Searched +full:half +full:- +full:period (Results 1 – 25 of 31) sorted by relevance
12
| /Documentation/devicetree/bindings/input/ |
| D | rotary-encoder.yaml | 1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/input/rotary-encoder.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Frank Li <Frank.Li@nxp.com>
13 See Documentation/input/devices/rotary-encoder.rst for more information.
17 const: rotary-encoder
28 rotary-encoder,steps:
36 rotary-encoder,relative-axis:
40 absolute one. Relative axis will only generate +1/-1 events on the input
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| D | azoteq,iqs7222.yaml | 1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Jeff LaBundy <jeff@labundy.com>
21 - azoteq,iqs7222a
22 - azoteq,iqs7222b
23 - azoteq,iqs7222c
24 - azoteq,iqs7222d
29 irq-gpios:
32 Specifies the GPIO connected to the device's active-low RDY output.
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| /Documentation/input/devices/ |
| D | rotary-encoder.rst | 2 rotary-encoder - a generic driver for GPIO connected devices
8 --------
11 peripherals with two wires. The outputs are phase-shifted by 90 degrees
16 a stable state with both outputs high (half-period mode) and some have
17 a stable state in all steps (quarter-period mode).
33 |<-------->|
36 |<-->|
37 one step (half-period mode)
40 one step (quarter-period mode)
47 ----------------------
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| /Documentation/RCU/ |
| D | stallwarn.rst | 1 .. SPDX-License-Identifier: GPL-2.0
9 options that can be used to fine-tune the detector's operation. Finally,
20 - A CPU looping in an RCU read-side critical section.
22 - A CPU looping with interrupts disabled.
24 - A CPU looping with preemption disabled.
26 - A CPU looping with bottom halves disabled.
28 - For !CONFIG_PREEMPTION kernels, a CPU looping anywhere in the
33 - Booting Linux using a console connection that is too slow to
34 keep up with the boot-time console-message rate. For example,
36 with boot-time message rates, and will frequently result in
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| /Documentation/scheduler/ |
| D | sched-bwc.rst | 7 The SCHED_RT case is covered in Documentation/scheduler/sched-rt-group.rst
12 The bandwidth allowed for a group is specified using a quota and period. Within
13 each given "period" (microseconds), a task group is allocated up to "quota"
14 microseconds of CPU time. That quota is assigned to per-cpu run queues in
18 period when the quota is replenished.
21 cfs_quota units at each period boundary. As threads consume this bandwidth it
22 is transferred to cpu-local "silos" on a demand basis. The amount transferred
26 -------------
30 Traditional (UP-EDF) bandwidth control is something like:
66 https://lore.kernel.org/lkml/5371BD36-55AE-4F71-B9D7-B86DC32E3D2B@linux.alibaba.com/
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| D | schedutil.rst | 15 individual tasks to task-group slices to CPU runqueues. As the basis for this
16 we use an Exponentially Weighted Moving Average (EWMA), each period (1024us)
18 half, while the rest of history contribute the other half.
31 Note that blocked tasks still contribute to the aggregates (task-group slices
57 r_dvfs := -----
61 hardware counters (Intel APERF/MPERF, ARMv8.4-AMU) to provide us this ratio.
65 f_cur := ----- * P0
68 4C-turbo; if available and turbo enabled
69 f_max := { 1C-turbo; if turbo enabled
73 r_dvfs := min( 1, ----- )
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| /Documentation/devicetree/bindings/memory-controllers/ |
| D | ti,gpmc-child.yaml | 1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/memory-controllers/ti,gpmc-child.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Tony Lindgren <tony@atomide.com>
11 - Roger Quadros <rogerq@kernel.org>
24 gpmc,sync-clk-ps:
25 description: Minimum clock period for synchronous mode
28 # Chip-select signal timings corresponding to GPMC_CONFIG2:
29 gpmc,cs-on-ns:
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| D | rockchip,rk3399-dmc.yaml | 1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/memory-controllers/rockchip,rk3399-dmc.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Brian Norris <briannorris@chromium.org>
15 - rockchip,rk3399-dmc
17 devfreq-events:
26 clock-names:
28 - const: dmc_clk
30 operating-points-v2: true
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| /Documentation/arch/arm/stm32/ |
| D | stm32-dma-mdma-chaining.rst | 1 .. SPDX-License-Identifier: GPL-2.0
4 STM32 DMA-MDMA chaining
9 ------------
11 This document describes the STM32 DMA-MDMA chaining feature. But before going
44 ----------
46 STM32 DMA-MDMA chaining feature relies on the strengths of STM32 DMA and
50 (when DMA data counter - DMA_SxNDTR - reaches 0), the memory pointers
56 With STM32 MDMA linked-list mode, a single request initiates the data array
57 (collection of nodes) to be transferred until the linked-list pointer for the
60 case, the linked-list loops on to create a circular MDMA transfer.
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| /Documentation/filesystems/ |
| D | qnx6.rst | 1 .. SPDX-License-Identifier: GPL-2.0
29 ------
39 ---------------
50 (or period) and building up a new (stable) filesystem structure under the
65 Unused block pointers are always set to ~0 - regardless of root node,
79 0x1000 is the size reserved for each superblock - regardless of the
83 ------
104 -----------
125 -------------
141 --------------
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| /Documentation/userspace-api/media/v4l/ |
| D | func-read.rst | 1 .. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
4 .. _func-read:
13 v4l2-read - Read from a V4L2 device
18 .. code-block:: c
64 only the period of the vertical blanking interval is available for
69 period or the vertical blanking separating the top and bottom field
78 implies a reduction of the capture rate to one half or less of the
101 :c:func:`read()` was interrupted by a signal. On error, -1 is
107 Non-blocking I/O has been selected using O_NONBLOCK and no data was
|
| D | ext-ctrls-codec.rst | 1 .. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
3 .. _codec-controls:
24 .. _mpeg-control-id:
27 -----------------
35 .. _v4l2-mpeg-stream-type:
40 enum v4l2_mpeg_stream_type -
41 The MPEG-1, -2 or -4 output stream type. One cannot assume anything
48 .. flat-table::
49 :header-rows: 0
50 :stub-columns: 0
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| /Documentation/RCU/Design/Memory-Ordering/ |
| D | Tree-RCU-Memory-Ordering.rst | 2 A Tour Through TREE_RCU's Grace-Period Memory Ordering
13 grace-period memory ordering guarantee is provided.
15 What Is Tree RCU's Grace Period Memory Ordering Guarantee?
18 RCU grace periods provide extremely strong memory-ordering guarantees
19 for non-idle non-offline code.
20 Any code that happens after the end of a given RCU grace period is guaranteed
22 period that are within RCU read-side critical sections.
24 period is guaranteed to not see the effects of all accesses following the end
25 of that grace period that are within RCU read-side critical sections.
27 Note well that RCU-sched read-side critical sections include any region
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| /Documentation/hwmon/ |
| D | lm75.rst | 10 Addresses scanned: I2C 0x48 - 0x4f
20 Addresses scanned: I2C 0x48 - 0x4f
44 http://www.maxim-ic.com/
134 https://www.nxp.com/docs/en/data-sheet/PCT2075.pdf
144 https://ams.com/documents/20143/36005/AS6200_DS000449_4-00.pdf
149 -----------
153 set and read to half-degree accuracy.
158 range of -55 to +125 degrees.
160 The driver caches the values for a period varying between 1 second for the
164 The original LM75 was typically used in combination with LM78-like chips
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| /Documentation/sphinx/ |
| D | kerneldoc-preamble.sty | 1 % -*- coding: utf-8 -*-
2 % SPDX-License-Identifier: GPL-2.0
5 % - TOC width settings
6 % - Setting of tabulary (\tymin)
7 % - Headheight setting for fancyhdr
8 % - Fontfamily settings for CJK (Chinese, Japanese, and Korean) translations
19 % - Redefine low-level commands defined in report.cls.
20 % - Indent of 2 chars is preserved for ease of comparison.
22 % Width of page number (\@pnumwidth): 1.55em -> 2.7em
23 % Width of chapter number: 1.5em -> 2.4em
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| /Documentation/RCU/Design/Requirements/ |
| D | Requirements.rst | 16 ------------
18 Read-copy update (RCU) is a synchronization mechanism that is often used
19 as a replacement for reader-writer locking. RCU is unusual in that
20 updaters do not block readers, which means that RCU's read-side
28 thought of as an informal, high-level specification for RCU. It is
40 #. `Fundamental Non-Requirements`_
42 #. `Quality-of-Implementation Requirements`_
44 #. `Software-Engineering Requirements`_
53 ------------------------
58 #. `Grace-Period Guarantee`_
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| /Documentation/networking/ |
| D | ipvs-sysctl.rst | 1 .. SPDX-License-Identifier: GPL-2.0
4 IPvs-sysctl
10 am_droprate - INTEGER
16 amemthresh - INTEGER
25 backup_only - BOOLEAN
26 - 0 - disabled (default)
27 - not 0 - enabled
32 conn_reuse_mode - INTEGER
33 1 - default
52 conntrack - BOOLEAN
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| /Documentation/networking/device_drivers/ethernet/3com/ |
| D | vortex.rst | 1 .. SPDX-License-Identifier: GPL-2.0
20 - Andrew Morton
21 - Netdev mailing list <netdev@vger.kernel.org>
22 - Linux kernel mailing list <linux-kernel@vger.kernel.org>
28 Since kernel 2.3.99-pre6, this driver incorporates the support for the
29 3c575-series Cardbus cards which used to be handled by 3c575_cb.c.
33 - 3c590 Vortex 10Mbps
34 - 3c592 EISA 10Mbps Demon/Vortex
35 - 3c597 EISA Fast Demon/Vortex
36 - 3c595 Vortex 100baseTx
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| /Documentation/trace/ |
| D | tracepoint-analysis.rst | 27 ----------------------
32 $ find /sys/kernel/tracing/events -type d
37 ----------------------------------------
55 3.1 System-Wide Event Enabling
56 ------------------------------
59 can be enabled system-wide. A short example of enabling all events related
62 $ for i in `find /sys/kernel/tracing/events -name "enable" | grep mm_`; do echo 1 > $i; done
64 3.2 System-Wide Event Enabling with SystemTap
65 ---------------------------------------------
79 printf ("%-25s %-s\n", "#Pages Allocated", "Process Name")
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| /Documentation/filesystems/xfs/ |
| D | xfs-delayed-logging-design.rst | 1 .. SPDX-License-Identifier: GPL-2.0
33 details logged are made up of the changes to in-core structures rather than
34 on-disk structures. Other objects - typically buffers - have their physical
64 place. This means that permanent transactions can be used for one-shot
65 modifications, but one-shot reservations cannot be used for permanent
68 In the code, a one-shot transaction pattern looks somewhat like this::
97 While this might look similar to a one-shot transaction, there is an important
113 individual modification is atomic, the chain is *not atomic*. If we crash half
123 the on-disk journal.
165 transaction, we have to reserve enough space to record a full leaf-to-root split
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| /Documentation/admin-guide/ |
| D | kernel-parameters.txt | 16 force -- enable ACPI if default was off
17 on -- enable ACPI but allow fallback to DT [arm64,riscv64]
18 off -- disable ACPI if default was on
19 noirq -- do not use ACPI for IRQ routing
20 strict -- Be less tolerant of platforms that are not
22 rsdt -- prefer RSDT over (default) XSDT
23 copy_dsdt -- copy DSDT to memory
24 nospcr -- disable console in ACPI SPCR table as
41 If set to vendor, prefer vendor-specific driver
73 Documentation/firmware-guide/acpi/debug.rst for more information about
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| /Documentation/networking/device_drivers/ethernet/stmicro/ |
| D | stmmac.rst | 1 .. SPDX-License-Identifier: GPL-2.0+
13 - In This Release
14 - Feature List
15 - Kernel Configuration
16 - Command Line Parameters
17 - Driver Information and Notes
18 - Debug Information
19 - Support
33 (and older) and DesignWare(R) Cores Ethernet Quality-of-Service version 4.0
35 DesignWare(R) Cores XGMAC - 10G Ethernet MAC and DesignWare(R) Cores
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| /Documentation/sound/kernel-api/ |
| D | writing-an-alsa-driver.rst | 11 Architecture) <http://www.alsa-project.org/>`__ driver. The document
19 low-level driver implementation details. It only describes the standard
26 -------
56 --------------
60 sub-directories contain different modules and are dependent upon the
74 This directory and its sub-directories are for the ALSA sequencer. This
76 as snd-seq-midi, snd-seq-virmidi, etc. They are compiled only when
85 -----------------
88 to be exported to user-space, or included by several files in different
94 -----------------
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| /Documentation/driver-api/media/drivers/ |
| D | zoran.rst | 1 .. SPDX-License-Identifier: GPL-2.0
8 website: http://mjpeg.sourceforge.net/driver-zoran/
12 --------------------------
15 ------------------------
28 Drivers to use: videodev, i2c-core, i2c-algo-bit,
31 Inputs/outputs: Composite and S-video
45 Drivers to use: videodev, i2c-core, i2c-algo-bit,
49 Six physical inputs. 1-6 are composite,
50 1-2, 3-4, 5-6 doubles as S-video,
51 1-3 triples as component.
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| /Documentation/sound/ |
| D | alsa-configuration.rst | 2 Advanced Linux Sound Architecture - Driver Configuration guide
38 ----------
47 limiting card index for auto-loading (1-8);
49 For auto-loading more than one card, specify this option
50 together with snd-card-X aliases.
63 Module snd-pcm-oss
64 ------------------
86 regarding opening the device. When this option is non-zero,
90 Module snd-rawmidi
91 ------------------
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