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/Linux-v6.6/drivers/interconnect/imx/
Dimx.h1 /* SPDX-License-Identifier: GPL-2.0 */
6 * Copyright (c) 2019-2020, NXP
13 #include <linux/interconnect-provider.h>
20 * Read Priority in Fixed/Limiter mode
25 * Write Priority in Fixed/Limiter mode
50 * struct imx_icc_node_adj - Describe a dynamic adjustable node
59 * struct imx_icc_node - Describe an interconnect node
62 * @links: an array of slaves' node id
63 * @num_links: number of id defined in links
68 u16 links[IMX_ICC_MAX_LINKS]; member
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/Linux-v6.6/Documentation/filesystems/
Daffs.rst1 .. SPDX-License-Identifier: GPL-2.0
18 a bug has been fixed so that accented ("international") letters
19 in file names are case-insensitive, as they ought to be.
95 symbolic links on an AFFS partition. Default = "/".
99 When symbolic links with an absolute path are created
107 Amiga -> Linux:
111 - R maps to r for user, group and others. On directories, R implies x.
113 - W maps to w.
115 - E maps to x.
117 - D is ignored.
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Dqnx6.rst1 .. SPDX-License-Identifier: GPL-2.0
29 ------
31 The space in the device or file is split up into blocks. These are a fixed
39 ---------------
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 -------------
127 Symbolic links are also filesystem objects with inodes. They got a specific
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Docfs2-online-filecheck.rst1 .. SPDX-License-Identifier: GPL-2.0
4 OCFS2 file system - online file check
11 OCFS2 is often used in high-availability systems. However, OCFS2 usually
12 converts the filesystem to read-only when encounters an error. This may not be
13 necessary, since turning the filesystem read-only would affect other running
16 -EIO errno to the calling process and terminate further processing so that the
18 read-only, and the problematic file's inode number is reported in the kernel
23 This effort is to check/fix small issues which may hinder day-to-day operations
24 of a cluster filesystem by turning the filesystem read-only. The scope of
28 In case of directory to file links is incorrect, the directory inode is
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/Linux-v6.6/fs/affs/
DChanges7 -----------
9 - Doesn't work on the alpha. The only 64/32-bit
14 Alas, I've got no alpha to debug. :-(
16 - The partition checker (drivers/block/genhd.c)
20 - The feature to automatically make the fs clean
24 - When a file is truncated to a size that is not
29 Please direct bug reports to: zippel@linux-m68k.org
32 ------------
33 - kill kernel lock
34 - fix for a possible bitmap corruption
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/Linux-v6.6/Documentation/sound/soc/
Ddpcm.rst18 DPCM re-uses all the existing component codec, platform and DAI drivers without
23 -------------------------------------
26 document for all examples :-
32 PCM0 <------------> * * <----DAI0-----> Codec Headset
34 PCM1 <------------> * * <----DAI1-----> Codec Speakers
36 PCM2 <------------> * * <----DAI2-----> MODEM
38 PCM3 <------------> * * <----DAI3-----> BT
40 * * <----DAI4-----> DMIC
42 * * <----DAI5-----> FM
53 Example - DPCM Switching playback from DAI0 to DAI1
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/Linux-v6.6/Documentation/networking/dsa/
Dsja1105.rst8 The NXP SJA1105 is a family of 10 SPI-managed automotive switches:
10 - SJA1105E: First generation, no TTEthernet
11 - SJA1105T: First generation, TTEthernet
12 - SJA1105P: Second generation, no TTEthernet, no SGMII
13 - SJA1105Q: Second generation, TTEthernet, no SGMII
14 - SJA1105R: Second generation, no TTEthernet, SGMII
15 - SJA1105S: Second generation, TTEthernet, SGMII
16 - SJA1110A: Third generation, TTEthernet, SGMII, integrated 100base-T1 and
17 100base-TX PHYs
18 - SJA1110B: Third generation, TTEthernet, SGMII, 100base-T1, 100base-TX
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/Linux-v6.6/Documentation/admin-guide/
Dsysfs-rules.rst4 The kernel-exported sysfs exports internal kernel implementation details
11 low-level userspace applications, with a new kernel release, the users
12 of sysfs must follow some rules to use an as-abstract-as-possible way to
21 - Do not use libsysfs
23 offer any abstraction, it exposes all the kernel driver-core
31 - sysfs is always at ``/sys``
38 - devices are only "devices"
39 There is no such thing like class-, bus-, physical devices,
41 just simply a "device". Class-, bus-, physical, ... types are just
47 - devpath (``/devices/pci0000:00/0000:00:1d.1/usb2/2-2/2-2:1.0``)
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/Linux-v6.6/Documentation/networking/
Dsfp-phylink.rst1 .. SPDX-License-Identifier: GPL-2.0
10 phylink is a mechanism to support hot-pluggable networking modules
11 directly connected to a MAC without needing to re-initialise the
12 adapter on hot-plug events.
14 phylink supports conventional phylib-based setups, fixed link setups
30 2. Fixed mode
32 Fixed mode is the same as PHY mode as far as the MAC driver is
35 3. In-band mode
37 In-band mode is used with 802.3z, SGMII and similar interface modes,
38 and we are expecting to use and honor the in-band negotiation or
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Dkapi.rst9 ---------------------
11 .. kernel-doc:: include/linux/net.h
15 -----------------------
17 .. kernel-doc:: include/linux/skbuff.h
20 .. kernel-doc:: include/net/sock.h
23 .. kernel-doc:: net/socket.c
26 .. kernel-doc:: net/core/skbuff.c
29 .. kernel-doc:: net/core/sock.c
32 .. kernel-doc:: net/core/datagram.c
35 .. kernel-doc:: net/core/stream.c
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Dxdp-rx-metadata.rst20 .. kernel-doc:: net/core/xdp.c
27 metadata available in which case the driver returns ``-ENODATA``.
30 implemented, the default ones that return ``-EOPNOTSUPP`` will be used
37 +----------+-----------------+------+
39 +----------+-----------------+------+
42 xdp_buff->data_meta xdp_buff->data
52 :doc:`af_xdp` use-case implies that there is a contract between the BPF
54 the final consumer. Thus the BPF program manually allocates a fixed number of
57 ``xsk_umem__get_data() - METADATA_SIZE`` to locate that metadata.
59 ``METADATA_SIZE`` is an application-specific constant (``AF_XDP`` receive
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/Linux-v6.6/drivers/net/phy/
DKconfig1 # SPDX-License-Identifier: GPL-2.0-only
12 PHYlink models the link between the PHY and MAC, allowing fixed
13 configuration links, PHYs, and Serdes links with MAC level
35 Adds support for a set of LED trigger events per-PHY. Link
39 logical-or of all the link speed ones.
55 tristate "MDIO Bus/PHY emulation with fixed speed/link PHYs"
58 Adds the platform "fixed" MDIO Bus to cover the boards that use
61 Currently tested with mpc866ads and mpc8349e-mitx.
88 - ADIN1200 - Robust,Industrial, Low Power 10/100 Ethernet PHY
89 - ADIN1300 - Robust,Industrial, Low Latency 10/100/1000 Gigabit
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/Linux-v6.6/drivers/net/wireless/ti/wlcore/
Dwlcore_i.h1 /* SPDX-License-Identifier: GPL-2.0-only */
5 * Copyright (C) 1998-2009 Texas Instruments. All rights reserved.
6 * Copyright (C) 2008-2009 Nokia Corporation
53 * max number of links allowed by all HWs.
54 * this is NOT the actual max links supported by the current hw.
68 * When in AP-mode, we allow (at least) this number of packets
69 * to be transmitted to FW for a STA in PS-mode. Only when packets are
135 /* Cumulative counter of total released mem blocks since FW-reset */
150 * (length of the array is wl->num_links)
185 size_t len, bool fixed);
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/Linux-v6.6/net/wireless/
Dwext-sme.c1 // SPDX-License-Identifier: GPL-2.0
6 * Copyright (C) 2009, 2020-2023 Intel Corporation
14 #include <net/cfg80211-wext.h>
15 #include "wext-compat.h"
28 if (!netif_running(wdev->netdev)) in cfg80211_mgd_wext_connect()
31 wdev->wext.connect.ie = wdev->wext.ie; in cfg80211_mgd_wext_connect()
32 wdev->wext.connect.ie_len = wdev->wext.ie_len; in cfg80211_mgd_wext_connect()
35 wdev->wext.connect.bg_scan_period = -1; in cfg80211_mgd_wext_connect()
37 if (wdev->wext.keys) { in cfg80211_mgd_wext_connect()
38 wdev->wext.keys->def = wdev->wext.default_key; in cfg80211_mgd_wext_connect()
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Dwext-compat.c1 // SPDX-License-Identifier: GPL-2.0
3 * cfg80211 - wext compat code
9 * Copyright 2008-2009 Johannes Berg <johannes@sipsolutions.net>
10 * Copyright (C) 2019-2022 Intel Corporation
21 #include <net/cfg80211-wext.h>
22 #include "wext-compat.h"
24 #include "rdev-ops.h"
30 strcpy(wrqu->name, "IEEE 802.11"); in cfg80211_wext_giwname()
38 __u32 *mode = &wrqu->mode; in cfg80211_wext_siwmode()
39 struct wireless_dev *wdev = dev->ieee80211_ptr; in cfg80211_wext_siwmode()
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/Linux-v6.6/Documentation/filesystems/ext4/
Dinodes.rst1 .. SPDX-License-Identifier: GPL-2.0
4 -----------
15 links and is in general more seek-happy than ext4 due to its simpler
22 ``(inode_number - 1) / sb.s_inodes_per_group``, and the offset into the
23 group's table is ``(inode_number - 1) % sb.s_inodes_per_group``. There
31 .. list-table::
33 :header-rows: 1
36 * - Offset
37 - Size
38 - Name
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/Linux-v6.6/Documentation/devicetree/bindings/net/
Dethernet-controller.yaml1 # SPDX-License-Identifier: GPL-2.0
3 ---
4 $id: http://devicetree.org/schemas/net/ethernet-controller.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - David S. Miller <davem@davemloft.net>
20 local-mac-address:
23 $ref: /schemas/types.yaml#/definitions/uint8-array
27 mac-address:
32 local-mac-address property.
33 $ref: /schemas/types.yaml#/definitions/uint8-array
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/Linux-v6.6/Documentation/devicetree/bindings/sound/
Dsimple-card.yaml1 # SPDX-License-Identifier: GPL-2.0
3 ---
4 $id: http://devicetree.org/schemas/sound/simple-card.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
14 frame-master:
15 description: Indicates dai-link frame master.
18 bitclock-master:
19 description: Indicates dai-link bit clock master
22 frame-inversion:
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/Linux-v6.6/drivers/base/
Dcore.c1 // SPDX-License-Identifier: GPL-2.0
3 * drivers/base/core.c - core driver model code (device registration, etc)
5 * Copyright (c) 2002-3 Patrick Mochel
6 * Copyright (c) 2002-3 Open Source Development Labs
7 * Copyright (c) 2006 Greg Kroah-Hartman <gregkh@suse.de>
33 #include <linux/dma-map-ops.h> /* for dma_default_coherent */
39 /* Device links support. */
49 * __fwnode_link_add - Create a link between two fwnode_handles.
62 * Attempts to create duplicate links between the same pair of fwnode handles
70 list_for_each_entry(link, &sup->consumers, s_hook) in __fwnode_link_add()
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/Linux-v6.6/drivers/media/platform/renesas/vsp1/
Dvsp1_entity.c1 // SPDX-License-Identifier: GPL-2.0+
3 * vsp1_entity.c -- R-Car VSP1 Base Entity
5 * Copyright (C) 2013-2014 Renesas Electronics Corporation
13 #include <media/media-entity.h>
14 #include <media/v4l2-ctrls.h>
15 #include <media/v4l2-subdev.h>
30 if (entity->type == VSP1_ENTITY_HGO) { in vsp1_entity_route_setup()
37 source = entity->sources[0]; in vsp1_entity_route_setup()
38 smppt = (pipe->output->entity.index << VI6_DPR_SMPPT_TGW_SHIFT) in vsp1_entity_route_setup()
39 | (source->route->output << VI6_DPR_SMPPT_PT_SHIFT); in vsp1_entity_route_setup()
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/Linux-v6.6/Documentation/devicetree/bindings/
Dwriting-schema.rst1 .. SPDX-License-Identifier: GPL-2.0
3 Writing Devicetree Bindings in json-schema
6 Devicetree bindings are written using json-schema vocabulary. Schema files are
7 written in a JSON-compatible subset of YAML. YAML is used instead of JSON as it
11 Also see :ref:`example-schema`.
14 ---------------
16 Each schema doc is a structured json-schema which is defined by a set of
17 top-level properties. Generally, there is one binding defined per file. The
18 top-level json-schema properties used are:
21 A json-schema unique identifier string. The string must be a valid
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/Linux-v6.6/Documentation/userspace-api/media/v4l/
Dvidioc-subdev-enum-frame-size.rst1 .. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
13 VIDIOC_SUBDEV_ENUM_FRAME_SIZE - Enumerate media bus frame sizes
35 supported by a sub-device on the specified pad
59 Sub-devices that only support discrete frame sizes (such as most
64 supported. For instance, a scaler that uses a fixed-point scaling ratio
68 sub-device for an exact supported frame size.
71 pads of the sub-device, as well as on the current active links and the
80 .. flat-table:: struct v4l2_subdev_frame_size_enum
81 :header-rows: 0
82 :stub-columns: 0
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/Linux-v6.6/fs/jffs2/
DKconfig1 # SPDX-License-Identifier: GPL-2.0-only
9 levelling, compression and support for hard links. You cannot use
25 is unlikely to be useful - it enables extra debugging in certain
27 located and fixed, the detailed messages were relegated to level 2.
33 bool "JFFS2 write-buffering support"
37 This enables the write-buffering support in JFFS2.
41 - NAND flash
42 - NOR flash with transparent ECC
43 - DataFlash
46 bool "Verify JFFS2 write-buffer reads"
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/Linux-v6.6/Documentation/admin-guide/media/
Dimx.rst1 .. SPDX-License-Identifier: GPL-2.0
7 ------------
15 - Image DMA Controller (IDMAC)
16 - Camera Serial Interface (CSI)
17 - Image Converter (IC)
18 - Sensor Multi-FIFO Controller (SMFC)
19 - Image Rotator (IRT)
20 - Video De-Interlacing or Combining Block (VDIC)
26 re-ordering (for example UYVY to YUYV) within the same colorspace, and
27 packed <--> planar conversion. The IDMAC can also perform a simple
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/Linux-v6.6/drivers/usb/gadget/function/
Du_ether.h1 /* SPDX-License-Identifier: GPL-2.0+ */
3 * u_ether.h -- interface to USB gadget "ethernet link" utilities
5 * Copyright (C) 2003-2005,2008 David Brownell
6 * Copyright (C) 2003-2004 Robert Schwebel, Benedikt Spranger
49 * layer facilities can be used to package multiple logical links on this
68 /* NCM requires fixed size bundles */
96 /* gether_setup - initialize one ethernet-over-usb link
97 * @g: gadget to associated with these links
122 * gether_register_netdev - register the net device
125 * Registers the net device associated with this ethernet-over-usb link
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