Searched +full:low +full:- +full:pass (Results 1 – 25 of 124) sorted by relevance
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| /Documentation/devicetree/bindings/iio/filter/ |
| D | adi,admv8818.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: ADMV8818 Digitally Tunable, High-Pass and Low-Pass Filter
10 - Antoniu Miclaus <antoniu.miclaus@analog.com>
15 The device features four independently controlled high-pass
16 filters (HPFs) and four independently controlled low-pass filters
24 - adi,admv8818
29 spi-max-frequency:
37 clock-names:
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| /Documentation/ABI/testing/ |
| D | sysfs-bus-iio-filter-admv8818 | 3 Contact: linux-iio@vger.kernel.org
8 - auto -> Adjust bandpass filter to track changes in input clock rate.
9 - manual -> disable/unregister the clock rate notifier / input clock tracking.
10 - bypass -> bypass low pass filter, high pass filter and disable/unregister
15 Contact: linux-iio@vger.kernel.org
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| /Documentation/spi/ |
| D | spidev.rst | 5 SPI devices have a limited userspace API, supporting basic half-duplex
19 * Prototyping in an environment that's not crash-prone; stray pointers
38 - struct spi_device_id spidev_spi_ids[]: list of devices that can be
42 - struct of_device_id spidev_dt_ids[]: list of devices that can be
46 - struct acpi_device_id spidev_acpi_ids[]: list of devices that can
52 post a patch for spidev to the linux-spi@vger.kernel.org mailing list.
101 Since this is a standard Linux device driver -- even though it just happens
102 to expose a low level API to userspace -- it can be associated with any number
112 Standard read() and write() operations are obviously only half-duplex, and
113 the chipselect is deactivated between those operations. Full-duplex access,
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| /Documentation/driver-api/ |
| D | ptp.rst | 1 .. SPDX-License-Identifier: GPL-2.0
18 - Set time
19 - Get time
20 - Shift the clock by a given offset atomically
21 - Adjust clock frequency
24 - Time stamp external events
25 - Period output signals configurable from user space
26 - Low Pass Filter (LPF) access from user space
27 - Synchronization of the Linux system time via the PPS subsystem
65 ancillary feature, then the driver should just return -EOPNOTSUPP
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| /Documentation/arch/powerpc/ |
| D | kaslr-booke32.rst | 1 .. SPDX-License-Identifier: GPL-2.0
14 map or copy kernel to a proper place and relocate. Freescale Book-E
22 pass entropy via the /chosen/kaslr-seed node in device tree.
24 We will use the first 512M of the low memory to randomize the kernel
31 |--> 64M <--|
33 +---------------+ +----------------+---------------+
35 +---------------+ +----------------+---------------+
37 |-----> offset <-----|
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| /Documentation/iio/ |
| D | bno055.rst | 1 .. SPDX-License-Identifier: GPL-2.0
15 provided, but some sensor settings (e.g. low pass filtering and range)
44 bno055-caldata-0e7c26a33541515120204a35342b04ff.dat
45 bno055-caldata.dat
47 In non-fusion mode the IIO 'offset' attributes provide access to the
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| D | adxl380.rst | 1 .. SPDX-License-Identifier: GPL-2.0
15 The ADXL380/ADXL382 is a low noise density, low power, 3-axis accelerometer with
37 +---------------------------------------------------+----------------------------------------------…
38 | 3-Axis Accelerometer related device files | Description …
39 +---------------------------------------------------+----------------------------------------------…
41 +---------------------------------------------------+----------------------------------------------…
42 | in_accel_filter_high_pass_3db_frequency | Low pass filter bandwidth. …
43 +---------------------------------------------------+----------------------------------------------…
44 | in_accel_filter_high_pass_3db_frequency_available | Available low pass filter bandwidth configura…
45 +---------------------------------------------------+----------------------------------------------…
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| /Documentation/arch/arm/ |
| D | booting.rst | 9 The following documentation is relevant to 2.4.18-rmk6 and beyond.
28 ---------------------------
44 -----------------------------
56 As an alternative, the boot loader can pass the relevant 'console='
60 Documentation/admin-guide/kernel-parameters.rst.
64 --------------------------
69 MANDATORY except for DT-only platforms
75 value to the kernel. (see linux/arch/arm/tools/mach-types). This
78 For DT-only platforms, the machine type will be determined by device
83 ------------------
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| /Documentation/devicetree/bindings/iio/adc/ |
| D | adc.yaml | 1 # SPDX-License-Identifier: GPL-2.0
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Jonathan Cameron <jic23@kernel.org>
17 pattern: "^channel(@[0-9a-f]+)?$"
31 diff-channels:
32 $ref: /schemas/types.yaml#/definitions/uint32-array
41 single-channel:
44 When devices combine single-ended and differential channels, allow the
46 differential channels). If this and diff-channels are not present reg
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| /Documentation/devicetree/bindings/soc/ti/ |
| D | wkup-m3-ipc.yaml | 1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/soc/ti/wkup-m3-ipc.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Dave Gerlach <d-gerlach@ti.com>
11 - Drew Fustini <dfustini@baylibre.com>
14 The TI AM33xx and AM43xx family of devices use a small Cortex M3 co-processor
15 (commonly referred to as Wakeup M3 or CM3) to help with various low power tasks
17 C-states for CPU Idle. Once the wkup_m3_ipc driver uses the wkup_m3_rproc driver
29 On some boards like the AM335x EVM-SK and the AM437x GP EVM, a GPIO pin is
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| /Documentation/hwmon/ |
| D | ltc4282.rst | 1 .. SPDX-License-Identifier: GPL-2.0-only
12 Addresses scanned: - I2C 0x40 - 0x5A (7-bit)
13 Addresses scanned: - I2C 0x80 - 0xB4 with a step of 2 (8-bit)
17 https://www.analog.com/media/en/technical-documentation/data-sheets/ltc4282.pdf
25 from a live backplane. Using one or more external N-channel pass transistors,
31 parallel MOSFETs or support a 2-stage start-up that first charges the load
32 capacitance followed by enabling a low on-resistance path to the load. The
35 and power supplies must safely operate. Non-volatile configuration allows for
41 The following attributes are supported. Limits are read-write and all the other
42 attributes are read-only. Note that in0 and in1 are mutually exclusive. Enabling
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| /Documentation/arch/arm/sa1100/ |
| D | assabet.rst | 2 The Intel Assabet (SA-1110 evaluation) board
13 -------------------
25 -----------------------
39 John Dorsey has produced add-on patches to add support for Assabet and
55 - ftp://ftp.netwinder.org/users/n/nico/
56 - ftp://ftp.arm.linux.org.uk/pub/linux/arm/people/nico/
57 - ftp://ftp.handhelds.org/pub/linux/arm/sa-1100-patches/
59 Look for redboot-assabet*.tgz. Some installation infos are provided in
60 redboot-assabet*.txt.
64 -----------------------------
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| /Documentation/fb/ |
| D | ep93xx-fb.rst | 24 Note that the pixel clock value is in pico-seconds. You can use the
59 default the blank signal is active low.
62 default the horizontal sync is active low.
92 The setup and teardown devices pass the platform_device structure as
98 struct ep93xxfb_mach_info *mach_info = pdev->dev.platform_data;
110 video=XRESxYRES[-BPP][@REFRESH]
112 If the EP93xx video driver is built-in then the video mode is set on
115 video=ep93xx-fb:800x600-16@60
120 modprobe ep93xx-fb video=320x240
127 the VIDSCRNPAGE (framebuffer physical offset) to be tied low. There is
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| D | pxafb.rst | 10 modprobe pxafb options=vmem:2M,mode:640x480-8,passive
14 video=pxafb:vmem:2M,mode:640x480-8,passive
21 mode:XRESxYRES[-BPP]
67 Horizontal and vertical sync. 0 => active low, 1 => active
76 Output Enable Polarity. 0 => active low, 1 => active high
87 PXA27x and later processors support overlay1 and overlay2 on-top of the
88 base framebuffer (although under-neath the base is also possible). They
89 support palette and no-palette RGB formats, as well as YUV formats (only
96 1. overlay can start at a 32-bit word aligned position within the base
98 is encoded into var->nonstd (no, var->xoffset and var->yoffset are
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| /Documentation/driver-api/thermal/ |
| D | power_allocator.rst | 6 -----------
20 --------------
23 Proportional-Integral-Derivative controller (PID controller) with
29 - e = desired_temperature - current_temperature
30 - err_integral is the sum of previous errors
31 - diff_err = e - previous_error
39 | +----------+ +---+
40 | +----->| diff_err |-->| X |------+
41 | | +----------+ +---+ |
47 +---+ | +-------+ +---+ +---+ +---+ +----------+
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| /Documentation/driver-api/media/ |
| D | cec-core.rst | 1 .. SPDX-License-Identifier: GPL-2.0
15 ----------------
33 ---------------------
46 To create an adapter you need to pass the following information:
53 will be stored in adap->priv and can be used by the adapter ops.
95 Implementing the Low-Level CEC Adapter
96 --------------------------------------
98 The following low-level adapter operations have to be implemented in
103 .. code-block:: none
107 /* Low-level callbacks */
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| D | rc-core.rst | 1 .. SPDX-License-Identifier: GPL-2.0
4 -------------------------
23 infrared-based remote controllers, there's no key release event. Instead,
48 At receiver, a simple low-pass filter can be used to convert the received
86 .. kernel-doc:: include/media/rc-core.h
88 .. kernel-doc:: include/media/rc-map.h
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| /Documentation/core-api/ |
| D | debugging-via-ohci1394.rst | 2 Using physical DMA provided by OHCI-1394 FireWire controllers for debugging
6 ------------
9 to the OHCI-1394 specification which defines the controller to be a PCI
12 PCI-Bus master DMA after applying filters defined by the OHCI-1394 driver.
15 ask the OHCI-1394 controller to perform read and write requests on
25 With most FireWire controllers, memory access is limited to the low 4 GB
28 hardware such as x86, x86-64 and PowerPC.
34 Together with a early initialization of the OHCI-1394 controller for debugging,
41 -------
43 The firewire-ohci driver in drivers/firewire uses filtered physical
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| /Documentation/userspace-api/media/cec/ |
| D | cec-ioc-receive.rst | 1 .. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
14 CEC_RECEIVE, CEC_TRANSMIT - Receive or transmit a CEC message
40 ``timeout`` field of struct :c:type:`cec_msg` and pass it to
42 If the file descriptor is in non-blocking mode and there are no received
43 messages pending, then it will return -1 and set errno to the ``EAGAIN``
45 is non-zero and no message arrived within ``timeout`` milliseconds, then
46 it will return -1 and set errno to the ``ETIMEDOUT`` error code.
51 be 0, ``tx_status`` will be 0 and ``rx_status`` will be non-zero).
52 2. the transmit result of an earlier non-blocking transmit (the ``sequence``
53 field will be non-zero, ``tx_status`` will be non-zero and ``rx_status``
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| /Documentation/admin-guide/media/ |
| D | cec.rst | 1 .. SPDX-License-Identifier: GPL-2.0
12 - Exynos4
13 - Exynos5
14 - STIH4xx HDMI CEC
15 - V4L2 adv7511 (same HW, but a different driver from the drm adv7511)
16 - stm32
17 - Allwinner A10 (sun4i)
18 - Raspberry Pi
19 - dw-hdmi (Synopsis IP)
20 - amlogic (meson ao-cec and ao-cec-g12a)
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| /Documentation/sound/designs/ |
| D | midi-2.0.rst | 12 - Support of Universal MIDI Packet (UMP)
13 - Support of MIDI 2.0 protocol messages
14 - Transparent conversions between UMP and legacy MIDI 1.0 byte stream
15 - MIDI-CI for property and profile configurations
26 MIDI-CI is a high-level protocol that can talk with the MIDI device
31 the encoding/decoding of MIDI protocols on UMP, while MIDI-CI is
32 supported in user-space over the standard SysEx.
65 When a device supports MIDI 2.0, the USB-audio driver probes and uses
69 `midi2_enable=0` option to snd-usb-audio driver module, too.
77 unexpected UMP command; in such a case, pass `midi2_ump_probe=0`
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| D | timestamping.rst | 7 - Trigger_tstamp is the system time snapshot taken when the .trigger
11 estimate with a delay. In the latter two cases, the low-level driver
17 - tstamp is the current system timestamp updated during the last
19 The difference (tstamp - trigger_tstamp) defines the elapsed time.
29 - ``avail`` reports how much can be written in the ring buffer
30 - ``delay`` reports the time it will take to hear a new sample after all
43 ascii-art, this could be represented as follows (for the playback
47 --------------------------------------------------------------> time
53 |< codec delay >|<--hw delay-->|<queued samples>|<---avail->|
54 |<----------------- delay---------------------->| |
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| /Documentation/devicetree/bindings/pinctrl/ |
| D | qcom,pmic-mpp.yaml | 1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/pinctrl/qcom,pmic-mpp.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Qualcomm PMIC Multi-Purpose Pin (MPP) block
10 - Bjorn Andersson <bjorn.andersson@linaro.org>
19 - items:
20 - enum:
21 - qcom,pm8019-mpp
22 - qcom,pm8226-mpp
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| /Documentation/usb/ |
| D | ehci.rst | 5 27-Dec-2002
8 USB 2.0-capable host controller hardware. The USB 2.0 standard is
11 - "High Speed" 480 Mbit/sec (60 MByte/sec)
12 - "Full Speed" 12 Mbit/sec (1.5 MByte/sec)
13 - "Low Speed" 1.5 Mbit/sec
15 USB 1.1 only addressed full speed and low speed. High speed devices
23 (TT) in the hub, which turns low or full speed transactions into
31 While usb-storage devices have been available since mid-2001 (working
34 appear to be on hold until more systems come with USB 2.0 built-in.
39 other changes to the Linux-USB core APIs, including the hub driver,
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| /Documentation/devicetree/bindings/sound/ |
| D | st,sta350.txt | 7 - compatible: "st,sta350"
8 - reg: the I2C address of the device for I2C
9 - reset-gpios: a GPIO spec for the reset pin. If specified, it will be
12 - power-down-gpios: a GPIO spec for the power down pin. If specified,
16 - vdd-dig-supply: regulator spec, providing 3.3V
17 - vdd-pll-supply: regulator spec, providing 3.3V
18 - vcc-supply: regulator spec, providing 5V - 26V
22 - st,output-conf: number, Selects the output configuration:
23 0: 2-channel (full-bridge) power, 2-channel data-out
24 1: 2 (half-bridge). 1 (full-bridge) on-board power
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