| /kernel/linux/linux-6.6/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 -------
[all …]
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| /kernel/linux/linux-5.10/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
[all …]
|
| 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
|
| /kernel/linux/linux-6.6/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
[all …]
|
| 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
|
| /kernel/linux/linux-6.6/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
[all …]
|
| 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
[all …]
|
| D | dev-subdev.rst | 1 .. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
6 Sub-device Interface
13 components as software blocks called sub-devices.
15 V4L2 sub-devices are usually kernel-only objects. If the V4L2 driver
17 media entities. Applications will be able to enumerate the sub-devices
21 In addition to make sub-devices discoverable, drivers can also choose to
23 sub-device driver and the V4L2 device driver support this, sub-devices
26 - query, read and write sub-devices controls
28 - subscribe and unsubscribe to events and retrieve them
30 - negotiate image formats on individual pads
[all …]
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| /kernel/linux/linux-6.6/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 $spine_p2
[all …]
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| /kernel/linux/linux-5.10/tools/testing/selftests/drivers/net/mlxsw/ |
| D | fib_offload.sh | 2 # SPDX-License-Identifier: GPL-2.0
65 num=$(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
[all …]
|
| /kernel/linux/linux-5.10/Documentation/userspace-api/media/v4l/ |
| D | colorspaces-details.rst | 1 .. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
8 .. _col-smpte-170m:
24 .. flat-table:: SMPTE 170M Chromaticities
25 :header-rows: 1
26 :stub-columns: 0
29 * - Color
30 - x
31 - y
32 * - Red
33 - 0.630
[all …]
|
| /kernel/linux/linux-5.10/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.
|
| /kernel/linux/linux-5.10/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::
[all …]
|
| /kernel/linux/linux-6.6/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::
[all …]
|
| /kernel/linux/linux-6.6/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.
|
| /kernel/linux/linux-5.10/tools/testing/selftests/bpf/prog_tests/ |
| D | btf_endian.c | 1 // SPDX-License-Identifier: GPL-2.0
19 enum btf_endianness swap_endian = 1 - endian; in test_btf_endian()
36 /* Get raw BTF data in non-native endianness... */ in test_btf_endian()
53 /* both raw data should be identical (with non-native endianness) */ in test_btf_endian()
58 ASSERT_EQ(bswap_16(hdr->magic), BTF_MAGIC, "btf_magic_swapped"); in test_btf_endian()
69 ASSERT_EQ(hdr->magic, BTF_MAGIC, "btf_magic_native"); in test_btf_endian()
84 /* and re-open swapped raw data again */ in test_btf_endian()
94 ASSERT_STREQ(btf__str_by_offset(swap_btf, t->name_off), "some_var", "var_name"); in test_btf_endian()
95 ASSERT_EQ(btf_var(t)->linkage, BTF_VAR_GLOBAL_ALLOCATED, "var_linkage"); in test_btf_endian()
96 ASSERT_EQ(t->type, 1, "var_type"); in test_btf_endian()
|
| /kernel/linux/linux-6.6/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()
|
| /kernel/linux/linux-6.6/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.
[all …]
|
| /kernel/linux/linux-6.6/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
[all …]
|
| /kernel/linux/linux-6.6/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,
|
| /kernel/linux/linux-5.10/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,
|
| /kernel/linux/linux-6.6/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
|
| /kernel/linux/linux-5.10/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
|
| /kernel/linux/linux-6.6/Documentation/arch/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 …
[all …]
|
| /kernel/linux/linux-5.10/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 …
[all …]
|