| /linux/Documentation/driver-api/media/ |
| H A D | v4l2-subdev.rst | 1 .. SPDX-License-Identifier: GPL-2.0
3 V4L2 sub-devices
4 ----------------
6 Many drivers need to communicate with sub-devices. These devices can do all
8 encoding or decoding. For webcams common sub-devices are sensors and camera
12 driver with a consistent interface to these sub-devices the
13 :c:type:`v4l2_subdev` struct (v4l2-subdev.h) was created.
15 Each sub-device driver must have a :c:type:`v4l2_subdev` struct. This struct
16 can be stand-alone for simple sub-devices or it might be embedded in a larger
18 low-level device struct (e.g. ``i2c_client``) that contains the device data as
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| /linux/include/media/ |
| H A D | v4l2-async.h | 1 /* SPDX-License-Identifier: GPL-2.0-only */
5 * Copyright (C) 2012-2013, Guennadi Liakhovetski <g.liakhovetski@gmx.de>
22 * enum v4l2_async_match_type - type of asynchronous subdevice logic to be used
37 * struct v4l2_async_match_desc - async connection match information
65 * struct v4l2_async_connection - sub-device connection descriptor, as known to
68 * @match: struct of match type and per-bus type matching data sets
73 * @sd: the related sub-device
88 * struct v4l2_async_notifier_operations - Asynchronous V4L2 notifier operations
89 * @bound: a sub-device has been bound by the given connection
107 * struct v4l2_async_notifier - v4l2_device notifier data
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| H A D | v4l2-flash-led-class.h | 1 /* SPDX-License-Identifier: GPL-2.0-only */
3 * V4L2 flash LED sub-device registration helpers.
12 #include <media/v4l2-ctrls.h>
13 #include <media/v4l2-subdev.h>
21 * struct v4l2_flash_ctrl_data - flash control initialization data, filled
34 * struct v4l2_flash_ops - V4L2 flash operations
53 * struct v4l2_flash_config - V4L2 Flash sub-device initialization data
56 * @intensity: non-flash strobe constraints for the LED
60 * <linux/led-class-flash.h>
71 * struct v4l2_flash - Flash sub-device context
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| H A D | v4l2-event.h | 1 /* SPDX-License-Identifier: GPL-2.0-only */
3 * v4l2-event.h
7 * Copyright (C) 2009--2010 Nokia Corporation.
25 * struct v4l2_kevent - Internal kernel event struct.
26 * @list: List node for the v4l2_fh->available list.
39 * struct v4l2_subscribed_event_ops - Subscribed event operations.
54 * struct v4l2_subscribed_event - Internal struct representing a subscribed
57 * @list: List node for the v4l2_fh->subscribed list.
60 * @flags: Copy of v4l2_event_subscription->flags.
85 * v4l2_event_dequeue - Dequeue events from video device.
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| /linux/include/linux/mfd/ |
| H A D | dln2.h | 1 /* SPDX-License-Identifier: GPL-2.0 */
8 u16 handle; /* sub-driver handle (internally used only) */
13 * dln2_event_cb_t - event callback function signature
15 * @pdev - the sub-device that registered this callback
16 * @echo - the echo header field received in the message
17 * @data - the data payload
18 * @len - the data payload length
20 * The callback function is called in interrupt context and the data payload is
29 * dl2n_register_event_cb - register a callback function for an event
31 * @pdev - the sub-device that registers the callback
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| /linux/Documentation/filesystems/ |
| H A D | relay.rst | 1 .. SPDX-License-Identifier: GPL-2.0
9 to userspace via user-defined 'relay channels'.
11 A 'relay channel' is a kernel->user data relay mechanism implemented
12 as a set of per-cpu kernel buffers ('channel buffers'), each
25 filtering - this also is left to the kernel client. The purpose is to
29 details of the function parameters are documented along with the
30 functions in the relay interface code - please see that for details.
36 sub-buffers. Messages are written to the first sub-buffer until it is
38 the next (if available). Messages are never split across sub-buffers.
40 sub-buffer, while the kernel continues writing to the next.
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| /linux/Documentation/leds/ |
| H A D | leds-class-flash.rst | 5 Some LED devices provide two modes - torch and flash. In the LED subsystem
6 those modes are supported by LED class (see Documentation/leds/leds-class.rst)
13 registered in the LED subsystem with led_classdev_flash_register function.
16 (see Documentation/ABI/testing/sysfs-class-led-flash)
18 - flash_brightness
19 - max_flash_brightness
20 - flash_timeout
21 - max_flash_timeout
22 - flash_strobe
23 - flash_fault
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| /linux/arch/sparc/kernel/ |
| H A D | helpers.S | 1 /* SPDX-License-Identifier: GPL-2.0-only */
4 .type __flushw_user,#function
9 1: save %sp, -128, %sp
13 1: sub %g2, 1, %g2
18 .size __flushw_user,.-__flushw_user
27 .type stack_trace_flush,#function
34 sub %g1, 1, %g3
37 sub %g2, 1, %g2
42 sub %g3, 1, %g3
49 .size stack_trace_flush,.-stack_trace_flush
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| /linux/tools/lib/python/kdoc/ |
| H A D | kdoc_parser.py | 2 # SPDX-License-Identifier: GPL-2.0
23 # Regular expressions used to parse kernel-doc markups at KernelDoc class.
43 # @{section-name}:
61 type_param = KernRe(r"@(\w*((\.\w+)|(->\w+))*(\.\.\.)?)", cache=False)
72 r'(?:[-:].*)?$', # description (not captured)
83 (KernRe(r"__attribute__\s*\(\([a-z0-9,_\*\s\(\)]*\)\)", flags=re.I | re.S, cache=False), ' '),
115 # - a recursive pattern: (?1)
116 # - an atomic grouping: (?>...)
147 re.S), r'unsigned long \1[1 << ((\2) - 1)]'),
167 # Transforms for function prototypes
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| /linux/tools/perf/util/ |
| H A D | setup.py | 3 from re import sub
9 # Check if CC has options, as is the case in yocto, where it uses CC="cc --sysroot..."
18 # mypy: disable-error-code="union-attr"
19 cc_is_clang = b"clang version" in Popen([cc, "-v"], stderr=PIPE).stderr.readline()
32 "-o", "/dev/null",
33 path.join(src_feature_tests, "test-hello.c")
42 vars[var] = sub("-specs=[^ ]+", "", vars[var])
43 if not clang_has_option("-mcet"):
44 vars[var] = sub("-mcet", "", vars[var])
45 if not clang_has_option("-fcf-protection"):
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| /linux/tools/testing/selftests/drivers/net/bonding/ |
| H A D | netcons_over_bonding.sh | 2 # SPDX-License-Identifier: GPL-2.0
28 set -euo pipefail
30 SCRIPTDIR=$(dirname "$(readlink -e "${BASH_SOURCE[0]}")")
58 function setup_bonding_ifaces() {
64 if ! ip -n "${TXNS}" link add "${BOND_TX_MAIN_IF}" type bond mode balance-rr
70 trap - EXIT
76 ip -n "${TXNS}" \
78 ip -n "${TXNS}" \
80 ip -n "${TXNS}" \
82 ip -n "${TXNS}" \
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| /linux/arch/sparc/lib/ |
| H A D | NGbzero.S | 1 /* SPDX-License-Identifier: GPL-2.0 */
19 .type NGmemset, #function
32 .type NGbzero, #function
39 * %g7: store-init %asi to use
40 * %o4: non-store-init %asi to use
53 sub %g2, %g1, %g1
54 sub %o1, %g1, %o1
61 andcc %o0, (64 - 1), %g1
64 sub %g2, %g1, %g1
65 sub %o1, %g1, %o1
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| H A D | GENbzero.S | 1 /* SPDX-License-Identifier: GPL-2.0 */
20 .type GENmemset, #function
33 .type GENbzero, #function
52 sub %g2, %g1, %g1
53 sub %o1, %g1, %o1
60 andcc %o0, (64 - 1), %g1
63 sub %g2, %g1, %g1
64 sub %o1, %g1, %o1
71 andn %o1, (64 - 1), %g1
72 sub %o1, %g1, %o1
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| /linux/arch/mips/include/asm/ |
| H A D | asm.h | 14 * away by gas in -O mode. These nops are however required to fill delay
21 #include <asm/asm-eva.h>
22 #include <asm/isa-rev.h>
42 * LEAF - declare leaf routine
48 .type symbol, @function; \
55 * NESTED - declare nested routine entry point
61 .type symbol, @function; \
68 * END - mark end of function
70 #define END(function) \
72 .end function; \
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| /linux/sound/soc/uniphier/ |
| H A D | aio-dma.c | 1 // SPDX-License-Identifier: GPL-2.0
5 // Copyright (c) 2016-2018 Socionext Inc.
7 #include <linux/dma-mapping.h>
28 static void aiodma_pcm_irq(struct uniphier_aio_sub *sub) in aiodma_pcm_irq() argument
30 struct snd_pcm_runtime *runtime = sub->substream->runtime; in aiodma_pcm_irq()
31 int bytes = runtime->period_size * in aiodma_pcm_irq()
32 runtime->channels * samples_to_bytes(runtime, 1); in aiodma_pcm_irq()
35 spin_lock(&sub->lock); in aiodma_pcm_irq()
36 ret = aiodma_rb_set_threshold(sub, runtime->dma_bytes, in aiodma_pcm_irq()
37 sub->threshold + bytes); in aiodma_pcm_irq()
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| /linux/Documentation/devicetree/bindings/pinctrl/ |
| H A D | abilis,tb10x-iomux.txt | 5 -------------------
7 - compatible: should be "abilis,tb10x-iomux";
8 - reg: should contain the physical address and size of the pin controller's
12 Function definitions
13 --------------------
15 Functions are defined (and referenced) by sub-nodes of the pin controller.
16 Every sub-node defines exactly one function (implying a set of pins).
17 Every function is associated to one named pin group inside the pin controller
19 controller sub-nodes.
21 Required function definition subnode properties:
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| H A D | img,pistachio-pinctrl.txt | 8 each. The GPIO banks are represented as sub-nodes of the pad controller node.
10 Please refer to pinctrl-bindings.txt, ../gpio/gpio.txt, and
11 ../interrupt-controller/interrupts.txt for generic information regarding
15 --------------------------------------------
16 - compatible: "img,pistachio-system-pinctrl".
17 - reg: Address range of the pinctrl registers.
19 Required properties for GPIO bank sub-nodes:
20 --------------------------------------------
21 - interrupts: Interrupt line for the GPIO bank.
22 - gpio-controller: Indicates the device is a GPIO controller.
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| H A D | microchip,pic32-pinctrl.txt | 3 Please refer to pinctrl-bindings.txt, ../gpio/gpio.txt, and
4 ../interrupt-controller/interrupts.txt for generic information regarding
8 used for a specific device or function. This node represents configurations of
9 pins, optional function, and optional mux related configuration.
12 - compatible: "microchip,pic32mada-pinctrl"
13 - reg: Address range of the pinctrl registers.
14 - clocks: Clock specifier (see clock bindings for details)
16 Required properties for pin configuration sub-nodes:
17 - pins: List of pins to which the configuration applies.
19 Optional properties for pin configuration sub-nodes:
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| /linux/scripts/ |
| H A D | generate_initcall_order.pl | 2 # SPDX-License-Identifier: GPL-2.0
18 my $jobs = {}; # child process pid -> file handle
20 my $results = {}; # object index -> [ { level, secname }, ... ]
24 sub get_online_processors {
39 sub write_results {
45 my $level = $initcalls->{$counter}->{'level'};
47 # section name for the initcall function
48 my $secname = $initcalls->{$counter}->{'module'} . '__' .
50 $initcalls->{$counter}->{'line'} . '_' .
51 $initcalls->{$counter}->{'function'};
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| /linux/arch/hexagon/mm/ |
| H A D | copy_from_user.S | 1 /* SPDX-License-Identifier: GPL-2.0-only */
5 * Copyright (c) 2010-2011, The Linux Foundation. All rights reserved.
16 * Therefore, we duplicate the function, and handle faulting addresses
17 * differently for each function
48 /* Normal copy loops. Do epilog. Use src-src_sav to compute distance */
49 /* X - (A - B) == X + B - A */
54 r2 += sub(src_sav,src)
64 r2 += sub(src_sav,src)
74 r2 += sub(src_sav,src)
84 r2 += sub(src_sav,src)
|
| /linux/arch/arm/kernel/ |
| H A D | entry-ftrace.S | 1 /* SPDX-License-Identifier: GPL-2.0-only */
7 #include "entry-header.S"
10 * When compiling with -pg, gcc inserts a call to the mcount routine at the
11 * start of every function. In mcount, apart from the function's address (in
12 * lr), we need to get hold of the function's caller's address.
22 * mcount can be thought of as a function called in the middle of a subroutine
33 sub \rd, \rd, #MCOUNT_INSN_SIZE
57 mcount_adjust_addr r0, lr @ instrumented function
67 str lr, [sp, #-8]! @ store LR as PC and make space for CPSR/OLD_R0,
74 str lr, [sp, #-4]! @ store previous LR as LR
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| /linux/tools/testing/selftests/bpf/progs/ |
| H A D | verifier_tailcall_jit.c | 1 // SPDX-License-Identifier: GPL-2.0
20 static __naked int sub(void) in sub() function
34 /* program entry for main(), regular function prologue */
41 * - establish memory location for tail call counter at &rbp[-8];
42 * - spill tail_call_cnt_ptr at &rbp[-16];
43 * - expect tail call counter to be passed in rax;
44 * - for entry program rax is a raw counter, value < 33;
45 * - for tail called program rax is tail_call_cnt_ptr (value > 33).
53 __jited("L0: pushq %rax") /* rbp[-8] = rax */
54 __jited("L1: pushq %rax") /* rbp[-16] = rax */
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| /linux/arch/hexagon/lib/ |
| H A D | memset.S | 1 /* SPDX-License-Identifier: GPL-2.0-only */
8 /* Replaces the standard library function memset */
15 .type \name, @function
20 .size \name, . - \name
23 /* FUNCTION: memset (v2 version) */
35 r9 = sub(r6, r7) /* bytes until double alignment */
64 r3:2 = sub(r3:2, r7:6)
77 r3:2 = sub(r3:2, r7:6)
90 r3:2 = sub(r3:2, r7:6)
113 r3:2 = sub(r3:2, r7:6)
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| /linux/tools/perf/pmu-events/ |
| H A D | metric.py | 1 # SPDX-License-Identifier: (LGPL-2.1 OR BSD-2-Clause)
19 def ToPerfJson(self) -> str:
23 def ToPython(self) -> str:
31 def Equals(self, other) -> bool:
35 def Substitute(self, name: str, expression: 'Expression') -> 'Expression':
38 def __str__(self) -> str:
41 def __or__(self, other: Union[int, float, 'Expression']) -> 'Operator':
44 def __ror__(self, other: Union[int, float, 'Expression']) -> 'Operator':
47 def __xor__(self, other: Union[int, float, 'Expression']) -> 'Operator':
50 def __and__(self, other: Union[int, float, 'Expression']) -> 'Operator':
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| /linux/tools/perf/Documentation/ |
| H A D | perf-script-perl.txt | 1 perf-script-perl(1)
5 ----
6 perf-script-perl - Process trace data with a Perl script
9 --------
11 'perf script' [-s [Perl]:script[.pl] ]
14 -----------
17 built-in Perl interpreter. It reads and processes the input file and
22 ---------------
25 -g perl' in the same directory as an existing perf.data trace file.
31 ~/libexec/perf-core/scripts/perl for typical examples showing how to
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