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/Documentation/devicetree/bindings/sound/
Datmel,sama5d2-classd.yaml1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
4 ---
5 $id: http://devicetree.org/schemas/sound/atmel,sama5d2-classd.yaml#
6 $schema: http://devicetree.org/meta-schemas/core.yaml#
11 - Nicolas Ferre <nicolas.ferre@microchip.com>
12 - Alexandre Belloni <alexandre.belloni@bootlin.com>
13 - Claudiu Beznea <claudiu.beznea@microchip.com>
22 - items:
23 - const: atmel,sama5d2-classd
24 - items:
[all …]
Dtdm-slot.txt6 dai-tdm-slot-num : Number of slots in use.
7 dai-tdm-slot-width : Width in bits for each slot.
8 dai-tdm-slot-tx-mask : Transmit direction slot mask, optional
9 dai-tdm-slot-rx-mask : Receive direction slot mask, optional
12 dai-tdm-slot-num = <2>;
13 dai-tdm-slot-width = <8>;
14 dai-tdm-slot-tx-mask = <0 1>;
15 dai-tdm-slot-rx-mask = <1 0>;
19 the default snd_soc_of_xlate_tdm_slot_mask() will be used to generating the
23 for an active slot as default, and the default active bits are at the LSB of
[all …]
/Documentation/userspace-api/media/v4l/
Dvidioc-s-hw-freq-seek.rst1 .. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
13 VIDIOC_S_HW_FREQ_SEEK - Perform a hardware frequency seek
41 The ``rangelow`` and ``rangehigh`` fields can be set to a non-zero value
58 If this ioctl is called from a non-blocking filehandle, then ``EAGAIN``
65 .. flat-table:: struct v4l2_hw_freq_seek
66 :header-rows: 0
67 :stub-columns: 0
70 * - __u32
71 - ``tuner``
72 - The tuner index number. This is the same value as in the struct
[all …]
Dcolorspaces-defs.rst1 .. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
9 which defines the chromaticities, the default transfer function, the
10 default Y'CbCr encoding and the default quantization method. The second
12 :c:type:`v4l2_xfer_func`) to specify non-standard
15 non-standard Y'CbCr encodings and the fourth is the quantization
17 specify non-standard quantization methods. Most of the time only the
22 .. _hsv-colorspace:
24 On :ref:`HSV formats <hsv-formats>` the *Hue* is defined as the angle on
26 degrees, i.e. 0-360. When we map this angle value into 8 bits, there are
27 two basic ways to do it: Divide the angular value by 2 (0-179), or use the
[all …]
/Documentation/devicetree/bindings/mmc/
Dti-omap-hsmmc.txt10 --------------------
11 - compatible:
12 Should be "ti,omap2-hsmmc", for OMAP2 controllers
13 Should be "ti,omap3-hsmmc", for OMAP3 controllers
14 Should be "ti,omap3-pre-es3-hsmmc" for OMAP3 controllers pre ES3.0
15 Should be "ti,omap4-hsmmc", for OMAP4 controllers
16 Should be "ti,am33xx-hsmmc", for AM335x controllers
17 Should be "ti,k2g-hsmmc", "ti,omap4-hsmmc" for 66AK2G controllers.
20 ---------------------------------
22 - ti,hwmods: Must be "mmc<n>", n is controller instance starting 1.
[all …]
Dsdhci-st.txt1 * STMicroelectronics sdhci-st MMC/SD controller
5 used by the sdhci-st driver.
8 - compatible: Must be "st,sdhci" and it can be compatible to "st,sdhci-stih407"
13 - clock-names: Should be "mmc" and "icn". (NB: The latter is not compulsory)
14 See: Documentation/devicetree/bindings/resource-names.txt
15 - clocks: Phandle to the clock.
16 See: Documentation/devicetree/bindings/clock/clock-bindings.txt
18 - interrupts: One mmc interrupt should be described here.
19 - interrupt-names: Should be "mmcirq".
21 - pinctrl-names: A pinctrl state names "default" must be defined.
[all …]
/Documentation/hwmon/
Dshtc1.rst41 -----------
48 address 0x70. See Documentation/i2c/instantiating-devices.rst for methods to
54 non-blocking mode. Blocking mode will guarantee the fastest result but
55 the I2C bus will be busy during that time. By default, non-blocking mode
56 is used. Make sure clock-stretching works properly on your device if you
58 2. high or low accuracy. High accuracy is used by default and using it is
61 sysfs-Interface
62 ---------------
65 - temperature input
67 - humidity input
/Documentation/devicetree/bindings/nvmem/
Dst,stm32-romem.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/nvmem/st,stm32-romem.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: STMicroelectronics STM32 Factory-programmed data
10 This represents STM32 Factory-programmed read only non-volatile area: locked
11 flash, OTP, read-only HW regs... This contains various information such as:
16 - Fabrice Gasnier <fabrice.gasnier@foss.st.com>
19 - $ref: nvmem.yaml#
20 - $ref: nvmem-deprecated-cells.yaml#
[all …]
/Documentation/ABI/testing/
Ddev-kmsg18 If no prefix is given, the priority number is the default kernel
30 first message in the buffer; there is no kernel-internal
36 used -EAGAIN returned.
42 the device is kept open, the next read() will return -EPIPE,
67 Because of the non-standard behavior also the error values are
68 non-standard. -ESPIPE is returned for non-zero offset. -EINVAL
85 all non-printable characters and '\' itself in the log message
86 are escaped by "\x00" C-style hex encoding.
95 7,160,424069,-;pci_root PNP0A03:00: host bridge window [io 0x0000-0x0cf7] (ignored)
98 6,339,5140900,-;NET: Registered protocol family 10
[all …]
Dsysfs-driver-st9 with the #define DEBUG set to a non-zero value (this is the
10 default). If DEBUG is set to 0 then this file will not
/Documentation/admin-guide/
Dvga-softcursor.rst9 tricks: you can make your cursor look like a non-blinking red block,
17 they will default to zeroes.
22 0=default
40 on highlight (or sometimes blinking -- it depends on the configuration
50 --------
54 echo -e '\033[?2c'
58 echo -e '\033[?6c'
60 To get red non-blinking block, use::
62 echo -e '\033[?17;0;64c'
Dcgroup-v2.rst1 .. _cgroup-v2:
11 conventions of cgroup v2. It describes all userland-visible aspects
14 v1 is available under :ref:`Documentation/admin-guide/cgroup-v1/index.rst <cgroup-v1>`.
19 1-1. Terminology
20 1-2. What is cgroup?
22 2-1. Mounting
23 2-2. Organizing Processes and Threads
24 2-2-1. Processes
25 2-2-2. Threads
26 2-3. [Un]populated Notification
[all …]
/Documentation/userspace-api/
Dmfd_noexec.rst1 .. SPDX-License-Identifier: GPL-2.0
4 Introduction of non-executable mfd
17 However, in a secure-by-default system, such as ChromeOS, (where all
31 - Let memfd_create() set X bit at creation time.
32 - Let memfd be sealed for modifying X bit when NX is set.
33 - Add a new pid namespace sysctl: vm.memfd_noexec to help applications in
34 migrating and enforcing non-executable MFD.
60 - 0: MEMFD_NOEXEC_SCOPE_EXEC
64 - 1: MEMFD_NOEXEC_SCOPE_NOEXEC_SEAL
68 - 2: MEMFD_NOEXEC_SCOPE_NOEXEC_ENFORCED
[all …]
/Documentation/arch/arm64/
Dtagged-address-abi.rst14 ---------------
16 On AArch64 the ``TCR_EL1.TBI0`` bit is set by default, allowing
17 userspace (EL0) to perform memory accesses through 64-bit pointers with
18 a non-zero top byte. This document describes the relaxation of the
23 -----------------------------
27 non-zero top-byte that references an address in the user process address
30 - ``mmap()`` syscall where either:
32 - flags have the ``MAP_ANONYMOUS`` bit set or
33 - the file descriptor refers to a regular file (including those
36 - ``brk()`` syscall (i.e. the heap area between the initial location of
[all …]
/Documentation/networking/
Dipvs-sysctl.rst1 .. SPDX-License-Identifier: GPL-2.0
4 IPvs-sysctl
10 am_droprate - INTEGER
11 default 10
16 amemthresh - INTEGER
17 default 1024
25 backup_only - BOOLEAN
26 - 0 - disabled (default)
27 - not 0 - enabled
32 conn_reuse_mode - INTEGER
[all …]
Dip-sysctl.rst1 .. SPDX-License-Identifier: GPL-2.0
10 ip_forward - BOOLEAN
11 - 0 - disabled (default)
12 - not 0 - enabled
17 parameters to their default state (RFC1122 for hosts, RFC1812
20 ip_default_ttl - INTEGER
21 Default value of TTL field (Time To Live) for outgoing (but not
23 Default: 64 (as recommended by RFC1700)
25 ip_no_pmtu_disc - INTEGER
27 fragmentation-required ICMP is received, the PMTU to this
[all …]
/Documentation/scsi/
Dst.rst1 .. SPDX-License-Identifier: GPL-2.0
23 flexible method and applicable to single-user workstations. However,
27 2. The system manager (root) can define default values for some tape
32 drive performs auto-detection of the tape format well (like some
33 QIC-drives). The result is that any tape can be read, writing can be
34 continued using existing format, and the default format is used if
37 does not perform auto-detection well enough and there is a single
40 or not :-).
46 3. By default, up to four modes can be defined and selected using the minor
57 between formats in multi-tape operations (the explicitly overridden
[all …]
/Documentation/leds/
Dledtrig-transient.rst25 triggers it supports and a default trigger. During registration, activation
26 routine for the default trigger gets called. During registration of an led
46 as its default trigger, trigger activation routine will get called. During
56 non-transient state. When driver gets suspended, irrespective of the transient
69 transient trigger is activated these properties are set to default values.
71 - duration allows setting timer value in msecs. The initial value is 0.
72 - activate allows activating and deactivating the timer specified by
73 duration as needed. The initial and default value is 0. This will allow
75 - state allows user to specify a transient state to be held for the specified
79 - one shot timer activate mechanism.
[all …]
/Documentation/core-api/
Dswiotlb.rst1 .. SPDX-License-Identifier: GPL-2.0
19 These APIs use the device DMA attributes and kernel-wide settings to determine
30 ---------------
33 only provide 32-bit DMA addresses. By allocating bounce buffer memory below
38 encrypted by default, and the memory is not accessible by the host hypervisor
40 directed to guest memory that is unencrypted. CoCo VMs set a kernel-wide option
54 IOMMU access control is per-granule, the untrusted device can gain access to
60 ------------------
85 ------------------------------
88 block. Hence the default memory pool for swiotlb allocations must be
[all …]
/Documentation/arch/riscv/
Dvector.rst1 .. SPDX-License-Identifier: GPL-2.0
4 Vector Extension Support for RISC-V Linux
8 order to support the use of the RISC-V Vector Extension.
11 ---------------------
19 are not portable to non-Linux, nor non-RISC-V environments, so it is discourage
27 argument consists of two 2-bit enablement statuses and a bit for inheritance
30 Enablement status is a tri-state value each occupying 2-bit of space in
33 * :c:macro:`PR_RISCV_V_VSTATE_CTRL_DEFAULT`: Use the system-wide default
34 enablement status on execve(). The system-wide default setting can be
43 arg: The control argument is a 5-bit value consisting of 3 parts, and
[all …]
/Documentation/userspace-api/media/dvb/
Dca-fopen.rst1 .. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
11 ----
16 --------
21 ---------
27 A bit-wise OR of the following flags:
31 .. flat-table::
32 :header-rows: 0
33 :stub-columns: 0
36 - - ``O_RDONLY``
37 - read-only access
[all …]
/Documentation/fb/
Dmatroxfb.rst16 * Most important: boot logo :-)
34 box) and matroxfb (for graphics mode). You should not compile-in vesafb
35 unless you have primary display on non-Matrox VBE2.0 device (see
43 -------------
58 -------------------------
73 ----------
86 Non-listed number can be achieved by more complicated command-line, for
93 XF{68,86}_FBDev should work just fine, but it is non-accelerated. On non-intel
97 Running another (accelerated) X-Server like XF86_SVGA works too. But (at least)
100 driver is possible, but you must not enable DRI - if you do, resolution and
[all …]
Daty128fb.rst15 * Most important: boot logo :-)
34 box) and aty128fb (for graphics mode). You should not compile-in vesafb
35 unless you have primary display on non-Rage128 VBE2.0 device (see
42 XF68_FBDev should generally work fine, but it is non-accelerated. As of
57 noaccel do not use acceleration engine. It is default.
62 explanation. Default is 640x480x8bpp.
72 - This driver is still experimental and is not finished. Too many
/Documentation/devicetree/bindings/usb/
Dusb251xb.yaml1 # SPDX-License-Identifier: GPL-2.0
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Microchip USB 2.0 Hi-Speed Hub Controller
10 - Richard Leitner <richard.leitner@skidata.com>
15 - microchip,usb2422
16 - microchip,usb2512b
17 - microchip,usb2512bi
18 - microchip,usb2513b
19 - microchip,usb2513bi
[all …]
/Documentation/devicetree/bindings/net/wireless/
Dti,wl1251.txt7 - compatible : Should be "ti,wl1251"
8 - reg : Chip select address of device
9 - spi-max-frequency : Maximum SPI clocking speed of device in Hz
10 - interrupts : Should contain interrupt line
11 - vio-supply : phandle to regulator providing VIO
14 - ti,wl1251-has-eeprom : boolean, the wl1251 has an eeprom connected, which
16 - ti,power-gpio : GPIO connected to chip's PMEN pin if operated in
18 - Please consult Documentation/devicetree/bindings/spi/spi-bus.txt
28 spi-max-frequency = <48000000>;
29 spi-cpol;
[all …]

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