| /Linux-v6.1/Documentation/devicetree/bindings/gpio/ |
| D | nxp,pcf8575.yaml | 1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: PCF857x-compatible I/O expanders
10 - Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
13 The PCF857x-compatible chips have "quasi-bidirectional" I/O lines that can be
14 driven high by a pull-up current source or driven low to ground. This
25 - maxim,max7328
26 - maxim,max7329
27 - nxp,pca8574
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| /Linux-v6.1/tools/gpio/ |
| D | gpio-event-mon.c | 1 // SPDX-License-Identifier: GPL-2.0-only
3 * gpio-event-mon - monitor GPIO line events from userspace
8 * gpio-event-mon -n <device-name> -o <offset>
26 #include "gpio-utils.h"
29 unsigned int *lines, in monitor_device() argument
42 return -ENOMEM; in monitor_device()
45 if (cfd == -1) { in monitor_device()
46 ret = -errno; in monitor_device()
51 ret = gpiotools_request_line(device_name, lines, num_lines, config, in monitor_device()
52 "gpio-event-mon"); in monitor_device()
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| D | gpio-hammer.c | 1 // SPDX-License-Identifier: GPL-2.0-only
3 * gpio-hammer - example swiss army knife to shake GPIO lines on a system
8 * gpio-hammer -n <device-name> -o <offset1> -o <offset2>
23 #include "gpio-utils.h"
25 int hammer_device(const char *device_name, unsigned int *lines, int num_lines, in hammer_device() argument
30 char swirr[] = "-\\|/"; in hammer_device()
39 ret = gpiotools_request_line(device_name, lines, num_lines, in hammer_device()
40 &config, "gpio-hammer"); in hammer_device()
55 fprintf(stdout, "Hammer lines ["); in hammer_device()
57 fprintf(stdout, "%d", lines[i]); in hammer_device()
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| /Linux-v6.1/Documentation/trace/rv/ |
| D | deterministic_automata.rst | 10 - *X* is the set of states;
11 - *E* is the finite set of events;
12 - x\ :subscript:`0` is the initial state;
13 - X\ :subscript:`m` (subset of *X*) is the set of marked (or final) states.
14 - *f* : *X* x *E* -> *X* $ is the transition function. It defines the state
22 - *X* = { ``preemptive``, ``non_preemptive``}
23 - *E* = { ``preempt_enable``, ``preempt_disable``, ``sched_waking``}
24 - x\ :subscript:`0` = ``preemptive``
25 - X\ :subscript:`m` = {``preemptive``}
26 - *f* =
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| /Linux-v6.1/tools/thermal/tmon/ |
| D | tmon.8 | 2 # SPDX-License-Identifier: GPL-2.0
4 \fBtmon\fP - A monitoring and testing tool for Linux kernel thermal subsystem
13 real-time thermal data; tune
16 states via sysfs.
22 - show thermal zone information
23 - show cooling device information
24 - show trip point binding within each thermal zone
25 - show trip point and cooling device instance bindings
28 - show temperature of all thermal zones w.r.t. its trip points and types
29 - show states of all cooling devices
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| /Linux-v6.1/arch/arm64/boot/dts/qcom/ |
| D | sdm845-cheza.dtsi | 1 // SPDX-License-Identifier: (GPL-2.0+ OR MIT)
8 #include <dt-bindings/input/input.h>
9 #include <dt-bindings/regulator/qcom,rpmh-regulator.h>
25 stdout-path = "serial0:115200n8";
29 compatible = "pwm-backlight";
31 enable-gpios = <&tlmm 37 GPIO_ACTIVE_HIGH>;
32 power-supply = <&ppvar_sys>;
33 pinctrl-names = "default";
34 pinctrl-0 = <&ap_edp_bklten>;
37 /* FIXED REGULATORS - parents above children */
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| /Linux-v6.1/drivers/mtd/nand/raw/ |
| D | nandsim.c | 1 // SPDX-License-Identifier: GPL-2.0-or-later
137 MODULE_PARM_DESC(access_delay, "Initial page access delay (microseconds)");
142 MODULE_PARM_DESC(bus_width, "Chip's bus width (8- or 16-bit)");
143 MODULE_PARM_DESC(do_delays, "Simulate NAND delays using busy-waits if not zero");
165 "be correctable in 512-byte blocks");
182 /* Busy-wait delay macros (microseconds, milliseconds) */
189 #define NS_IS_INITIALIZED(ns) ((ns)->geom.totsz != 0)
192 #define NS_STATUS_OK(ns) (NAND_STATUS_READY | (NAND_STATUS_WP * ((ns)->lines.wp == 0)))
199 (((ns)->regs.row * (ns)->geom.pgszoob) + (ns)->regs.column)
202 #define NS_RAW_OFFSET_OOB(ns) (NS_RAW_OFFSET(ns) + ns->geom.pgsz)
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| /Linux-v6.1/arch/arm/boot/dts/ |
| D | dra72-evm-common.dtsi | 1 // SPDX-License-Identifier: GPL-2.0-only
3 * Copyright (C) 2014-2016 Texas Instruments Incorporated - https://www.ti.com/
5 /dts-v1/;
8 #include "dra7-ipu-dsp-common.dtsi"
9 #include <dt-bindings/gpio/gpio.h>
10 #include <dt-bindings/clock/ti-dra7-atl.h>
13 compatible = "ti,dra72-evm", "ti,dra722", "ti,dra72", "ti,dra7";
20 stdout-path = &uart1;
23 evm_12v0: fixedregulator-evm12v0 {
25 compatible = "regulator-fixed";
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| D | imx6-logicpd-baseboard.dtsi | 1 // SPDX-License-Identifier: GPL-2.0
7 compatible = "gpio-keys";
9 button-0 {
13 debounce-interval = <10>;
14 wakeup-source;
17 button-1 {
21 debounce-interval = <10>;
22 wakeup-source;
25 button-2 {
29 debounce-interval = <10>;
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| D | dra7-evm.dts | 1 // SPDX-License-Identifier: GPL-2.0-only
3 * Copyright (C) 2013 Texas Instruments Incorporated - https://www.ti.com/
5 /dts-v1/;
8 #include "dra7-evm-common.dtsi"
9 #include "dra74x-mmc-iodelay.dtsi"
13 compatible = "ti,dra7-evm", "ti,dra742", "ti,dra74", "ti,dra7";
20 evm_12v0: fixedregulator-evm_12v0 {
22 compatible = "regulator-fixed";
23 regulator-name = "evm_12v0";
24 regulator-min-microvolt = <12000000>;
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| /Linux-v6.1/include/linux/mfd/ |
| D | tps65010.h | 32 * ----------------------------------------------------------------------------
34 * ----------------------------------------------------------------------------
107 * ----------------------------------------------------------------------------
109 * ----------------------------------------------------------------------------
125 * ----------------------------------------------------------------------------
127 * ----------------------------------------------------------------------------
131 * 0 mA -- DON'T DRAW (might supply power instead)
132 * 100 mA -- usb unit load (slowest charge rate)
133 * 500 mA -- usb high power (fast battery charge)
178 * struct tps65010_board - packages GPIO and LED lines
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| /Linux-v6.1/Documentation/RCU/Design/Data-Structures/ |
| D | Data-Structures.rst | 15 Data-Structure Relationships
25 .. kernel-figure:: BigTreeClassicRCU.svg
34 which results in a three-level ``rcu_node`` tree.
38 The purpose of this combining tree is to allow per-CPU events
39 such as quiescent states, dyntick-idle transitions,
42 Quiescent states are recorded by the per-CPU ``rcu_data`` structures,
43 and other events are recorded by the leaf-level ``rcu_node``
54 As can be seen from the diagram, on a 64-bit system
55 a two-level tree with 64 leaves can accommodate 1,024 CPUs, with a fanout
58 +-----------------------------------------------------------------------+
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| /Linux-v6.1/Documentation/networking/ |
| D | phy.rst | 26 #. Increase code-reuse
27 #. Increase overall code-maintainability
67 for one of the users. (e.g. "git grep fsl,.*-mdio arch/powerpc/boot/dts/")
72 The Reduced Gigabit Medium Independent Interface (RGMII) is a 12-pin
74 data lines. Due to this design decision, a 1.5ns to 2ns delay must be added
75 between the clock line (RXC or TXC) and the data lines to let the PHY (clock
76 sink) have a large enough setup and hold time to sample the data lines correctly. The
84 or the PCB traces insert the correct 1.5-2ns delay
87 for the transmit data lines (TXD[3:0]) processed by the PHY device
90 for the receive data lines (RXD[3:0]) processed by the PHY device
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| /Linux-v6.1/drivers/gpio/ |
| D | gpio-pcf857x.c | 1 // SPDX-License-Identifier: GPL-2.0-or-later
63 * that pin be used as an input; it's not an open-drain model, but acts
64 * a bit like one. This is described as "quasi-bidirectional"; read the
84 /*-------------------------------------------------------------------------*/
86 /* Talk to 8-bit I/O expander */
98 /* Talk to 16-bit I/O expander */
120 /*-------------------------------------------------------------------------*/
127 mutex_lock(&gpio->lock); in pcf857x_input()
128 gpio->out |= (1 << offset); in pcf857x_input()
129 status = gpio->write(gpio->client, gpio->out); in pcf857x_input()
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| /Linux-v6.1/drivers/media/i2c/ |
| D | vs6624_regs.h | 1 /* SPDX-License-Identifier: GPL-2.0-only */
3 * vs6624 - ST VS6624 CMOS image sensor registers
22 #define VS6624_USER_CMD 0x0180 /* user level control of operating states */
98 #define VS6624_INIT_PIPE_SETUP 0x0482 /* select initial pipe setup bank */
128 #define VS6624_DIRECT_COARSE_MSB 0x1195 /* coarse integration lines for Direct Mode MSB */
129 #define VS6624_DIRECT_COARSE_LSB 0x1196 /* coarse integration lines for Direct Mode LSB */
136 #define VS6624_FLASH_COARSE_MSB 0x11A5 /* coarse integration lines for Flash Gun Mode MSB */
137 #define VS6624_FLASH_COARSE_LSB 0x11A6 /* coarse integration lines for Flash Gun Mode LSB */
|
| /Linux-v6.1/Documentation/admin-guide/device-mapper/ |
| D | dm-raid.rst | 2 dm-raid
5 The device-mapper RAID (dm-raid) target provides a bridge from DM to MD.
6 It allows the MD RAID drivers to be accessed using a device-mapper
11 -----------------------
26 - Transitory layout
29 - rotating parity 0 with data continuation
32 - rotating parity N with data continuation
35 - rotating parity 0 with data restart
38 - rotating parity N with data restart
41 - rotating parity zero (left-to-right) with data restart
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| /Linux-v6.1/include/uapi/linux/ |
| D | vfio.h | 1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
37 /* Two-stage IOMMU */
43 * The No-IOMMU IOMMU offers no translation or isolation for devices and
44 * supports no ioctls outside of VFIO_CHECK_EXTENSION. Use of VFIO's No-IOMMU
96 /* -------- IOCTLs for VFIO file descriptor (/dev/vfio/vfio) -------- */
99 * VFIO_GET_API_VERSION - _IO(VFIO_TYPE, VFIO_BASE + 0)
110 * VFIO_CHECK_EXTENSION - _IOW(VFIO_TYPE, VFIO_BASE + 1, __u32)
119 * VFIO_SET_IOMMU - _IOW(VFIO_TYPE, VFIO_BASE + 2, __s32)
126 * Return: 0 on success, -errno on failure
131 /* -------- IOCTLs for GROUP file descriptors (/dev/vfio/$GROUP) -------- */
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| /Linux-v6.1/drivers/macintosh/ |
| D | via-macii.c | 1 // SPDX-License-Identifier: GPL-2.0
3 * Device driver for the via ADB on (many) Mac II-class machines
13 * 1999-08-02 (jmt) - Initial rewrite for Unified ADB.
14 * 2000-03-29 Tony Mantler <tonym@mac.linux-m68k.org>
15 * - Big overhaul, should actually work now.
16 * 2006-12-31 Finn Thain - Another overhaul.
24 * ftp://ftp.apple.com/developer/Tool_Chest/Devices_-_Hardware/Apple_Desktop_Bus/
39 /* VIA registers - spaced 0x200 bytes apart */
41 #define B 0 /* B-side data */
42 #define A RS /* A-side data */
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| /Linux-v6.1/Documentation/scsi/ |
| D | ChangeLog.lpfc | 2 * Please read the associated RELEASE-NOTES file !!!
8 * Fixed build warning for 2.6.12-rc2 kernels: mempool_alloc now
17 to luns on nodes in NPR or other relevant states (PLOGI,
19 * Removed FC_TRANSPORT_PATCHESxxx defines. They're in 2.6.12-rc1.
26 * Added PCI ID for LP10000-S.
31 * Zero-out response sense length in lpfc_scsi_prep_cmnd to prevent
33 - was causing spurious 0710 messages.
50 * Changed a few lines from patch submitted by Christoph Hellwig
55 - stop using volatile. if you need special ordering use memory
57 - switch lpfc_sli_pcimem_bcopy to take void * arguments.
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| /Linux-v6.1/drivers/i2c/algos/ |
| D | i2c-algo-bit.c | 1 // SPDX-License-Identifier: GPL-2.0+
3 * i2c-algo-bit.c: i2c driver algorithms for bit-shift adapters
5 * Copyright (C) 1995-2000 Simon G. Vogl
17 #include <linux/i2c-algo-bit.h>
20 /* ----- global defines ----------------------------------------------- */
33 /* ----- global variables --------------------------------------------- */
35 static int bit_test; /* see if the line-setting functions work */
37 MODULE_PARM_DESC(bit_test, "lines testing - 0 off; 1 report; 2 fail if stuck");
43 "debug level - 0 off; 1 normal; 2 verbose; 3 very verbose");
46 /* --- setting states on the bus with the right timing: --------------- */
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| /Linux-v6.1/drivers/net/slip/ |
| D | slhc.c | 3 * over low speed serial lines).
21 * - Initial distribution.
28 * - 01-31-90 initial adaptation (from 1.19)
29 * PPP.05 02-15-90 [ks]
30 * PPP.08 05-02-90 [ks] use PPP protocol field to signal compression
31 * PPP.15 09-90 [ks] improve mbuf handling
32 * PPP.16 11-02 [karn] substantially rewritten to use NOS facilities
34 * - Feb 1991 Bill_Simpson@um.cc.umich.edu
39 * - Jul 1994 Dmitry Gorodchanin
41 * - Oct 1994 Dmitry Gorodchanin
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| /Linux-v6.1/Documentation/admin-guide/ |
| D | spkguide.txt | 16 Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A
25 http://linux-speakup.org/. Speakup is a set of patches to the standard
72 acntsa -- Accent SA
73 acntpc -- Accent PC
74 apollo -- Apollo
75 audptr -- Audapter
76 bns -- Braille 'n Speak
77 dectlk -- DecTalk Express (old and new, db9 serial only)
78 decext -- DecTalk (old) External
79 dtlk -- DoubleTalk PC
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| /Linux-v6.1/init/ |
| D | main.c | 1 // SPDX-License-Identifier: GPL-2.0-only
7 * GK 2/5/95 - Changed to support mounting root fs via NFS
9 * Moan early if gcc is old, avoiding bogus kernels - Paul Gortmaker, May '96
126 * two things - IRQ must not be enabled before the flag is cleared and some
136 * Boot command-line arguments
145 /* Untouched command line saved by arch-specific code. */
208 int n = strlen(p->str); in obsolete_checksetup()
209 if (parameqn(line, p->str, n)) { in obsolete_checksetup()
210 if (p->early) { in obsolete_checksetup()
217 } else if (!p->setup_func) { in obsolete_checksetup()
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| /Linux-v6.1/Documentation/sound/hd-audio/ |
| D | notes.rst | 2 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-v6.1/sound/hda/ |
| D | hdac_stream.c | 1 // SPDX-License-Identifier: GPL-2.0-only
3 * HD-audio stream operations
18 * transitions. The states are not formally defined in the code but loosely
25 * +--+-------+
27 * +--+----+--+
31 * +--+----+--+
33 * +--+----+--+
38 * +--+----+--+
40 * +--+----+--+
44 * +--+----+--+
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