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/linux-6.8/Documentation/devicetree/bindings/leds/backlight/
Dqcom-wled.yaml1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/leds/backlight/qcom-wled.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Bjorn Andersson <bjorn.andersson@linaro.org>
11 - Kiran Gunda <kgunda@codeaurora.org>
21 - qcom,pm8941-wled
22 - qcom,pmi8950-wled
23 - qcom,pmi8994-wled
24 - qcom,pmi8998-wled
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/linux-6.8/Documentation/sound/hd-audio/
Dnotes.rst2 More Notes on HD-Audio Driver
11 HD-audio is the new standard on-board audio component on modern PCs
12 after AC97. Although Linux has been supporting HD-audio since long
15 This document explains the brief trouble-shooting and debugging
16 methods for the HD-audio hardware.
18 The HD-audio component consists of two parts: the controller chip and
19 the codec chips on the HD-audio bus. Linux provides a single driver
20 for all controllers, snd-hda-intel. Although the driver name contains
21 a word of a well-known hardware vendor, it's not specific to it but for
22 all controller chips by other companies. Since the HD-audio
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/linux-6.8/kernel/module/
DKconfig1 # SPDX-License-Identifier: GPL-2.0-only
63 bool "Debug duplicate modules with auto-loading"
65 Module autoloading allows in-kernel code to request modules through
74 requests are non-fatal virtual memory is a limited resource and each
79 module requests to help identify if module auto-loading may be the
92 non-wait request_module() call is synchronous and waits until modprobe
93 completes. Subsequent auto-loading requests for the same module do
101 abuse was due to module auto-loading. These issues are currently only
104 module auto-loading is not the culprit. There may very well still be
105 many duplicate module auto-loading requests which could be optimized
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/linux-6.8/include/uapi/linux/
Dethtool.h1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
26 * have the same layout for 32-bit and 64-bit userland.
38 * struct ethtool_cmd - DEPRECATED, link control and status
43 * interface supports autonegotiation or auto-detection.
44 * Read-only.
48 * auto-detection.
56 * @autoneg: Enable/disable autonegotiation and auto-detection;
60 * Read-only.
62 * obsoleted by &struct ethtool_coalesce. Read-only; deprecated.
64 * obsoleted by &struct ethtool_coalesce. Read-only; deprecated.
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/linux-6.8/drivers/video/backlight/
Dqcom-wled.c1 // SPDX-License-Identifier: GPL-2.0-only
61 /* WLED3 specific per-'string' registers below */
93 /* WLED4 specific per-'string' registers below */
140 /* WLED5 specific per-'string' registers below */
225 * Determines if the auto string detection is required.
238 for (i = 0; i < wled->cfg.num_strings; ++i) { in wled3_set_brightness()
239 rc = regmap_bulk_write(wled->regmap, wled->ctrl_addr + in wled3_set_brightness()
240 WLED3_SINK_REG_BRIGHT(wled->cfg.enabled_strings[i]), in wled3_set_brightness()
252 u16 low_limit = wled->max_brightness * 4 / 1000; in wled4_set_brightness()
261 for (i = 0; i < wled->cfg.num_strings; ++i) { in wled4_set_brightness()
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/linux-6.8/Documentation/devicetree/bindings/media/i2c/
Dsony,imx296.yaml1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Sony IMX296 1/2.8-Inch CMOS Image Sensor
10 - Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
11 - Laurent Pinchart <laurent.pinchart@ideasonboard.com>
13 description: |-
14 The Sony IMX296 is a 1/2.9-Inch active pixel type CMOS Solid-state image
16 features a global shutter with variable charge-integration time. It is
17 programmable through I2C and 4-wire interfaces. The sensor output is
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/linux-6.8/Documentation/admin-guide/
Dparport.rst4 The ``parport`` code provides parallel-port support under Linux. This
9 detection of your hardware. This is particularly useful if you want
16 port-sharing) and architecture-dependent (which deals with actually
28 architecture-dependent code with (for example)::
30 # insmod parport_pc io=0x3bc,0x378,0x278 irq=none,7,auto
32 to tell the ``parport`` code that you want three PC-style ports, one at
34 auto-detected IRQ. Currently, PC-style (``parport_pc``), Sun ``bpp``,
43 --------
49 options parport_pc io=0x378,0x278 irq=7,auto
51 modprobe will load ``parport_pc`` (with the options ``io=0x378,0x278 irq=7,auto``)
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Dkernel-parameters.txt16 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
37 If set to vendor, prefer vendor-specific driver
69 Documentation/firmware-guide/acpi/debug.rst for more information about
127 Format: <byte> or <bitmap-list>
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/linux-6.8/Documentation/sound/
Dalsa-configuration.rst2 Advanced Linux Sound Architecture - Driver Configuration guide
22 too. "Debug detection" will add checks for the detection of cards.
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
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/linux-6.8/Documentation/devicetree/bindings/sound/
Dda7218.txt8 - compatible : Should be "dlg,da7217" or "dlg,da7218"
9 - reg: Specifies the I2C slave address
11 - VDD-supply: VDD power supply for the device
12 - VDDMIC-supply: VDDMIC power supply for the device
13 - VDDIO-supply: VDDIO power supply for the device
18 - interrupts: IRQ line info for DA7218 chip.
19 (See Documentation/devicetree/bindings/interrupt-controller/interrupts.txt for
21 - interrupt-names : Name associated with interrupt line. Should be "wakeup" if
23 - wakeup-source: Flag to indicate this device can wake system (suspend/resume).
25 - clocks : phandle and clock specifier for codec MCLK.
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/linux-6.8/drivers/tty/serial/
Dsuncore.c1 // SPDX-License-Identifier: GPL-2.0
18 #include <linux/string.h>
32 drv->minor = sunserial_current_minor; in sunserial_register_minors()
33 drv->nr += count; in sunserial_register_minors()
35 if (drv->nr == count) in sunserial_register_minors()
39 drv->tty_driver->name_base = drv->minor - 64; in sunserial_register_minors()
47 drv->nr -= count; in sunserial_unregister_minors()
48 sunserial_current_minor -= count; in sunserial_unregister_minors()
50 if (drv->nr == 0) in sunserial_unregister_minors()
61 drv->cons = con; in sunserial_console_match()
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/linux-6.8/drivers/media/v4l2-core/
Dv4l2-ctrls-defs.c1 // SPDX-License-Identifier: GPL-2.0-or-later
5 * Copyright (C) 2010-2021 Hans Verkuil <hverkuil-cisco@xs4all.nl>
9 #include <media/v4l2-ctrls.h>
14 * An empty string signifies a menu entry that is invalid. This allows
26 "MPEG-1/2 Layer I", in v4l2_ctrl_get_menu()
27 "MPEG-1/2 Layer II", in v4l2_ctrl_get_menu()
28 "MPEG-1/2 Layer III", in v4l2_ctrl_get_menu()
29 "MPEG-2/4 AAC", in v4l2_ctrl_get_menu()
30 "AC-3", in v4l2_ctrl_get_menu()
128 "16-bit CRC", in v4l2_ctrl_get_menu()
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/linux-6.8/Documentation/driver-api/
Dipmi.rst12 standardized database for field-replaceable units (FRUs) and a watchdog
25 -------------
32 No matter what, you must pick 'IPMI top-level message handler' to use
35 The message handler does not provide any user-level interfaces.
50 these enabled and let the drivers auto-detect what is present.
61 "The SMBus Driver" on how to hand-configure your system.
65 the kernel, then via a kernel command-line option you can have the
74 'IPMI Poweroff' to do this. The driver will auto-detect if the system
82 you want the whole panic string put into the event log using OEM
83 events, enable the 'Generate OEM events containing the panic string'
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/linux-6.8/Documentation/userspace-api/media/v4l/
Dvidioc-enuminput.rst1 .. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
13 VIDIOC_ENUMINPUT - Enumerate video inputs
45 .. flat-table:: struct v4l2_input
46 :header-rows: 0
47 :stub-columns: 0
50 * - __u32
51 - ``index``
52 - Identifies the input, set by the application.
53 * - __u8
54 - ``name``\ [32]
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Dvidioc-queryctrl.rst1 .. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
13 VIDIOC_QUERYCTRL - VIDIOC_QUERY_EXT_CTRL - VIDIOC_QUERYMENU - Enumerate controls and menu control i…
42 of a struct :ref:`v4l2_queryctrl <v4l2-queryctrl>` and call the
60 driver returns the next supported non-compound control, or ``EINVAL`` if
72 :ref:`v4l2_queryctrl <v4l2-queryctrl>` since that structure is full.
80 fields of struct :ref:`v4l2_querymenu <v4l2-querymenu>` and call the
85 :ref:`v4l2_queryctrl <v4l2-queryctrl>` ``minimum`` to ``maximum``,
99 .. _v4l2-queryctrl:
103 .. flat-table:: struct v4l2_queryctrl
104 :header-rows: 0
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/linux-6.8/Documentation/ABI/testing/
Dsysfs-class-hwmon4 This should be a short, lowercase string, not containing
16 The contents of the label are free-form.
132 Text string
135 this voltage channel is being used for, and user-space
137 user-space.
145 When disabled the sensor read will return -ENODATA.
147 - 1: Enable
148 - 0: Disable
253 Only makes sense if the chip supports closed-loop fan speed
260 Text string
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/linux-6.8/tools/lib/bpf/
Dlibbpf.h1 /* SPDX-License-Identifier: (LGPL-2.1 OR BSD-2-Clause) */
6 * Copyright (C) 2013-2015 Alexei Starovoitov <ast@kernel.org>
58 * @return Pointer to a static string identifying the attach type. NULL is
67 * @return Pointer to a static string identifying the link type. NULL is
76 * @return Pointer to a static string identifying the map type. NULL is
85 * @return Pointer to a static string identifying the program type. NULL is
100 * @brief **libbpf_set_print()** sets user-provided log callback function to
105 * This function is thread-safe.
116 * - for object open from file, this will override setting object
118 * - for object open from memory buffer, this will specify an object
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/linux-6.8/drivers/net/ethernet/broadcom/bnx2x/
Dbnx2x_link.h1 /* Copyright 2008-2013 Broadcom Corporation
8 * at http://www.gnu.org/licenses/gpl-2.0.html (the "GPL").
83 #define SINGLE_MEDIA_DIRECT(params) (params->num_phys == 1)
85 #define SINGLE_MEDIA(params) (params->num_phys == 2)
87 #define DUAL_MEDIA(params) (params->num_phys == 3)
119 #define LINK_CONFIG_SIZE (MAX_PHYS - 1)
121 0 : (_phy_idx - 1))
157 /* No Over-Current detection */
159 /* Fan failure detection required */
296 * operation, according to bits 29:28 -
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/linux-6.8/drivers/media/pci/tw5864/
Dtw5864-reg.h1 /* SPDX-License-Identifier: GPL-2.0-or-later */
3 * TW5864 driver - registers description
8 /* According to TW5864_datasheet_0.6d.pdf, tw5864b1-ds.pdf */
10 /* Register Description - Direct Map Space */
11 /* 0x0000 ~ 0x1ffc - H264 Register Map */
76 * 0->3 4 VLC data buffer in DDR (1M each)
77 * 0->7 8 VLC data buffer in DDR (512k each)
147 /* DDR-DPR Burst Read Enable */
157 * 0 Single R/W Access (Host <-> DDR)
158 * 1 Burst R/W Access (Host <-> DPR)
[all …]
/linux-6.8/drivers/media/dvb-frontends/drx39xyj/
Ddrx_driver.h2 Copyright (c), 2004-2005,2007-2010 Trident Microsystems, Inc.
60 /*------------------------------------------------------------------------------
62 ------------------------------------------------------------------------------*/
69 * \retval -EIO Initialization failed.
78 * \retval -EIO Termination failed.
98 * \retval -EIO Failure.
99 * \retval -EINVAL Parameter 'wcount' is not zero but parameter
133 #define TUNER_MODE_SUB0 0x0001 /* for sub-mode (e.g. RF-AGC setting) */
134 #define TUNER_MODE_SUB1 0x0002 /* for sub-mode (e.g. RF-AGC setting) */
135 #define TUNER_MODE_SUB2 0x0004 /* for sub-mode (e.g. RF-AGC setting) */
[all …]
/linux-6.8/Documentation/scsi/
Dst.rst1 .. SPDX-License-Identifier: GPL-2.0
23 flexible method and applicable to single-user workstations. However,
32 drive performs auto-detection of the tape format well (like some
33 QIC-drives). The result is that any tape can be read, writing can be
37 does not perform auto-detection well enough and there is a single
40 or not :-).
57 between formats in multi-tape operations (the explicitly overridden
72 limits). Both the auto-rewind (minor equals device number) and
73 non-rewind devices (minor is 128 + device number) are implemented.
128 dev_upper non-rew mode dev-lower
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/linux-6.8/drivers/net/arcnet/
Darcdevice.h1 /* SPDX-License-Identifier: GPL-2.0-or-later */
37 * necessary transmits - don't set this too high.
53 #define D_EXTRA 2 /* useful, but non-vital information */
57 #define D_PROTO 64 /* debug auto-protocol support */
107 name, bytes, _y - _x, \
108 100000000 / 1024 * bytes / (_y - _x + 1)); \
115 * Time needed to reset the card - in ms (milliseconds). This works on my
127 * In non-RFC1201 protocols, we have to just tack some extra bytes on the
140 #define RESETflag 0x10 /* power-on-reset */
141 #define RES1flag 0x20 /* reserved - usually set by jumper */
[all …]
/linux-6.8/drivers/net/ethernet/intel/igb/
De1000_defines.h1 /* SPDX-License-Identifier: GPL-2.0 */
2 /* Copyright(c) 2007 - 2018 Intel Corporation. */
62 /* Interrupt acknowledge Auto-mask */
64 /* packet buffer parity error detection enabled */
65 /* descriptor FIFO parity error detection enable */
118 #define E1000_MANC_SMBUS_EN 0x00000001 /* SMBus Enabled - RO */
119 #define E1000_MANC_ASF_EN 0x00000002 /* ASF Enabled - RO */
184 #define E1000_CTRL_ASDE 0x00000020 /* Auto-speed detect enable */
186 #define E1000_CTRL_ILOS 0x00000080 /* Invert Loss-Of Signal */
254 /* Constants used to intrepret the masked PCI-X bus speed. */
[all …]
/linux-6.8/Documentation/hwmon/
Dsysfs-interface.rst5 through the sysfs interface. Since lm-sensors 3.0.0, libsensors is
6 completely chip-independent. It assumes that all the kernel drivers
10 This is a major improvement compared to lm-sensors 2.
22 For this reason, even if we aim at a chip-independent libsensors, it will
37 Up to lm-sensors 3.0.0, libsensors looks for hardware monitoring attributes
38 in the "physical" device directory. Since lm-sensors 3.0.1, attributes found
61 to cause an alarm) is chip-dependent.
63 When setting values of hwmon sysfs attributes, the string representation of
69 ----------------
76 -------------------------------------------------------------------------
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/linux-6.8/drivers/net/phy/
Dsmsc.c1 // SPDX-License-Identifier: GPL-2.0+
27 /* Vendor-specific PHY Definitions */
43 const char *string; member
70 if (phydev->interrupts == PHY_INTERRUPT_ENABLED) { in smsc_phy_config_intr()
91 struct smsc_phy_priv *priv = phydev->priv; in smsc_phy_config_edpd()
93 if (priv->edpd_enable) in smsc_phy_config_edpd()
107 if (irq_status != -ENODEV) in smsc_phy_handle_interrupt()
124 struct smsc_phy_priv *priv = phydev->priv; in smsc_phy_config_init()
130 if (!priv->edpd_mode_set_by_user && phydev->irq != PHY_POLL) in smsc_phy_config_init()
131 priv->edpd_enable = false; in smsc_phy_config_init()
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