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/Documentation/devicetree/bindings/mtd/
Dti,elm.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Texas Instruments Error Location Module (ELM).
10 - Roger Quadros <rogerq@kernel.org>
13 ELM module is used together with GPMC and NAND Flash to detect
14 errors and the location of the error based on BCH algorithms
20 - ti,am3352-elm
21 - ti,am64-elm
31 description: Functional clock.
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Datmel-nand.txt4 Documentation/devicetree/bindings/memory-controllers/atmel,ebi.txt).
11 - compatible: should be one of the following
12 "atmel,at91rm9200-nand-controller"
13 "atmel,at91sam9260-nand-controller"
14 "atmel,at91sam9261-nand-controller"
15 "atmel,at91sam9g45-nand-controller"
16 "atmel,sama5d3-nand-controller"
17 "microchip,sam9x60-nand-controller"
18 - ranges: empty ranges property to forward EBI ranges definitions.
19 - #address-cells: should be set to 2.
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/Documentation/userspace-api/media/cec/
Dcec-ioc-receive.rst1 .. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
14 CEC_RECEIVE, CEC_TRANSMIT - Receive or transmit a CEC message
42 If the file descriptor is in non-blocking mode and there are no received
43 messages pending, then it will return -1 and set errno to the ``EAGAIN``
44 error code. If the file descriptor is in blocking mode and ``timeout``
45 is non-zero and no message arrived within ``timeout`` milliseconds, then
46 it will return -1 and set errno to the ``ETIMEDOUT`` error code.
51 be 0, ``tx_status`` will be 0 and ``rx_status`` will be non-zero).
52 2. the transmit result of an earlier non-blocking transmit (the ``sequence``
53 field will be non-zero, ``tx_status`` will be non-zero and ``rx_status``
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/Documentation/devicetree/bindings/rng/
Dst,stm32-rng.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/rng/st,stm32-rng.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
14 - Lionel Debieve <lionel.debieve@foss.st.com>
19 - st,stm32-rng
20 - st,stm32mp13-rng
31 clock-error-detect:
33 description: If set enable the clock detection management
35 st,rng-lock-conf:
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/Documentation/i2c/
Dgpio-fault-injection.rst12 'i2c-fault-injector' subdirectory in the Kernel debugfs filesystem, usually
15 injection. They will be described now along with their intended use-cases.
21 -----
26 because the bus master under test will not be able to clock. It should detect
27 the condition of SCL being unresponsive and report an error to the upper
31 -----
36 master under test should detect this condition and trigger a bus recovery (see
48 there are I2C client devices which detect a stuck SDA on their side and release
50 device deglitching and monitoring the I2C bus. It could also detect a stuck SDA
56 --------------------------
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/Documentation/userspace-api/gpio/
Dgpio-v2-get-line-ioctl.rst1 .. SPDX-License-Identifier: GPL-2.0
12 GPIO_V2_GET_LINE_IOCTL - Request a line or lines from the kernel.
37 :ref:`gpio-v2-line-request`.
41 as possible. e.g. gpio-v2-line-get-values-ioctl.rst will read all the
49 Requesting a line already in use is an error (**EBUSY**).
53 .. _gpio-v2-get-line-config-rules:
56 -------------------
63 and the line is requested "as-is" to allow reading of the line value
69 If none are set then the line is assumed push-pull.
76 ``GPIO_V2_LINE_FLAG_INPUT`` to be set and may be combined to detect both rising
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/Documentation/admin-guide/RAS/
Dmain.rst1 .. SPDX-License-Identifier: GPL-2.0
21 * Enhanced by features that help to avoid, detect and repair hardware faults
27 * Often uses mechanisms to detect and correct hardware faults in
37 -------------
41 also provide mechanisms to detect hardware degradation, in order to warn
47 * CPU – detect errors at instruction execution and at L1/L2/L3 caches;
48 * Memory – add error correction logic (ECC) to detect and correct errors;
51 Self-Monitoring, Analysis and Reporting Technology (SMART).
53 By monitoring the number of occurrences of error detections, it is possible
59 ---------------
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/Documentation/admin-guide/media/
Dcec.rst1 .. SPDX-License-Identifier: GPL-2.0
12 - Exynos4
13 - Exynos5
14 - STIH4xx HDMI CEC
15 - V4L2 adv7511 (same HW, but a different driver from the drm adv7511)
16 - stm32
17 - Allwinner A10 (sun4i)
18 - Raspberry Pi
19 - dw-hdmi (Synopsis IP)
20 - amlogic (meson ao-cec and ao-cec-g12a)
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/Documentation/userspace-api/media/v4l/
Dvidioc-g-dv-timings.rst1 .. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
13 VIDIOC_G_DV_TIMINGS - VIDIOC_S_DV_TIMINGS - VIDIOC_SUBDEV_G_DV_TIMINGS - VIDIOC_SUBDEV_S_DV_TIMINGS…
53 values are not correct, the driver returns ``EINVAL`` error code.
56 registered in read-only mode is not allowed. An error is returned and the errno
57 variable is set to ``-EPERM``.
59 The ``linux/v4l2-dv-timings.h`` header can be used to get the timings of
63 ``V4L2_IN_CAP_DV_TIMINGS`` flag), then ``ENODATA`` error code is returned.
68 On success 0 is returned, on error -1 and the ``errno`` variable is set
69 appropriately. The generic error codes are described at the
70 :ref:`Generic Error Codes <gen-errors>` chapter.
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Dvidioc-dqevent.rst1 .. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
13 VIDIOC_DQEVENT - Dequeue event
45 .. flat-table:: struct v4l2_event
46 :header-rows: 0
47 :stub-columns: 0
50 * - __u32
51 - ``type``
52 - Type of the event, see :ref:`event-type`.
53 * - union {
54 - ``u``
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/Documentation/networking/
Dtimestamping.rst1 .. SPDX-License-Identifier: GPL-2.0
43 -------------------------------------------------------------
59 -------------------------------------------------------------------
72 ----------------------------------------------------------------------
83 sk_buffs (1.3.1), timestamp reporting to the socket's error
138 over-report measurement, because the timestamp is generated when all
174 scheduler. In that case timestamps will be queued onto the error
181 is derived from a per-socket u32 counter (that wraps). For datagram
208 a timestamp with counter N-1. SOF_TIMESTAMPING_OPT_ID_TCP
258 received the packet and its length at layer 2. A valid (non-zero)
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Dcan.rst2 SocketCAN - Controller Area Network
20 .. _socketcan-motivation:
29 functionality. Usually, there is only a hardware-specific device
32 Queueing of frames and higher-level transport protocols like ISO-TP
34 character-device implementations support only one single process to
47 protocol family module and also vice-versa. Also, the protocol family
57 communicate using a specific transport protocol, e.g. ISO-TP, just
60 CAN-IDs, frames, etc.
62 Similar functionality visible from user-space could be provided by a
74 * **Abstraction:** In most existing character-device implementations, the
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/Documentation/scsi/
DChangeLog.lpfc2 * Please read the associated RELEASE-NOTES file !!!
8 * Fixed build warning for 2.6.12-rc2 kernels: mempool_alloc now
19 * Removed FC_TRANSPORT_PATCHESxxx defines. They're in 2.6.12-rc1.
26 * Added PCI ID for LP10000-S.
28 find command in both TX and TX completion queues. Return ERROR
31 * Zero-out response sense length in lpfc_scsi_prep_cmnd to prevent
33 - was causing spurious 0710 messages.
55 - stop using volatile. if you need special ordering use memory
57 - switch lpfc_sli_pcimem_bcopy to take void * arguments.
58 - remove typecast for constants - a U postfix marks them
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DChangeLog.sym53c8xx1 Sat May 12 12:00 2001 Gerard Roudier (groudier@club-internet.fr)
2 * version sym53c8xx-1.7.3c
3 - Ensure LEDC bit in GPCNTL is cleared when reading the NVRAM.
4 Fix sent by Stig Telfer <stig@api-networks.com>.
5 - Backport from SYM-2 the work-around that allows to support
7 - Check that we received at least 8 bytes of INQUIRY response
9 - Define scsi_set_pci_device() as nil for kernel < 2.4.4.
10 - + A couple of minor changes.
12 Sat Apr 7 19:30 2001 Gerard Roudier (groudier@club-internet.fr)
13 * version sym53c8xx-1.7.3b
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Dncr53c8xx.rst1 .. SPDX-License-Identifier: GPL-2.0
11 95170 DEUIL LA BARRE - FRANCE
64 10.4 PCI configuration fix-up boot option
79 15.2 Understanding hardware error reports
81 16.1 Synchronous timings for 53C875 and 53C860 Ultra-SCSI controllers
82 16.2 Synchronous timings for fast SCSI-2 53C8XX controllers
97 - Gerard Roudier <groudier@free.fr>
101 - Wolfgang Stanglmeier <wolf@cologne.de>
102 - Stefan Esser <se@mi.Uni-Koeln.de>
106 - ncr53c8xx generic driver that supports all the SYM53C8XX family including
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/Documentation/driver-api/
Dpps.rst1 .. SPDX-License-Identifier: GPL-2.0
4 PPS - Pulse Per Second
22 --------
29 can use it to adjust system clock time.
32 Carrier Detect pin) or to a parallel port (ACK-pin) or to a special
38 GPS receiver as PPS source, to obtain a wallclock-time with
39 sub-millisecond synchronisation to UTC.
43 ------------------
46 CPU GPIO-Pin as physical link to the signal, I encountered a deeper
56 purpose GPIO line. In this case even basic file-related functionality
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/Documentation/devicetree/bindings/usb/
Dsnps,dwc3.yaml1 # SPDX-License-Identifier: GPL-2.0
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Felipe Balbi <balbi@kernel.org>
14 be presented as a standalone DT node with an optional vendor-specific
18 - $ref: usb-drd.yaml#
19 - if:
25 - dr_mode
29 $ref: usb-xhci.yaml#
35 - const: snps,dwc3
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/Documentation/virt/kvm/x86/
Dtimekeeping.rst1 .. SPDX-License-Identifier: GPL-2.0
4 Timekeeping Virtualization for X86-Based Architectures
32 information relevant to KVM and hardware-based virtualization.
38 KVM clock are special enough to warrant a full exposition and are described in
41 2.1. i8254 - PIT
42 ----------------
45 or PIT. The PIT has a fixed frequency 1.193182 MHz base clock and three
46 channels which can be programmed to deliver periodic or one-shot interrupts.
53 The PIT uses I/O ports 0x40 - 0x43. Access to the 16-bit counters is done
59 -------------- ----------------
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/Documentation/networking/device_drivers/ethernet/cirrus/
Dcs89x0.rst1 .. SPDX-License-Identifier: GPL-2.0
33 2.1 CS8900-based Adapter Configuration
34 2.2 CS8920-based Adapter Configuration
46 5.2.1 Diagnostic Self-Test
66 The CS8900-based ISA Ethernet Adapters from Cirrus Logic follow
67 IEEE 802.3 standards and support half or full-duplex operation in ISA bus
69 in 16-bit ISA or EISA bus expansion slots and are available in
70 10BaseT-only or 3-media configurations (10BaseT, 10Base2, and AUI for 10Base-5
73 CS8920-based adapters are similar to the CS8900-based adapter with additional
85 or loaded at run-time as a device driver module.
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/Documentation/input/devices/
Datarikbd.rst12 provides a convenient connection point for a mouse and switch-type joysticks.
13 The ikbd processor also maintains a time-of-day clock with one second
18 The ikbd communicates with the main processor over a high speed bi-directional
41 0xF8-0xFB relative mouse position records (lsbs determined by
43 0xFC time-of-day
67 ---------------------------
92 +127...-128 range, the motion is broken into multiple packets.
97 ---------------------------
104 ---------------------
120 ------------------------
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/Documentation/sound/
Dalsa-configuration.rst2 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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/Documentation/virt/kvm/
Dapi.rst1 .. SPDX-License-Identifier: GPL-2.0
4 The Definitive KVM (Kernel-based Virtual Machine) API Documentation
13 - System ioctls: These query and set global attributes which affect the
17 - VM ioctls: These query and set attributes that affect an entire virtual
24 - vcpu ioctls: These query and set attributes that control the operation
32 - device ioctls: These query and set attributes that control the operation
80 facility that allows backward-compatible extensions to the API to be
104 the ioctl returns -ENOTTY.
117 the return value. General error numbers (EBADF, ENOMEM, EINVAL)
122 -----------------------
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/Documentation/trace/
Dftrace.rst2 ftrace - Function Tracer
13 - Written for: 2.6.28-rc2
14 - Updated for: 3.10
15 - Updated for: 4.13 - Copyright 2017 VMware Inc. Steven Rostedt
16 - Converted to rst format - Changbin Du <changbin.du@intel.com>
19 ------------
24 performance issues that take place outside of user-space.
41 ----------------------
43 See Documentation/trace/ftrace-design.rst for details for arch porters and such.
47 ---------------
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/Documentation/admin-guide/laptops/
Dthinkpad-acpi.rst9 - Borislav Deianov <borislav@users.sf.net>
10 - Henrique de Moraes Holschuh <hmh@hmh.eng.br>
12 http://ibm-acpi.sf.net/
19 This driver used to be named ibm-acpi until kernel 2.6.21 and release
20 0.13-20070314. It used to be in the drivers/acpi tree, but it was
21 moved to the drivers/misc tree and renamed to thinkpad-acpi for kernel
25 The driver is named "thinkpad-acpi". In some places, like module
29 "tpacpi" is used as a shorthand where "thinkpad-acpi" would be too
33 ------
38 - Fn key combinations
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/Documentation/sound/kernel-api/
Dwriting-an-alsa-driver.rst11 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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