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/linux-6.12.1/arch/riscv/kernel/
Dcpufeature.c1 // SPDX-License-Identifier: GPL-2.0-only
29 #define NUM_ALPHA_EXTS ('z' - 'a' + 1)
36 /* Per-cpu ISA extensions. */
40 * riscv_isa_extension_base() - Get base extension word
56 * __riscv_isa_extension_available() - Check whether given extension
80 pr_err("Zicbom detected in ISA string, disabling as no cbom-block-size found\n"); in riscv_ext_zicbom_validate()
81 return -EINVAL; in riscv_ext_zicbom_validate()
84 pr_err("Zicbom disabled as cbom-block-size present, but is not a power-of-2\n"); in riscv_ext_zicbom_validate()
85 return -EINVAL; in riscv_ext_zicbom_validate()
94 pr_err("Zicboz detected in ISA string, disabling as no cboz-block-size found\n"); in riscv_ext_zicboz_validate()
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/linux-6.12.1/drivers/tty/serial/8250/
DKconfig1 # SPDX-License-Identifier: GPL-2.0
13 This selects whether you want to include the driver for the standard
14 serial ports. The standard answer is Y. People who might say N
17 serial mouse and don't intend to use their machine's standard serial
23 non-standard serial ports, since the configuration information will
35 modems and similar devices connecting to the standard serial ports.
51 If you did not notice yet and/or you have userspace from pre-3.7, it
59 This builds standard PNP serial support. You may be able to
82 standard 16550A serial port, however the device may not function
143 This builds standard PCI serial support. You may be able to
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/linux-6.12.1/sound/soc/atmel/
DKconfig1 # SPDX-License-Identifier: GPL-2.0-only
3 tristate "SoC Audio for the Atmel System-on-Chip"
31 in PDC mode configured using audio-graph-card in device-tree.
40 in DMA mode configured using audio-graph-card in device-tree.
43 tristate "SoC Audio support for WM8731-based At91sam9g20 evaluation board"
49 Say Y if you want to add support for SoC audio on WM8731-based
63 tristate "SoC Audio support for WM8731-based at91sam9x5 board"
91 tristate "ASoC driver for the Axentia TSE-850"
98 Axentia TSE-850 with a PCM5142 codec.
110 tristate "Support for Mikroe-PROTO board"
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/linux-6.12.1/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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/linux-6.12.1/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.
19 Standard interface statistics
20 -----------------------------
22 There are multiple interfaces to reach the standard statistics.
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.
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Diso15765-2.rst1 .. SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause)
4 ISO 15765-2 (ISO-TP)
10 ISO 15765-2, also known as ISO-TP, is a transport protocol specifically defined
12 industry, for example as the transport protocol for UDSonCAN (ISO 14229-3) or
13 emission-related diagnostic services (ISO 15031-5).
15 ISO-TP can be used both on CAN CC (aka Classical CAN) and CAN FD (CAN with
21 -------------------
23 * ISO 15765-2:2024 : Road vehicles - Diagnostic communication over Controller
27 ----------
29 In its simplest form, ISO-TP is based on two kinds of addressing modes for the
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/linux-6.12.1/Documentation/userspace-api/media/v4l/
Dpixfmt-intro.rst1 .. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
4 Standard Image Formats
8 necessary to have standard image data formats which both sides will
10 section is intended to be an unambiguous specification of the standard
13 V4L2 drivers are not limited to these formats, however. Driver-specific
15 to convert images to one of the standard formats when needed. But the
22 Even so, ultimately, some standard formats are needed, so the V4L2
23 specification would not be complete without well-defined standard
26 The V4L2 standard formats are mainly uncompressed formats. The pixels
40 :ref:`four character (FourCC) codes <v4l2-fourcc>` which are also
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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
52 Since this is a write-only ioctl, it does not return the actually
68 .. flat-table:: struct v4l2_tuner
69 :header-rows: 0
70 :stub-columns: 0
72 * - __u32
73 - ``index``
74 - :cspan:`1` Identifies the tuner, set by the application.
75 * - __u8
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/linux-6.12.1/drivers/firmware/arm_scmi/
Dprotocols.h1 /* SPDX-License-Identifier: GPL-2.0 */
42 * struct scmi_msg_resp_prot_version - Response for a message
59 * struct scmi_msg - Message(Tx/Rx) structure
70 * struct scmi_msg_hdr - Message(Tx/Rx) header
92 * struct scmi_xfer - Structure representing a message flow
97 * @rx: Receive message, the buffer should be pre-allocated to store
98 * message. If request-ACK protocol is used, we can reuse the same
111 * though the timed-out transaction will anyway cause the command
112 * request to be reported as failed by time-out, the underlying xfer
118 * - SCMI_XFER_SENT_OK -> SCMI_XFER_RESP_OK [ -> SCMI_XFER_DRESP_OK ]
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/linux-6.12.1/Documentation/devicetree/bindings/media/
Dcnm,wave521c.yaml1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Chips&Media Wave 5 Series multi-standard codec IP
10 - Nas Chung <nas.chung@chipsnmedia.com>
11 - Jackson Lee <jackson.lee@chipsnmedia.com>
14 The Chips&Media WAVE codec IP is a multi format video encoder/decoder
19 - enum:
20 - ti,j721s2-wave521c
21 - const: cnm,wave521c
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/linux-6.12.1/Documentation/devicetree/bindings/tpm/
Dtcg,tpm-tis-mmio.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/tpm/tcg,tpm-tis-mmio.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: MMIO-accessed Trusted Platform Module conforming to TCG TIS specification
10 - Lukas Wunner <lukas@wunner.de>
13 The Trusted Computing Group (TCG) has defined a multi-vendor standard
15 one of them being LPC (via MMIO). The standard is named:
17 …tps://trustedcomputinggroup.org/resource/pc-client-work-group-pc-client-specific-tpm-interface-spe…
22 - enum:
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Dtcg,tpm-tis-i2c.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/tpm/tcg,tpm-tis-i2c.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: I²C-attached Trusted Platform Module conforming to TCG TIS specification
10 - Lukas Wunner <lukas@wunner.de>
13 The Trusted Computing Group (TCG) has defined a multi-vendor standard
15 one of them being I²C. The standard is named:
17 …tps://trustedcomputinggroup.org/resource/pc-client-work-group-pc-client-specific-tpm-interface-spe…
19 The I²C interface was not originally part of the standard, but added
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Dtcg,tpm_tis-spi.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/tpm/tcg,tpm_tis-spi.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: SPI-attached Trusted Platform Module conforming to TCG TIS specification
10 - Lukas Wunner <lukas@wunner.de>
13 The Trusted Computing Group (TCG) has defined a multi-vendor standard
15 one of them being SPI. The standard is named:
17 …tps://trustedcomputinggroup.org/resource/pc-client-work-group-pc-client-specific-tpm-interface-spe…
22 - enum:
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/linux-6.12.1/Documentation/userspace-api/media/dvb/
Dnet.rst1 .. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
11 visible through the standard Linux network protocol stack.
15 - `Multi Protocol Encapsulation (MPE) <http://en.wikipedia.org/wiki/Multiprotocol_Encapsulation>`__
17 - `Ultra Lightweight Encapsulation (ULE) <http://en.wikipedia.org/wiki/Unidirectional_Lightweight_…
24 the standard ip tools (like ip, route, netstat, ifconfig, etc).
38 net-types
39 net-add-if
40 net-remove-if
41 net-get-if
/linux-6.12.1/drivers/media/platform/chips-media/coda/
DKconfig1 # SPDX-License-Identifier: GPL-2.0-only
4 tristate "Chips&Media Coda multi-standard codec IP"
15 H.264, MPEG-4, and other video formats.
/linux-6.12.1/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
26 `github <https://github.com/AspeedTech-BMC/openbmc/releases/>`__.
28 The ASPEED video driver implements the following driver-specific control:
31 ---------------------------
35 .. flat-table::
36 :header-rows: 0
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/linux-6.12.1/Documentation/networking/device_drivers/fddi/
Ddefza.rst1 .. SPDX-License-Identifier: GPL-2.0
4 Notes on the DEC FDDIcontroller 700 (DEFZA-xx) driver
10 DEC FDDIcontroller 700 is DEC's first-generation TURBOchannel FDDI
15 First is the SAS MMF DEFZA-AA option, the original design implementing
16 the standard MMF-PMD, however with a pair of ST connectors rather than
17 the usual MIC connector. The other one is the SAS ThinWire/STP DEFZA-CA
18 option, denoted 700-C, with the network medium selectable by a switch
19 between the DEC proprietary ThinWire-PMD using a BNC connector and the
20 standard STP-PMD using a DE-9F connector. This option can interface to
21 a DECconcentrator 500 device and, in the case of the STP-PMD, also other
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/linux-6.12.1/Documentation/input/devices/
Dbcm5974.rst3 ------------------------
5 ------------------------
7 :Copyright: |copy| 2008-2009 Henrik Rydberg <rydberg@euromail.se>
10 part of the touchd user-space driver project:
16 :Copyright: |copy| 2001-2004 Greg Kroah-Hartman (greg@kroah.com)
19 :Copyright: |copy| 2005 Frank Arnold (frank@scirocco-5v-turbo.de)
21 :Copyright: |copy| 2005 Michael Hanselmann (linux-kernel@hansmi.ch)
24 This driver adds support for the multi-touch trackpad on the new Apple
33 -----
40 --------
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/linux-6.12.1/drivers/hid/
Dhid-plantronics.c1 // SPDX-License-Identifier: GPL-2.0-or-later
6 * Copyright (c) 2015-2018 Terry Junge <terry.junge@plantronics.com>
12 #include "hid-ids.h"
37 #define PLT_ALLOW_CONSUMER (field->application == HID_CP_CONSUMERCONTROL && \
38 (usage->hid & HID_USAGE_PAGE) == HID_UP_CONSUMER)
60 unsigned long plt_type = drv_data->device_type; in plantronics_input_mapping()
63 if (field->application == HID_GD_JOYSTICK) in plantronics_input_mapping()
67 /* non-standard types or multi-HID interfaces - plt_type is PID */ in plantronics_input_mapping()
79 /* handle standard types - plt_type is 0xffa0uuuu or 0xffa2uuuu */ in plantronics_input_mapping()
80 /* 'basic telephony compliant' - allow default consumer page map */ in plantronics_input_mapping()
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/linux-6.12.1/Documentation/devicetree/bindings/watchdog/
Dkontron,sl28cpld-wdt.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/watchdog/kontron,sl28cpld-wdt.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Michael Walle <michael@walle.cc>
13 This module is part of the sl28cpld multi-function device. For more
17 - $ref: watchdog.yaml#
21 const: kontron,sl28cpld-wdt
26 kontron,assert-wdt-timeout-pin:
27 description: The SMARC standard defines a WDT_TIME_OUT# pin. If this
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/linux-6.12.1/Documentation/driver-api/pldmfw/
Dindex.rst1 .. SPDX-License-Identifier: GPL-2.0-only
8 the PLDM for Firmware Update standard
9 <https://www.dmtf.org/documents/pmci/pldm-firmware-update-specification-100>.
14 file-format
15 driver-ops
39 The PLDM file format uses packed binary data, with most multi-byte fields
50 unaligned access of multi-byte fields, and to properly convert from Little
71 6. After all components are programmed, perform any final device-specific
/linux-6.12.1/Documentation/devicetree/bindings/i2c/
Di2c-arb-gpio-challenge.yaml1 # SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
3 ---
4 $id: http://devicetree.org/schemas/i2c/i2c-arb-gpio-challenge.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: GPIO-based I2C Arbitration Using a Challenge & Response Mechanism
10 - Doug Anderson <dianders@chromium.org>
11 - Peter Rosin <peda@axentia.se>
18 standard I2C multi-master rules. Using GPIOs is generally useful in the case
20 standard multimaster mode not feasible.
23 * It is nonstandard (not using standard I2C multimaster)
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/linux-6.12.1/drivers/media/platform/chips-media/wave5/
Dwave5-helper.h1 /* SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause) */
3 * Wave5 series multi-standard codec IP - basic types
5 * Copyright (C) 2021-2023 CHIPS&MEDIA INC
11 #include "wave5-vpu.h"
/linux-6.12.1/Documentation/driver-api/media/drivers/
Dtuners.rst1 .. SPDX-License-Identifier: GPL-2.0
7 ------------------------
12 - L= LG_API (VHF_LO=0x01, VHF_HI=0x02, UHF=0x08, radio=0x04)
13 - P= PHILIPS_API (VHF_LO=0xA0, VHF_HI=0x90, UHF=0x30, radio=0x04)
14 - T= TEMIC_API (VHF_LO=0x02, VHF_HI=0x04, UHF=0x01)
15 - A= ALPS_API (VHF_LO=0x14, VHF_HI=0x12, UHF=0x11)
16 - M= PHILIPS_MK3 (VHF_LO=0x01, VHF_HI=0x02, UHF=0x04, radio=0x19)
19 -------------------
21 - Samsung Tuner identification: (e.g. TCPM9091PD27)
23 .. code-block:: none
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/linux-6.12.1/include/media/
Dtuner-types.h1 /* SPDX-License-Identifier: GPL-2.0 */
10 * enum param_type - type of the tuner pameters
13 * @TUNER_PARAM_TYPE_PAL: Tuner params are for PAL color TV standard
14 * @TUNER_PARAM_TYPE_SECAM: Tuner params are for SECAM color TV standard
15 * @TUNER_PARAM_TYPE_NTSC: Tuner params are for NTSC color TV standard
27 * struct tuner_range - define the frequencies supported by the tuner
54 * struct tuner_params - Parameters to be used to setup the tuner. Those
55 * are used by drivers/media/tuners/tuner-types.c in
57 * the parameters are for tuners based on tda9887 IF-PLL
58 * multi-standard analog TV/Radio demodulator, with is
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