| /Linux-v6.1/Documentation/hid/ |
| D | hidraw.rst | 2 HIDRAW - Raw Access to USB and Bluetooth Human Interface Devices
15 Hidraw is also useful for communicating with non-conformant HID devices
19 communication with these non-conformant devices is impossible using hiddev.
21 these non-conformant devices.
31 directly under /dev (eg: /dev/hidraw0). As this location is distribution-
32 and udev rule-dependent, applications should use libudev to locate hidraw
40 ---------------
43 -------
47 a report available to be read. read() can be made non-blocking, by passing
57 -------
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| /Linux-v6.1/Documentation/filesystems/ |
| D | sharedsubtree.rst | 1 .. SPDX-License-Identifier: GPL-2.0
11 4) Use-case
19 -----------
27 It provides the necessary building blocks for features like per-user-namespace
31 -----------
49 mount --make-shared /mnt
51 Note: mount(8) command now supports the --make-shared flag,
57 # mount --bind /mnt /tmp
60 and the contents of both the mounts remain identical.
94 # mount --make-shared /mnt
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| D | isofs.rst | 1 .. SPDX-License-Identifier: GPL-2.0
22 There is also an option of doing UTF-8 translations with the
24 utf8 Encode Unicode names in UTF-8 format. Default is no.
36 map=off Do not map non-Rock Ridge filenames to lower case
37 map=normal Map non-Rock Ridge filenames to lower case
59 - http://www.y-adagio.com/
60 - ftp://ftp.ecma.ch/ecma-st/Ecma-119.pdf
62 Quoting from the PDF "This 2nd Edition of Standard ECMA-119 is technically
63 identical with ISO 9660.", so it is a valid and gratis substitute of the
|
| /Linux-v6.1/Documentation/userspace-api/media/v4l/ |
| D | pixfmt-yuv-planar.rst | 1 .. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
3 .. planar-yuv:
12 - Semi-planar formats use two planes. The first plane is the luma plane and
16 - Fully planar formats use three planes to store the Y, Cb and Cr components
26 and applications that support the multi-planar API, described in
27 :ref:`planar-apis`. Unless explicitly documented as supporting non-contiguous
31 Semi-Planar YUV Formats
41 chroma lines is identical to the padding of the luma lines. Without horizontal
46 For non-contiguous formats, no constraints are enforced by the format on the
57 .. flat-table:: Overview of Semi-Planar YUV Formats
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| D | colorspaces-details.rst | 1 .. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
8 .. _col-smpte-170m:
20 .. flat-table:: SMPTE 170M Chromaticities
21 :header-rows: 1
22 :stub-columns: 0
25 * - Color
26 - x
27 - y
28 * - Red
29 - 0.630
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|
| D | vidioc-subdev-enum-frame-size.rst | 1 .. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
13 VIDIOC_SUBDEV_ENUM_FRAME_SIZE - Enumerate media bus frame sizes
35 a sub-device on the given pad for the given media bus format. Supported
47 Sub-devices that only support discrete frame sizes (such as most
48 sensors) will return one or more frame sizes with identical minimum and
52 supported. For instance, a scaler that uses a fixed-point scaling ratio
56 sub-device for an exact supported frame size.
59 pads of the sub-device, as well as on the current active links and the
68 .. flat-table:: struct v4l2_subdev_frame_size_enum
69 :header-rows: 0
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| /Linux-v6.1/tools/testing/selftests/drivers/net/mlxsw/ |
| D | fib_offload.sh | 2 # SPDX-License-Identifier: GPL-2.0
65 num=$(ip -6 route show match ${pfx} | grep "offload" | wc -l)
67 if [ $num -eq $expected_num ]; then
79 ip -6 route add 2001:db8:3::/64 dev $spine_p1 metric 100
83 # Append an identical prefix route with an higher metric and check that
85 ip -6 route append 2001:db8:3::/64 dev $spine_p1 metric 200
91 # Prepend an identical prefix route with lower metric and check that
93 ip -6 route append 2001:db8:3::/64 dev $spine_p1 metric 10
103 ip -6 route flush 2001:db8:3::/64 dev $spine_p1
104 ip -6 route add 2001:db8:3::/64 dev $spine_p2
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| /Linux-v6.1/drivers/platform/mellanox/ |
| D | mlxbf-bootctl.h | 1 /* SPDX-License-Identifier: GPL-2.0 */
10 * Request that the on-chip watchdog be enabled, or disabled, after
12 * status of the on-chip watchdog. If non-zero, the argument
14 * will not be enabled after the next soft reset. Non-zero errors are
20 * Query the status which has been requested for the on-chip watchdog
33 * values. Non-zero errors are returned as documented below.
47 * effect of this call is identical to that of invoking
55 * reset. Non-zero errors are returned as documented below.
|
| /Linux-v6.1/Documentation/i2c/busses/ |
| D | i2c-piix4.rst | 2 Kernel driver i2c-piix4
9 * ServerWorks OSB4, CSB5, CSB6, HT-1000 and HT-1100 southbridges
18 * AMD Hudson-2, ML, CZ
26 - Frodo Looijaard <frodol@dds.nl>
27 - Philip Edelbrock <phil@netroedge.com>
31 -----------------
40 -----------
45 SMBus - you can not access it on I2C levels. The good news is that it
47 timing problems. The bad news is that non-SMBus devices connected to it can
50 Do ``lspci -v`` and see whether it contains an entry like this::
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| /Linux-v6.1/tools/testing/selftests/bpf/prog_tests/ |
| D | btf_endian.c | 1 // SPDX-License-Identifier: GPL-2.0
17 enum btf_endianness swap_endian = 1 - endian; in test_btf_endian()
34 /* Get raw BTF data in non-native endianness... */ in test_btf_endian()
51 /* both raw data should be identical (with non-native endianness) */ in test_btf_endian()
56 ASSERT_EQ(bswap_16(hdr->magic), BTF_MAGIC, "btf_magic_swapped"); in test_btf_endian()
67 ASSERT_EQ(hdr->magic, BTF_MAGIC, "btf_magic_native"); in test_btf_endian()
82 /* and re-open swapped raw data again */ in test_btf_endian()
92 ASSERT_STREQ(btf__str_by_offset(swap_btf, t->name_off), "some_var", "var_name"); in test_btf_endian()
93 ASSERT_EQ(btf_var(t)->linkage, BTF_VAR_GLOBAL_ALLOCATED, "var_linkage"); in test_btf_endian()
94 ASSERT_EQ(t->type, 1, "var_type"); in test_btf_endian()
|
| /Linux-v6.1/tools/memory-model/Documentation/ |
| D | control-dependencies.txt | 12 Therefore, a load-load control dependency will not preserve ordering
32 (usually) guaranteed for load-store control dependencies, as in the
45 by a store, and this compiler-generated load would not be ordered by
49 "a" is always non-zero, it would be well within its rights to optimize
60 identical stores on both branches of the "if" statement as follows:
80 /* WRITE_ONCE(b, 1); -- moved up, BUG!!! */
83 /* WRITE_ONCE(b, 1); -- moved up, BUG!!! */
90 assembly code, after all of the compiler and link-time optimizations
103 Without explicit memory ordering, control-dependency-based ordering is
132 If MAX is compile-time defined to be 1, then the compiler knows that
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|
| /Linux-v6.1/drivers/tty/ |
| D | Kconfig | 1 # SPDX-License-Identifier: GPL-2.0
23 one can be used for a text-mode user session, and a third could run
25 is done with certain key combinations, usually Alt-<function key>.
42 shiny Linux system :-)
95 See <file:Documentation/driver-api/console.rst> for more
104 halves: a master and a slave. The slave device behaves identical to
110 Linux has traditionally used the BSD-like names /dev/ptyxx for
127 halves: a master and a slave. The slave device behaves identical to
133 Linux has traditionally used the BSD-like names /dev/ptyxx
149 When not in use, each legacy PTY occupies 12 bytes on 32-bit
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|
| /Linux-v6.1/tools/arch/x86/include/asm/ |
| D | cmpxchg.h | 1 /* SPDX-License-Identifier: GPL-2.0 */
8 * Non-existant functions to indicate usage errors at link time
9 * (or compile-time if the compiler implements __compiletime_error().
15 * Constants for operation sizes. On 32-bit, the 64-bit size it set to
16 * -1 because sizeof will never return -1, thereby making those switch
27 #define __X86_CASE_Q -1 /* sizeof will never return -1 */
31 * Atomic compare and exchange. Compare OLD with MEM, if identical,
|
| /Linux-v6.1/Documentation/powerpc/ |
| D | cpu_features.rst | 8 This document describes the system (including self-modifying code) used in the
10 compile-time selection.
23 C code may test 'cur_cpu_spec[smp_processor_id()]->cpu_features' for a
28 several paths that are performance-critical and would suffer if an array
30 performance penalty but still allow for runtime (rather than compile-time) CPU
32 based on CPU 0's capabilities, so a multi-processor system with non-identical
53 cur_cpu_spec[0]->cpu_features) or is cleared, respectively. These two macros
|
| /Linux-v6.1/Documentation/x86/x86_64/ |
| D | mm.rst | 1 .. SPDX-License-Identifier: GPL-2.0
7 Complete virtual memory map with 4-level page tables
12 - Negative addresses such as "-23 TB" are absolute addresses in bytes, counted down
13 from the top of the 64-bit address space. It's easier to understand the layout
14 when seen both in absolute addresses and in distance-from-top notation.
16 For example 0xffffe90000000000 == -23 TB, it's 23 TB lower than the top of the
17 64-bit address space (ffffffffffffffff).
22 - "16M TB" might look weird at first sight, but it's an easier way to visualize size
24 It also shows it nicely how incredibly large 64-bit address space is.
32 …0000000000000000 | 0 | 00007fffffffffff | 128 TB | user-space virtual memory, different …
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|
| /Linux-v6.1/arch/powerpc/platforms/powernv/ |
| D | pci.h | 1 /* SPDX-License-Identifier: GPL-2.0 */
36 * This is needed because of the behaviour of PCIe-to-PCI bridges. The PHB uses
39 * requests aren't tagged with the RID. To work around this the PCIe-to-PCI
42 * PCIe-to-X bridges have a similar issue even though PCI-X requests also have
43 * a RID in the transaction header. The PCIe-to-X bridge is permitted to "take
44 * ownership" of a transaction by a PCI-X device when forwarding it to the PCIe
79 /* "Base" iommu table, ie, 4K TCEs, 32-bit DMA */
82 /* 64-bit TCE bypass region */
89 * non-bridge device to the PE.
93 /* MSIs. MVE index is identical for 32 and 64 bit MSI
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| /Linux-v6.1/drivers/gpu/drm/vmwgfx/ |
| D | ttm_object.h | 3 * Copyright (c) 2006-2009 VMware, Inc., Palo Alto, CA., USA
20 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
28 * Authors: Thomas Hellstrom <thellstrom-at-vmware-dot-com>
32 * Base- and reference object implementation for the various
40 #include <linux/dma-buf.h>
51 * Device-specific types should use the
73 * @hash: hash entry for the per-device object hash.
89 * already been taken out of the per-device hash. The parameter
94 * This function may, for example, release a lock held by a user-space
98 * are visible to user-space. It provides a global name, race-safe
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|
| /Linux-v6.1/Documentation/process/ |
| D | license-rules.rst | 1 .. SPDX-License-Identifier: GPL-2.0
9 License version 2 only (GPL-2.0), as provided in LICENSES/preferred/GPL-2.0,
11 LICENSES/exceptions/Linux-syscall-note, as described in the COPYING file.
19 which is required to be compatible with the GPL-2.0::
21 GPL-1.0+ : GNU General Public License v1.0 or later
22 GPL-2.0+ : GNU General Public License v2.0 or later
23 LGPL-2.0 : GNU Library General Public License v2 only
24 LGPL-2.0+ : GNU Library General Public License v2 or later
25 LGPL-2.1 : GNU Lesser General Public License v2.1 only
26 LGPL-2.1+ : GNU Lesser General Public License v2.1 or later
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|
| /Linux-v6.1/arch/mips/include/asm/dec/ |
| D | kn03.h | 4 * differ mechanically but are otherwise identical (both are known as
33 * I/O ASIC interrupt bits. Star marks denote non-IRQ status bits.
|
| /Linux-v6.1/tools/testing/selftests/x86/ |
| D | entry_from_vm86.c | 1 // SPDX-License-Identifier: GPL-2.0-only
3 * entry_from_vm86.c - tests kernel entries from vm86 mode
4 * Copyright (c) 2014-2015 Andrew Lutomirski
6 * This exercises a few paths that need to special-case vm86 mode.
58 if (ctx->uc_mcontext.gregs[REG_EFL] & X86_EFLAGS_VM || in sighandler()
59 (ctx->uc_mcontext.gregs[REG_CS] & 3) != 3) { in sighandler()
73 (unsigned long)ctx->uc_mcontext.gregs[REG_EFL], in sighandler()
74 (unsigned short)ctx->uc_mcontext.gregs[REG_CS]); in sighandler()
122 ".size vmcode, . - vmcode\n\t"
141 v86->regs.eip = eip; in do_test()
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|
| /Linux-v6.1/Documentation/core-api/ |
| D | dma-api.rst | 8 of the API (and actual examples), see Documentation/core-api/dma-api-howto.rst.
11 Part II describes extensions for supporting non-consistent memory
13 non-consistent platforms (this is usually only legacy platforms) you
16 Part I - dma_API
17 ----------------
19 To get the dma_API, you must #include <linux/dma-mapping.h>. This
27 Part Ia - Using large DMA-coherent buffers
28 ------------------------------------------
76 Part Ib - Using small DMA-coherent buffers
77 ------------------------------------------
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|
| /Linux-v6.1/Documentation/admin-guide/mm/ |
| D | nommu-mmap.rst | 2 No-MMU memory mapping support
5 The kernel has limited support for memory mapping under no-MMU conditions, such
16 The behaviour is similar between the MMU and no-MMU cases, but not identical;
21 In the MMU case: VM regions backed by arbitrary pages; copy-on-write
24 In the no-MMU case: VM regions backed by arbitrary contiguous runs of
31 the no-MMU case doesn't support these, behaviour is identical to
39 In the no-MMU case:
41 - If one exists, the kernel will re-use an existing mapping to the
45 - If possible, the file mapping will be directly on the backing device
50 - If the backing device can't or won't permit direct sharing,
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|
| /Linux-v6.1/scripts/dtc/libfdt/ |
| D | libfdt.h | 1 /* SPDX-License-Identifier: (GPL-2.0-or-later OR BSD-2-Clause) */
5 * libfdt - Flat Device Tree manipulation
35 * offset which is out-of-bounds, or which points to an
44 * length, or the phandle value was either 0 or -1, which are
48 * tree created by the sequential-write functions, which is
53 /* FDT_ERR_TRUNCATED: FDT or a sub-block is improperly
58 * device tree at all - it is missing the flattened device
63 * read-write functions, this may mean that fdt_open_into() is
70 /* FDT_ERR_BADLAYOUT: For read-write functions, the given
71 * device tree has it's sub-blocks in an order that the
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|
| /Linux-v6.1/Documentation/riscv/ |
| D | vm-layout.rst | 1 .. SPDX-License-Identifier: GPL-2.0
4 Virtual Memory Layout on RISC-V Linux
10 This document describes the virtual memory layout used by the RISC-V Linux
13 RISC-V Linux Kernel 32bit
16 RISC-V Linux Kernel SV32
17 ------------------------
21 RISC-V Linux Kernel 64bit
24 The RISC-V privileged architecture document states that the 64bit addresses
25 "must have bits 63–48 all equal to bit 47, or else a page-fault exception will
28 the RISC-V Linux Kernel resides.
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|
| /Linux-v6.1/Documentation/networking/caif/ |
| D | caif.rst | 1 .. SPDX-License-Identifier: GPL-2.0
10 :Copyright: |copy| ST-Ericsson AB 2010
40 The use of Start-of-frame-extension (STX) must also be set as
59 /sys/kernel/debug/caif_serial/<tty-name>/
61 * ser_state: Prints the bit-mask status where
63 - 0x02 means SENDING, this is a transient state.
64 - 0x10 means FLOW_OFF_SENT, i.e. the previous frame has not been sent
68 * tty_status: Prints the bit-mask tty status information
70 - 0x01 - tty->warned is on.
71 - 0x04 - tty->packed is on.
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|
