| /linux/Documentation/hwmon/ |
| H A D | ina2xx.rst | 10 Addresses: I2C 0x40 - 0x4f
20 Addresses: I2C 0x40 - 0x4f
30 Addresses: I2C 0x40 - 0x4f
40 Addresses: I2C 0x40 - 0x4f
50 Addresses: I2C 0x40 - 0x4f
60 Addresses: I2C 0x40 - 0x4f
70 Addresses: I2C 0x40 - 0x4f
80 -----------
82 The INA219 is a high-side current shunt and power monitor with an I2C
86 The INA220 is a high or low side current shunt and power monitor with an I2C
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| H A D | max16065.rst | 11 Addresses scanned: -
15 http://datasheets.maxim-ic.com/en/ds/MAX16065-MAX16066.pdf
21 Addresses scanned: -
25 http://datasheets.maxim-ic.com/en/ds/MAX16067.pdf
31 Addresses scanned: -
35 http://datasheets.maxim-ic.com/en/ds/MAX16068.pdf
41 Addresses scanned: -
45 http://datasheets.maxim-ic.com/en/ds/MAX16070-MAX16071.pdf
47 Author: Guenter Roeck <linux@roeck-us.net>
51 -----------
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| /linux/drivers/gpio/ |
| H A D | gpio-mc33880.c | 1 // SPDX-License-Identifier: GPL-2.0-only
3 * MC33880 high-side/low-side switch GPIO driver
8 * Freescale MC33880 high-side/low-side switch
45 return spi_write(mc->spi, &mc->port_config, sizeof(mc->port_config)); in mc33880_write_config()
52 mc->port_config |= 1 << offset; in __mc33880_set()
54 mc->port_config &= ~(1 << offset); in __mc33880_set()
64 mutex_lock(&mc->lock); in mc33880_set()
68 mutex_unlock(&mc->lock); in mc33880_set()
77 pdata = dev_get_platdata(&spi->dev); in mc33880_probe()
78 if (!pdata || !pdata->base) { in mc33880_probe()
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| /linux/Documentation/admin-guide/media/ |
| H A D | si476x.rst | 1 .. SPDX-License-Identifier: GPL-2.0
12 -------------------
14 - According to the SiLabs' datasheet it is possible to update the
15 firmware of the radio chip in the run-time, thus bringing it to the
23 -------------------------------
31 * /sys/kernel/debug/<device-name>/acf
52 0x05 smute 0 - Audio is not soft muted
53 1 - Audio is soft muted
60 0x10 pilot 0 - Stereo pilot is not present
61 1 - Stereo pilot is present
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| /linux/net/ipv4/ |
| H A D | Kconfig | 1 # SPDX-License-Identifier: GPL-2.0-only
10 intend to participate in the MBONE, a high bandwidth network on top
40 so-called IP spoofing, however it can pose problems if you use
42 than packets from that host to you) or if you operate a non-routing
52 <file:Documentation/networking/ip-sysctl.rst>.
71 address into account. Furthermore, the TOS (Type-Of-Service) field
89 equal "cost" and chooses one of them in a non-deterministic fashion
132 <file:Documentation/admin-guide/nfs/nfsroot.rst> for details.
147 Read <file:Documentation/admin-guide/nfs/nfsroot.rst> for details.
160 <file:Documentation/admin-guide/nfs/nfsroot.rst> for details.
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| /linux/drivers/usb/gadget/udc/ |
| H A D | Kconfig | 1 # SPDX-License-Identifier: GPL-2.0
7 # NOTE: Gadget support ** DOES NOT ** depend on host-side CONFIG_USB !!
9 # - Host systems (like PCs) need CONFIG_USB (with "A" jacks).
10 # - Peripherals (like PDAs) need CONFIG_USB_GADGET (with "B" jacks).
11 # - Some systems have both kinds of controllers.
13 # With help from a special transceiver and a "Mini-AB" jack, systems with
14 # both kinds of controller can also support "USB On-the-Go" (CONFIG_USB_OTG).
22 # - integrated/SOC controllers first
23 # - licensed IP used in both SOC and discrete versions
24 # - discrete ones (including all PCI-only controllers)
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| /linux/include/sound/sof/ |
| H A D | control.h | 1 /* SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause) */
19 /* channel positions - uses same values as ALSA */
30 SOF_CHMAP_SL, /**< side left */
31 SOF_CHMAP_SR, /**< side right */
39 SOF_CHMAP_FLH, /**< front left high */
40 SOF_CHMAP_FCH, /**< front centre high */
41 SOF_CHMAP_FRH, /**< front right high */
51 SOF_CHMAP_TSL, /**< top side left */
52 SOF_CHMAP_TSR, /**< top side right */
63 /* per channel data - uses struct sof_ipc_ctrl_value_chan */
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| /linux/tools/testing/selftests/gpio/ |
| H A D | gpio-mockup.sh | 1 #!/bin/bash -efu
2 # SPDX-License-Identifier: GPL-2.0
7 #4: skip test - including run as non-root user
13 module="gpio-mockup"
29 echo "$0 [-frv] [-t type]"
30 echo "-f: full test (minimal set run by default)"
31 echo "-r: test random lines as well as fence posts"
32 echo "-t: interface type:"
33 echo " cdev (character device ABI) - default"
36 echo "-v: verbose progress reporting"
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| /linux/include/linux/dma/ |
| H A D | k3-psil.h | 1 /* SPDX-License-Identifier: GPL-2.0 */
3 * Copyright (C) 2019 Texas Instruments Incorporated - https://www.ti.com
16 * enum udma_tp_level - Channel Throughput Levels
18 * @UDMA_TP_HIGH: High Throughput channel
19 * @UDMA_TP_ULTRAHIGH: Ultra High Throughput channel
29 * enum psil_endpoint_type - PSI-L Endpoint type
43 * struct psil_endpoint_config - PSI-L Endpoint configuration
44 * @ep_type: PSI-L endpoint type
50 * @pdma_acc32: ACC32 must be enabled on the PDMA side
51 * @pdma_burst: BURST must be enabled on the PDMA side
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| /linux/drivers/usb/gadget/function/ |
| H A D | u_ether.h | 1 /* 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
29 MODULE_PARM_DESC(qmult, "queue length multiplier at high/super speed");\
42 * This represents the USB side of an "ethernet" link, managed by a USB
58 /* endpoints handle full and/or high speeds */
96 /* gether_setup - initialize one ethernet-over-usb link
99 * host side of the link is recorded
122 * gether_register_netdev - register the net device
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| /linux/include/uapi/linux/ |
| H A D | virtio_snd.h | 1 /* SPDX-License-Identifier: BSD-3-Clause */
122 /* function group node id (High Definition Audio Specification 7.1.2) */
132 /* 0 ... virtio_snd_config::jacks - 1 */
146 /* pin configuration (High Definition Audio Specification 7.3.3.31) */
148 /* pin capabilities (High Definition Audio Specification 7.3.4.9) */
172 /* 0 ... virtio_snd_config::streams - 1 */
279 /* 0 ... virtio_snd_config::streams - 1 */
297 /* 0 ... virtio_snd_config::chmaps - 1 */
312 VIRTIO_SND_CHMAP_SL, /* side left */
313 VIRTIO_SND_CHMAP_SR, /* side right */
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| /linux/Documentation/driver-api/usb/ |
| H A D | gadget.rst | 11 This document presents a Linux-USB "Gadget" kernel mode API, for use
17 - Supports USB 2.0, for high speed devices which can stream data at
20 - Handles devices with dozens of endpoints just as well as ones with
21 just two fixed-function ones. Gadget drivers can be written so
24 - Flexible enough to expose more complex USB device capabilities such
28 - USB "On-The-Go" (OTG) support, in conjunction with updates to the
29 Linux-USB host side.
31 - Sharing data structures and API models with the Linux-USB host side
32 API. This helps the OTG support, and looks forward to more-symmetric
34 side drivers).
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| /linux/Documentation/ABI/stable/ |
| H A D | sysfs-driver-aspeed-vuart | 1 What: /sys/bus/platform/drivers/aspeed-vuart/*/lpc_address
4 Description: Configures which IO port the host side of the UART
5 will appear on the host <-> BMC LPC bus.
9 What: /sys/bus/platform/drivers/aspeed-vuart/*/sirq
12 Description: Configures which interrupt number the host side of
13 the UART will appear on the host <-> BMC LPC bus.
17 What: /sys/bus/platform/drivers/aspeed-vuart/*/sirq_polarity
22 Set to 0 for active-low or 1 for active-high.
|
| /linux/Documentation/sound/designs/ |
| H A D | channel-mapping-api.rst | 2 ALSA PCM channel-mapping API
38 the kernel/user-space ABI perspective. It uses only the existing
57 ---
61 ``type data-bytes ch0 ch1 ch2...``
71 type is where pair-wise channels are swappable. For example, when you
88 /* this follows the alsa-lib mixer channel value + 3 */
95 SNDRV_CHMAP_SL, /* side left */
96 SNDRV_CHMAP_SR, /* side right */
105 SNDRV_CHMAP_FLH, /* front left high */
106 SNDRV_CHMAP_FCH, /* front center high */
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| /linux/Documentation/admin-guide/hw-vuln/ |
| H A D | spectre.rst | 1 .. SPDX-License-Identifier: GPL-2.0
3 Spectre Side Channels
6 Spectre is a class of side channel attacks that exploit branch prediction
8 bypassing access controls. Speculative execution side channel exploits
14 -------------------
16 Speculative execution side channel methods affect a wide range of modern
17 high performance processors, since most modern high speed processors
22 - Intel Core, Atom, Pentium, and Xeon processors
24 - AMD Phenom, EPYC, and Zen processors
26 - IBM POWER and zSeries processors
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| /linux/sound/pci/hda/ |
| H A D | Kconfig | 1 # SPDX-License-Identifier: GPL-2.0-only
2 menu "HD-Audio"
20 Say Y here to include support for Intel "High Definition
23 This option enables the HD-audio controller. Don't forget
27 will be called snd-hda-intel.
43 will be called snd-hda-tegra.
48 bool "Build hwdep interface for HD-audio driver"
51 Say Y here to build a hwdep interface for HD-audio driver.
52 This interface can be used for out-of-band communication
58 Say Y here to enable the HD-audio codec re-configuration feature.
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| /linux/tools/perf/pmu-events/arch/x86/jaketown/ |
| H A D | uncore-cache.json | 15 …ed in Counter 0. The filtering available is found in the control register - threshold, invert an…
31 … LLC was accessed - this includes code, data, prefetches and hints coming from L2. This has numer…
41 … LLC was accessed - this includes code, data, prefetches and hints coming from L2. This has numer…
51 … LLC was accessed - this includes code, data, prefetches and hints coming from L2. This has numer…
61 … LLC was accessed - this includes code, data, prefetches and hints coming from L2. This has numer…
161 …-- a clockwise ring and a counter-clockwise ring. On the left side of the ring, the 'UP' directio…
171 …-- a clockwise ring and a counter-clockwise ring. On the left side of the ring, the 'UP' directio…
181 …-- a clockwise ring and a counter-clockwise ring. On the left side of the ring, the 'UP' directio…
191 …-- a clockwise ring and a counter-clockwise ring. On the left side of the ring, the 'UP' directio…
201 …-- a clockwise ring and a counter-clockwise ring. On the left side of the ring, the 'UP' directio…
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| /linux/lib/raid6/ |
| H A D | s390vx.uc | 1 // SPDX-License-Identifier: GPL-2.0
5 * $#-way unrolled RAID6 gen/xor functions for s390
34 * operation returns 0xFF if the high bit of the byte is 1,
35 * or 0x00 if the high bit is 0. The result is stored in vector
42 #define LOAD_DATA(x, ptr) fpu_vlm(x, x + $# - 1, ptr)
43 #define STORE_DATA(x, ptr) fpu_vstm(x, x + $# - 1, ptr)
56 z0 = disks - 3; /* Highest data disk */
63 for (z = z0 - 1; z >= 0; z--) {
86 z0 = stop; /* P/Q right side optimization */
87 p = dptr[disks - 2]; /* XOR parity */
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| H A D | int.uc | 1 /* -*- linux-c -*- ------------------------------------------------------- *
3 * Copyright 2002-2004 H. Peter Anvin - All Rights Reserved
8 * Boston MA 02111-1307, USA; either version 2 of the License, or
11 * ----------------------------------------------------------------------- */
16 * $#-way unrolled portable integer math RAID-6 instruction set
45 * These sub-operations are separate inlines since they can sometimes be
46 * specially optimized using architecture-specific hacks.
62 * The MASK() operation returns 0xFF in any byte for which the high
63 * bit is 1, 0x00 for any byte for which the high bit is 0.
70 vv = (vv << 1) - (vv >> 7); /* Overflow on the top bit is OK */
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| /linux/Documentation/virt/ |
| H A D | guest-halt-polling.rst | 9 This provides the following benefits to host side polling:
15 2) The VM-exit cost can be avoided.
17 The downside of guest side polling is that polling is performed
25 ("per-cpu guest_halt_poll_ns"), which is adjusted by the algorithm
42 Division factor used to shrink per-cpu guest_halt_poll_ns when
49 Multiplication factor used to grow per-cpu guest_halt_poll_ns
50 when event occurs after per-cpu guest_halt_poll_ns
57 The per-cpu guest_halt_poll_ns eventually reaches zero
59 per-cpu guest_halt_poll_ns when growing. This can
70 to avoid it (per-cpu guest_halt_poll_ns will remain
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| /linux/Documentation/RCU/Design/Requirements/ |
| H A D | Requirements.rst | 16 ------------
18 Read-copy update (RCU) is a synchronization mechanism that is often used
19 as a replacement for reader-writer locking. RCU is unusual in that
20 updaters do not block readers, which means that RCU's read-side
28 thought of as an informal, high-level specification for RCU. It is
40 #. `Fundamental Non-Requirements`_
42 #. `Quality-of-Implementation Requirements`_
44 #. `Software-Engineering Requirements`_
53 ------------------------
58 #. `Grace-Period Guarantee`_
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| /linux/Documentation/driver-api/ |
| H A D | i2c.rst | 5 the "Inter-IC" bus, a simple bus protocol which is widely used where low
7 some vendors use another name (such as "Two-Wire Interface", TWI) for
11 there's a high speed extension (3.4 MHz) that's not yet found wide use.
12 I2C is a multi-master bus; open drain signaling is used to arbitrate
16 The Linux I2C programming interfaces support the master side of bus
17 interactions and the slave side. The programming interface is
38 .. kernel-doc:: include/linux/i2c.h
41 .. kernel-doc:: drivers/i2c/i2c-boardinfo.c
44 .. kernel-doc:: drivers/i2c/i2c-core-base.c
47 .. kernel-doc:: drivers/i2c/i2c-core-smbus.c
|
| /linux/Documentation/userspace-api/media/drivers/ |
| H A D | max2175.rst | 1 .. SPDX-License-Identifier: GPL-2.0
6 The MAX2175 driver implements the following driver-specific controls:
9 -------------------------------
12 Refer to Documentation/driver-api/media/v4l2-controls.rst for more details.
14 .. flat-table::
15 :header-rows: 0
16 :stub-columns: 0
19 * - ``(0)``
20 - I2S output is disabled.
21 * - ``(1)``
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| /linux/drivers/macintosh/ |
| H A 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/Documentation/devicetree/bindings/iio/addac/ |
| H A D | adi,ad74115.yaml | 1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Cosmin Tanislav <cosmin.tanislav@analog.com>
13 The AD74115H is a single-channel software configurable input/output
17 chip solution with an SPI interface. The device features a 16-bit ADC and a
18 14-bit DAC.
25 - adi,ad74115h
30 spi-max-frequency:
33 spi-cpol: true
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