@ti.com>
13 The TI K3 family of SoCs usually have one or more dual-core Arm Cortex R5F
20 AM64x SoCs do not support LockStep mode, but rather a new non-safety mode
21 called "Single-CPU" mode, where only Core0 is used, but with ability to use
27 Each Dual-Core R5F sub-system is represented as a single DTS node
40 - ti,am62-r5fss
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/Documentation/fb/
Dsh7760fb.rst6 -----------
29 - drivers/video/sh7760fb.c
30 - include/asm-sh/sh7760fb.h
31 - Documentation/fb/sh7760fb.rst
34 -----------------
47 --------------------
62 * NEC NL6440bc26-01 640x480 TFT
82 .left_margin = 114, /* HTOT - (HSYNSLEN + HSYNSTART) */
83 .right_margin = 16, /* HSYNSTART - XRES */
84 .upper_margin = 33, /* VTOT - (VSYNLEN + VSYNSTART) */
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/Documentation/driver-api/usb/
DURB.rst1 .. _usb-urb:
6 :Revised: 2000-Dec-05
7 :Again: 2002-Jul-06
8 :Again: 2005-Sep-19
9 :Again: 2017-Mar-29
14 The USB subsystem now has a substantial section at :ref:`usb-hostside-api`
26 - An URB consists of all relevant information to execute any USB transaction
29 - Execution of an URB is inherently an asynchronous operation, i.e. the
33 - Transfers for one URB can be canceled with :c:func:`usb_unlink_urb`
36 - Each URB has a completion handler, which is called after the action
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/Documentation/translations/it_IT/process/
Demail-clients.rst1 .. include:: ../disclaimer-ita.rst
3 :Original: :doc:`../../../process/email-clients`
12 ---
14 Oggigiorno, la maggior parte degli sviluppatori utilizza ``git send-email``
21 il comando ``git am messaggio-formato-testo.txt`` e revisionatene il risultato
26 ------------------------
30 allegati, ma in questo caso gli allegati devono avere il *content-type*
53 ASCII o UTF-8.
54 Se configurate il vostro programma per inviare messaggi codificati con UTF-8
58 "References" o "In-Reply-To:" cosicché la discussione non venga interrotta.
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/Documentation/usb/
Dgadget_hid.rst11 /dev/hidgX character devices.
21 HID function descriptors you want to use - E.G. something
74 .dev.platform_data = &my_hid_data,
92 /dev/hidgX character devices. See below for an example program
97 device type (keyboard / mouse / joystick) - E.G.::
99 # hid_gadget_test /dev/hidg0 keyboard
106 For example type: g i s t r --left-shift
112 --caps-lock and hit return. A report is then sent by the
116 --caps-lock
121 # hid_gadget_test /dev/hidg1 mouse
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Dgadget-testing.rst38 Function-specific configfs interface
39 ------------------------------------
46 The attribute is read-only.
52 ------------------------
56 cat > /dev/ttyACM<X>
60 cat /dev/ttyGS<Y>
66 cat > /dev/ttyGS<Y>
70 cat /dev/ttyACM<X>
77 Function-specific configfs interface
78 ------------------------------------
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/Documentation/sound/designs/
Dmidi-2.0.rst12 - Support of Universal MIDI Packet (UMP)
13 - Support of MIDI 2.0 protocol messages
14 - Transparent conversions between UMP and legacy MIDI 1.0 byte stream
15 - MIDI-CI for property and profile configurations
26 MIDI-CI is a high-level protocol that can talk with the MIDI device
31 the encoding/decoding of MIDI protocols on UMP, while MIDI-CI is
32 supported in user-space over the standard SysEx.
65 When a device supports MIDI 2.0, the USB-audio driver probes and uses
69 `midi2_enable=0` option to snd-usb-audio driver module, too.
78 option to snd-usb-audio driver for skipping the UMP v1.1 inquiries.
[all …]
/Documentation/power/
Dvideo.rst5 2003-2006, Pavel Machek
12 driver -- vesafb and vgacon are widely used).
56 (5) radeon systems, where X can soft-boot your video card. You'll need
69 http://dev.gentoo.org/~marineam/patch-radeonfb-2.6.11-rc2-mm2.
72 do echo 3 > /sys/power/state && /usr/sbin/video_post - which will
74 to a virtual terminal and back to X using CTRL+ALT+F1 - CTRL+ALT+F7 to get
85 your video card (good luck getting docs :-(). Maybe suspending from X
103 Acer TM 650 (Radeon M7) vga=normal plus boot-radeon (5) gets text
118 Compal CL-50 ??? [#f1]_
119 Compaq Armada E500 - P3-700 none (1) (S1 also works OK)
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/Documentation/admin-guide/
Dspkguide.txt16 Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A
25 http://linux-speakup.org/. Speakup is a set of patches to the standard
72 acntsa -- Accent SA
73 acntpc -- Accent PC
74 apollo -- Apollo
75 audptr -- Audapter
76 bns -- Braille 'n Speak
77 dectlk -- DecTalk Express (old and new, db9 serial only)
78 decext -- DecTalk (old) External
79 dtlk -- DoubleTalk PC
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/Documentation/spi/
Dspi-summary.rst5 02-Feb-2012
8 ------------
17 clocking modes through which data is exchanged; mode-0 and mode-3 are most
32 - SPI may be used for request/response style device protocols, as with
35 - It may also be used to stream data in either direction (half duplex),
38 - Some devices may use eight bit words. Others may use different word
39 lengths, such as streams of 12-bit or 20-bit digital samples.
41 - Words are usually sent with their most significant bit (MSB) first,
44 - Sometimes SPI is used to daisy-chain devices, like shift registers.
51 SPI is only one of the names used by such four-wire protocols, and
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/Documentation/userspace-api/media/rc/
Drc-tables.rst1 .. SPDX-License-Identifier: GPL-2.0 OR GFDL-1.1-no-invariants-or-later
23 the remote via /dev/input/event devices.
30 .. flat-table:: IR default keymapping
31 :header-rows: 0
32 :stub-columns: 0
36 - .. row 1
38 - Key code
40 - Meaning
42 - Key examples on IR
44 - .. row 2
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/Documentation/dev-tools/
Dkgdb.rst15 Kdb is simplistic shell-style interface which you can use on a system
22 kernel built-ins or in kernel modules if the code was built with
40 kgdb I/O modules compiled as built-ins or loadable kernel modules in the
46 - In order to enable compilation of kdb, you must first enable kgdb.
48 - The kgdb test compile options are described in the kgdb test suite
52 ------------------------------
55 :menuselection:`Kernel hacking --> Kernel debugging` and select
73 certain regions of the kernel's memory space as read-only. If kgdb
93 -----------------------------
108 If you want to use a PS/2-style keyboard with kdb, you would select
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/Documentation/driver-api/
Dxillybus.rst10 - Introduction
11 -- Background
12 -- Xillybus Overview
14 - Usage
15 -- User interface
16 -- Synchronization
17 -- Seekable pipes
19 - Internals
20 -- Source code organization
21 -- Pipe attributes
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