| /linux/Documentation/devicetree/bindings/input/ |
| H A D | cirrus,ep9307-keypad.yaml | 1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/input/cirrus,ep9307-keypad.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Alexander Sverdlin <alexander.sverdlin@gmail.com>
13 - $ref: /schemas/input/matrix-keymap.yaml#
16 The KPP is designed to interface with a keypad matrix with 2-point contact
17 or 3-point contact keys. The KPP is designed to simplify the software task
24 - const: cirrus,ep9307-keypad
25 - items:
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| /linux/Documentation/devicetree/bindings/display/bridge/ |
| H A D | analogix,anx7625.yaml | 1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
4 ---
6 $schema: http://devicetree.org/meta-schemas/core.yaml#
11 - Xin Ji <xji@analogixsemi.com>
14 The ANX7625 is an ultra-low power 4K Mobile HD Transmitter
15 designed for portable devices.
28 enable-gpios:
32 reset-gpios:
36 vdd10-supply:
39 vdd18-supply:
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| /linux/Documentation/networking/ |
| H A D | vxlan.rst | 1 .. SPDX-License-Identifier: GPL-2.0
7 The VXLAN protocol is a tunnelling protocol designed to solve the
20 use of statically-configured forwarding entries.
34 the IANA-assigned value of 4789. The Linux implementation of VXLAN
35 pre-dates the IANA's selection of a standard destination port number
36 and uses the Linux-selected value by default to maintain backwards
45 # ip -d link show vxlan0
62 The following NIC features may indicate support for UDP tunnel-related
66 - `tx-udp_tnl-segmentation`
67 - `tx-udp_tnl-csum-segmentation`
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| H A D | tls-handshake.rst | 1 .. SPDX-License-Identifier: GPL-2.0
4 In-Kernel TLS Handshake
11 over TCP. TLS provides end-to-end data integrity and confidentiality in
20 kernel. The API described here is designed to hide the details of those
21 implementations so that in-kernel TLS consumers do not need to be
46 A kernel TLS consumer initiates a client-side TLS handshake on an open
50 .. code-block:: c
68 instantiated a struct file in sock->file.
75 The consumer can provide a NUL-terminated hostname in the @ta_peername
85 keys, and pre-shared keys are provided to the handshake agent in keys
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| /linux/drivers/platform/x86/intel/int3472/ |
| H A D | tps68470.c | 1 // SPDX-License-Identifier: GPL-2.0
23 { .name = "tps68470-gpio" },
54 /** skl_int3472_tps68470_calc_type: Check what platform a device is designed for
61 * 1. No CLDB - likely ACPI tables designed for ChromeOS. We
64 * 2. CLDB, with control_logic_type = 2 - probably ACPI tables
65 * made for Windows 2-in-1 platforms. Register pdevs for GPIO,
74 * * -EINVAL Where @adev has an object named CLDB but it does not conform to
87 if (ret && ret != -ENODEV) in skl_int3472_tps68470_calc_type()
94 return -EINVAL; in skl_int3472_tps68470_calc_type()
117 return -ENODEV; in skl_int3472_fill_clk_pdata()
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| /linux/Documentation/core-api/ |
| H A D | maple_tree.rst | 1 .. SPDX-License-Identifier: GPL-2.0+
13 The Maple Tree is a B-Tree data type which is optimized for storing
14 non-overlapping ranges, including ranges of size 1. The tree was designed to
17 entry in a cache-efficient manner. The tree can also be put into an RCU-safe
22 The Maple Tree maintains a small memory footprint and was designed to use
24 use the normal API. An :ref:`maple-tree-advanced-api` exists for more complex
34 :ref:`maple-tree-advanced-api`, but are blocked by the normal API.
39 Pre-allocating of nodes is also supported using the
40 :ref:`maple-tree-advanced-api`. This is useful for users who must guarantee a
45 .. _maple-tree-normal-api:
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| H A D | genericirq.rst | 7 :Copyright: |copy| 2005-2010: Thomas Gleixner
8 :Copyright: |copy| 2005-2006: Ingo Molnar
13 The generic interrupt handling layer is designed to provide a complete
29 __do_IRQ() super-handler, which is able to deal with every type of
36 - Level type
38 - Edge type
40 - Simple type
44 - Fast EOI type
46 In the SMP world of the __do_IRQ() super-handler another type was
49 - Per CPU type
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| /linux/Documentation/driver-api/rapidio/ |
| H A D | rapidio.rst | 5 The RapidIO standard is a packet-based fabric interconnect standard designed for
8 is publicly available for download from the RTA web-site [1].
17 into the kernel similarly to other buses by defining RapidIO-specific device and
21 architecture-specific interfaces that provide support for common RapidIO
33 ---------------
50 ----------
54 structure. Devices form one global device list and per-network device lists
58 ----------
68 specific switch drivers that are designed to provide hardware-specific
72 -----------
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| /linux/Documentation/admin-guide/aoe/ |
| H A D | aoe.rst | 11 http://support.coraid.com/support/linux/EtherDrive-2.6-HOWTO.html
16 http://support.coraid.com/support/linux/EtherDrive-2.6-HOWTO-5.html#ss5.19
18 The aoetools are userland programs that are designed to work with this
23 The scripts in this Documentation/admin-guide/aoe directory are intended to
35 There is a udev-install.sh script that shows how to install these
86 a convenient way. Users with aoetools should use the aoe-stat
89 root@makki root# sh Documentation/admin-guide/aoe/status.sh
114 whitespace-separated list. Unlike the old character device, the
118 interfaces. The aoetools package provides an aoe-discover script
125 There is a boot option for the built-in aoe driver and a
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| /linux/Documentation/w1/slaves/ |
| H A D | w1_therm.rst | 16 -----------
49 -1 if at least one sensor still in conversion, 1 if conversion is complete
72 the sensor. Resolution is reset when the sensor gets power-cycled.
81 Some non-genuine DS18B20 chips are fixed in 12-bit mode only, so the actual
86 The write-only sysfs entry ``eeprom_cmd`` is an alternative for EEPROM operations.
94 Values shall be space separated and in the device range (typical -55 degC
106 be force-enabled.
113 sufficient. The strong pullup is designed to provide the additional
118 location of the chip in the 1-wire bus without needing pre-existing
133 Documentation/ABI/testing/sysfs-driver-w1_therm
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| /linux/crypto/ |
| H A D | Kconfig | 1 # SPDX-License-Identifier: GPL-2.0
156 cbc(aes), and the support for the crypto self-tests.
178 bool "Enable cryptographic self-tests"
181 Enable the cryptographic self-tests.
183 The cryptographic self-tests run at boot time, or at algorithm
188 - Development and pre-release testing. In this case, also enable
192 - Production kernels, to help prevent buggy drivers from being used
193 and/or meet FIPS 140-3 pre-operational testing requirements. In
197 bool "Enable the full set of cryptographic self-tests"
200 Enable the full set of cryptographic self-tests for each algorithm.
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| /linux/drivers/watchdog/ |
| H A D | dw_wdt.c | 1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * Copyright 2010-2011 Picochip Ltd., Jamie Iles
104 return readl(dw_wdt->regs + WDOG_CONTROL_REG_OFFSET) & in dw_wdt_is_enabled()
112 val = readl(dw_wdt->regs + WDOG_CONTROL_REG_OFFSET); in dw_wdt_update_mode()
117 writel(val, dw_wdt->regs + WDOG_CONTROL_REG_OFFSET); in dw_wdt_update_mode()
119 dw_wdt->rmod = rmod; in dw_wdt_update_mode()
133 if (dw_wdt->timeouts[idx].sec >= timeout) in dw_wdt_find_best_top()
138 --idx; in dw_wdt_find_best_top()
140 *top_val = dw_wdt->timeouts[idx].top_val; in dw_wdt_find_best_top()
142 return dw_wdt->timeouts[idx].sec; in dw_wdt_find_best_top()
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| /linux/Documentation/firmware-guide/acpi/ |
| H A D | osi.rst | 1 .. SPDX-License-Identifier: GPL-2.0
22 Linux runs on two groups of machines -- those that are tested by the OEM
51 _OSI("Linux-OEM-my_interface_name")
52 where 'OEM' is needed if this is an OEM-specific hook,
54 quirk, a bug, or a bug-fix.
60 any custom Linux-* strings by default.
80 necessary to make the platform compatible with that pre-existing OS.
90 _OS "Microsoft Windows NT", though it seems somewhat far-fetched
109 For an OS-specific interface, the ACPI spec said that the BIOS and the OS
110 were to agree on a string of the form such as "Windows-interface_name".
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| /linux/Documentation/target/ |
| H A D | tcmu-design.rst | 19 2) Writing a user pass-through handler
29 TCM is another name for LIO, an in-kernel iSCSI target (server).
38 built-in modules are implemented entirely as kernel code.
41 ----------
52 use case that other non-kernel target solutions, such as tgt, are able
55 in these non-traditional networked storage systems, while still only
65 kernel, another approach is to create a userspace pass-through
70 --------
83 ------------------
85 - Good performance: high throughput, low latency
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| /linux/Documentation/filesystems/ |
| H A D | orangefs.rst | 1 .. SPDX-License-Identifier: GPL-2.0
7 OrangeFS is an LGPL userspace scale-out parallel storage system. It is ideal
51 On Fedora, install orangefs and orangefs-server::
53 dnf -y install orangefs orangefs-server
64 pvfs2-client-core.
68 pvfs2-server -f /etc/orangefs/orangefs.conf
72 systemctl start orangefs-server
76 pvfs2-ping -m /pvfsmnt
81 systemctl start orangefs-client
85 mount -t pvfs2 tcp://localhost:3334/orangefs /pvfsmnt
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| /linux/Documentation/security/ |
| H A D | siphash.rst | 2 SipHash - a short input PRF
7 SipHash is a cryptographically secure PRF -- a keyed hash function -- that
8 performs very well for short inputs, hence the name. It was designed by
9 cryptographers Daniel J. Bernstein and Jean-Philippe Aumasson. It is intended
49 will constant fold at compile-time and automatically choose one of the
61 get_random_bytes(&table->key, sizeof(table->key));
66 …return &table->hashtable[siphash(input, sizeof(*input), &table->key) & (HASH_SIZE(table->hashtable…
74 SipHash has a very high security margin, with its 128-bit key. So long as the
79 Linux implements the "2-4" variant of SipHash.
81 Struct-passing Pitfalls
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| /linux/Documentation/fb/ |
| H A D | modedb.rst | 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
23 <xres>x<yres>[M][R][-<bpp>][@<refresh>][i][m][eDd]
24 <name>[-<bpp>][@<refresh>]
31 - NSTC: 480i output, with the CCIR System-M TV mode and NTSC color encoding
32 - NTSC-J: 480i output, with the CCIR System-M TV mode, the NTSC color
34 - PAL: 576i output, with the CCIR System-B TV mode and PAL color encoding
35 - PAL-M: 480i output, with the CCIR System-M TV mode and PAL color encoding
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| /linux/Documentation/networking/device_drivers/ethernet/cirrus/ |
| H A D | cs89x0.rst | 1 .. 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
68 computers on 10 Mbps Ethernet networks. The adapters are designed for operation
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
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| /linux/Documentation/driver-api/ |
| H A D | xillybus.rst | 10 - 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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| /linux/tools/power/pm-graph/ |
| H A D | README | 8 pm-graph: suspend/resume/boot timing analysis tools
11 …Home Page: https://www.intel.com/content/www/us/en/developer/topic-technology/open/pm-graph/overvi…
13 Report bugs/issues at bugzilla.kernel.org Tools/pm-graph
14 - https://bugzilla.kernel.org/buglist.cgi?component=pm-graph&product=Tools
17 - Getting Started:
20 - Feature Summary:
21 https://www.intel.com/content/www/us/en/developer/topic-technology/open/pm-graph/features.html
23 - upstream version in git:
24 git clone https://github.com/intel/pm-graph/
27 - Overview
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| /linux/Documentation/kbuild/ |
| H A D | gendwarfksyms.rst | 18 -----
23 Usage: gendwarfksyms [options] elf-object-file ... < symbol-list
26 -d, --debug Print debugging information
27 --dump-dies Dump DWARF DIE contents
28 --dump-die-map Print debugging information about die_map changes
29 --dump-types Dump type strings
30 --dump-versions Dump expanded type strings used for symbol versions
31 -s, --stable Support kABI stability features
32 -T, --symtypes file Write a symtypes file
33 -h, --help Print this message
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| /linux/sound/soc/sof/intel/ |
| H A D | cnl.c | 1 // SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause)
21 #include "../ipc4-priv.h"
24 #include "hda-ipc.h"
25 #include "../sof-audio.h"
66 if (likely(sdev->fw_state == SOF_FW_BOOT_COMPLETE)) { in cnl_ipc4_irq_thread()
67 struct sof_ipc4_msg *data = sdev->ipc->msg.reply_data; in cnl_ipc4_irq_thread()
69 data->primary = primary; in cnl_ipc4_irq_thread()
70 data->extension = extension; in cnl_ipc4_irq_thread()
72 spin_lock_irq(&sdev->ipc_lock); in cnl_ipc4_irq_thread()
76 snd_sof_ipc_reply(sdev, data->primary); in cnl_ipc4_irq_thread()
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| /linux/Documentation/crypto/ |
| H A D | asymmetric-keys.rst | 1 .. SPDX-License-Identifier: GPL-2.0
4 Asymmetric / Public-key Cryptography Key Type
9 - Overview.
10 - Key identification.
11 - Accessing asymmetric keys.
12 - Signature verification.
13 - Asymmetric key subtypes.
14 - Instantiation data parsers.
15 - Keyring link restrictions.
21 The "asymmetric" key type is designed to be a container for the keys used in
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| /linux/Documentation/block/ |
| H A D | ublk.rst | 1 .. SPDX-License-Identifier: GPL-2.0
13 new virtual block device such as ublk-qcow2 (there are several attempts of
18 - They can be written many programming languages.
19 - They can use libraries that are not available in the kernel.
20 - They can be debugged with tools familiar to application developers.
21 - Crashes do not kernel panic the machine.
22 - Bugs are likely to have a lower security impact than bugs in kernel
24 - They can be installed and updated independently of the kernel.
25 - They can be used to simulate block device easily with user specified
42 ``/dev/ublkb*`` is driven by blk-mq request-based driver. Each request is
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| /linux/Documentation/userspace-api/ |
| H A D | landlock.rst | 1 .. SPDX-License-Identifier: GPL-2.0
2 .. Copyright © 2017-2020 Mickaël Salaün <mic@digikod.net>
3 .. Copyright © 2019-2020 ANSSI
4 .. Copyright © 2021-2022 Microsoft Corporation
16 new security layers in addition to the existing system-wide access-controls.
23 ``dmesg | grep landlock || journalctl -kb -g landlock`` .
48 ----------------------------------------
59 to be explicit about the denied-by-default access rights.
61 .. code-block:: c
90 on, it is safer to follow a best-effort security approach. Indeed, we
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