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/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 …]
Datmel-usb.txt6 - compatible: Should be "atmel,at91rm9200-ohci" for USB controllers
8 - reg: Address and length of the register set for the device
9 - interrupts: Should contain ohci interrupt
10 - clocks: Should reference the peripheral, host and system clocks
11 - clock-names: Should contain three strings
15 - num-ports: Number of ports.
16 - atmel,vbus-gpio: If present, specifies a gpio that needs to be
17 activated for the bus to be powered.
18 - atmel,oc-gpio: If present, specifies a gpio that needs to be
22 compatible = "atmel,at91rm9200-ohci", "usb-ohci";
[all …]
Dsamsung,exynos-usb2.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/usb/samsung,exynos-usb2.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Krzysztof Kozlowski <krzk@kernel.org>
15 - samsung,exynos4210-ehci
16 - samsung,exynos4210-ohci
21 clock-names:
23 - const: usbhost
32 phy-names:
[all …]
/Documentation/userspace-api/media/dvb/
Dfe-diseqc-reset-overload.rst1 .. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
13 FE_DISEQC_RESET_OVERLOAD - Restores the power to the antenna subsystem, if it was powered off due -…
31 If the bus has been automatically powered off due to power overload,
32 this ioctl call restores the power to the bus. The call requires
34 is manually powered off. Not all Digital TV adapters support this ioctl.
41 On error -1 is returned, and the ``errno`` variable is set
45 :ref:`Generic Error Codes <gen-errors>` chapter.
/Documentation/firmware-guide/acpi/
Dnon-d0-probe.rst1 .. SPDX-License-Identifier: GPL-2.0
10 In some cases it may be preferred to leave certain devices powered off for the
19 probe. The support for _DSC requires support from the kernel bus type if the
20 bus driver normally sets the device in D0 state for probe.
22 The downside of using _DSC is that as the device is not powered on, even if
28 ---
33 the device will not be powered on (put in D0 state) for probe.
36 --------
41 .. code-block:: text
44 0 D0 Device fully powered on
[all …]
/Documentation/w1/slaves/
Dw1_therm.rst16 -----------
42 A bulk read of all devices on the bus could be done writing ``trigger``
44 send the convert command to all devices on the bus, and if parasite
45 powered devices are detected on the bus (and strong pullup is enabled
47 time required by parasited powered device on the line. Reading
49 -1 if at least one sensor still in conversion, 1 if conversion is complete
72 the sensor. Resolution is reset when the sensor gets power-cycled.
81 Some non-genuine DS18B20 chips are fixed in 12-bit mode only, so the actual
86 The write-only sysfs entry ``eeprom_cmd`` is an alternative for EEPROM operations.
91 ``0`` if the device is parasite powered, ``1`` if the device is externally powered.
[all …]
Dw1_ds28e17.rst7 * Maxim DS28E17 1-Wire-to-I2C Master Bridge
19 -----------
20 The DS28E17 is a Onewire slave device which acts as an I2C bus master.
22 This driver creates a new I2C bus for any DS28E17 device detected. I2C buses
25 connected to a "native" I2C bus master.
30 SUBSYSTEM=="i2c-dev", KERNEL=="i2c-[0-9]*", ATTRS{name}=="w1-19-*", \
31 SYMLINK+="i2c-$attr{name}"
33 may be used to create stable /dev/i2c- entries based on the unique id of the
41 it is connected. The power-on default of the DS28E17 is 400kBaud, but
42 chips may come and go on the Onewire bus without being de-powered and
[all …]
/Documentation/ABI/testing/
Dsysfs-bus-usb-devices-usbsevseg1 What: /sys/bus/usb/.../powered
5 Description: Controls whether the device's display will powered.
6 A value of 0 is off and a non-zero value is on.
8 What: /sys/bus/usb/.../mode_msb
9 What: /sys/bus/usb/.../mode_lsb
22 What: /sys/bus/usb/.../textmode
28 hex: each character is between 0-15
29 ascii: each character is between '0'-'9' and 'A'-'F'.
31 What: /sys/bus/usb/.../text
37 What: /sys/bus/usb/.../decimals
Dsysfs-bus-platform-onboard-usb-dev1 What: /sys/bus/platform/devices/<dev>/always_powered_in_suspend
5 linux-usb@vger.kernel.org
7 (RW) Controls whether the USB hub remains always powered
9 available for non-hub devices.
Dsysfs-driver-w1_therm1 What: /sys/bus/w1/devices/.../alarms
7 (typical -55 degC to 125 degC), if not values will be trimmed
11 master level, refer to Documentation/w1/w1-generic.rst for
17 What: /sys/bus/w1/devices/.../eeprom_cmd
33 What: /sys/bus/w1/devices/.../ext_power
39 * '0': device parasite powered
40 * '1': device externally powered
41 * '-xx': xx is kernel error when reading power status
47 What: /sys/bus/w1/devices/.../resolution
55 values after power-on. Read or write are :
[all …]
Dsysfs-driver-bd9571mwv-regulator1 What: /sys/bus/i2c/devices/.../bd9571mwv-regulator.*.auto/backup_mode
6 if DDR power rails will be kept powered during system suspend.
18 wake-up switch,
Dsysfs-bus-coresight-devices-cti1 What: /sys/bus/coresight/devices/<cti-name>/enable
7 What: /sys/bus/coresight/devices/<cti-name>/powered
11 Description: (Read) Indicate if the CTI hardware is powered.
13 What: /sys/bus/coresight/devices/<cti-name>/ctmid
19 What: /sys/bus/coresight/devices/<cti-name>/nr_trigger_cons
25 What: /sys/bus/coresight/devices/<cti-name>/triggers<N>/name
31 What: /sys/bus/coresight/devices/<cti-name>/triggers<N>/in_signals
37 What: /sys/bus/coresight/devices/<cti-name>/triggers<N>/in_types
44 What: /sys/bus/coresight/devices/<cti-name>/triggers<N>/out_signals
50 What: /sys/bus/coresight/devices/<cti-name>/triggers<N>/out_types
[all …]
Dsysfs-bus-i2c-devices-turris-omnia-mcu1 What: /sys/bus/i2c/devices/<mcu_device>/board_revision
8 revisions have board information burned in the ATSHA204-A chip).
12 What: /sys/bus/i2c/devices/<mcu_device>/first_mac_address
21 revisions have board information burned in the ATSHA204-A chip).
25 What: /sys/bus/i2c/devices/<mcu_device>/front_button_mode
35 - ``mcu`` makes the button press event be handled by the MCU to
37 - ``cpu`` makes the button press event be handled by the CPU.
41 What: /sys/bus/i2c/devices/<mcu_device>/front_button_poweron
47 low power mode. The router can be powered on by pressing the
57 What: /sys/bus/i2c/devices/<mcu_device>/fw_features
[all …]
/Documentation/devicetree/bindings/sound/
Dti,tlv320aic3x.yaml1 # SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
4 ---
6 $schema: http://devicetree.org/meta-schemas/core.yaml#
11 TLV320AIC3x are a series of low-power stereo audio codecs with stereo
13 single-ended or fully differential configurations.
15 The serial control bus supports SPI or I2C protocols, while the serial audio
16 data bus is programmable for I2S, left/right-justified, DSP, or TDM modes.
44 - Jai Luthra <j-luthra@ti.com>
49 - ti,tlv320aic3x
50 - ti,tlv320aic33
[all …]
/Documentation/devicetree/bindings/bus/
Drenesas,bsc.yaml2 ---
3 $id: http://devicetree.org/schemas/bus/renesas,bsc.yaml#
4 $schema: http://devicetree.org/meta-schemas/core.yaml#
6 title: Renesas Bus State Controller (BSC)
9 - Geert Uytterhoeven <geert+renesas@glider.be>
12 The Renesas Bus State Controller (BSC, sometimes called "LBSC within Bus
13 Bridge", or "External Bus Interface") can be found in several Renesas ARM
14 SoCs. It provides an external bus for connecting multiple external
18 While the BSC is a fairly simple memory-mapped bus, it may be part of a
21 must be powered on, and the functional clock driving the BSC must be
[all …]
/Documentation/mhi/
Dtopology.rst1 .. SPDX-License-Identifier: GPL-2.0
11 --------------
14 such as the external modems and WiFi chipsets. It is also the MHI bus master
17 is taken care by the physical bus such as PCIe. Each controller driver exposes
22 * Turns on the physical bus and establishes the link to the device
24 * Allocates struct mhi_controller and registers with the MHI bus framework
30 ----------
33 for bi-directional communication. Once MHI is in powered on state, the MHI
40 /sys/bus/mhi/devices/
43 ----------
[all …]
/Documentation/trace/coresight/
Dcoresight-ect.rst1 .. SPDX-License-Identifier: GPL-2.0
11 --------------------
21 0 C 0----------->: : +======>(other CTI channel IO)
22 0 P 0<-----------: : v
24 0000000 : CTI :<=========>*CTM*<====>: CTI :---+
25 ####### in_trigs : : (id 0-3) ***** ::::::: v
26 # ETM #----------->: : ^ #######
27 # #<-----------: : +---# ETR #
50 The hardware trigger signals can also be connected to non-CoreSight devices
60 ---------------------------
[all …]
Dcoresight-cpu-debug.rst9 ------------
11 Coresight CPU debug module is defined in ARMv8-a architecture reference manual
13 debug module and it is mainly used for two modes: self-hosted debug and
16 explore debugging method which rely on self-hosted debug mode, this document
19 The debug module provides sample-based profiling extension, which can be used
21 every CPU has one dedicated debug module to be connected. Based on self-hosted
29 --------------
31 - During driver registration, it uses EDDEVID and EDDEVID1 - two device ID
32 registers to decide if sample-based profiling is implemented or not. On some
36 - At the time this documentation was written, the debug driver mainly relies on
[all …]
/Documentation/usb/
Dmisc_usbsevseg.rst2 USB 7-Segment Numeric Display
8 ------------------
16 ------------
28 hex expects a value between 0-15 per character,
29 ascii expects a value between '0'-'9' and 'A'-'F'.
33 ----------------
35 echo 1 > /sys/bus/usb/.../powered
37 echo $mode_msb > /sys/bus/usb/.../mode_msb
38 echo $mode_lsb > /sys/bus/usb/.../mode_lsb
40 echo $textmode > /sys/bus/usb/.../textmode
[all …]
/Documentation/devicetree/bindings/net/bluetooth/
Dmediatek,bluetooth.txt13 - compatible: Must be
14 "mediatek,mt7663u-bluetooth": for MT7663U device
15 "mediatek,mt7668u-bluetooth": for MT7668U device
16 - vcc-supply: Main voltage regulator
21 - pinctrl-names: Should be "default", "runtime"
22 - pinctrl-0: Should contain UART RXD low when the device is powered up to
24 - pinctrl-1: Should contain UART mode pin ctrl
30 - boot-gpios: GPIO same to the pin as UART RXD and used to keep LOW when
31 the device is powered up to enter proper bootstrap mode when
32 - pinctrl-names: Should be "default"
[all …]
/Documentation/ABI/obsolete/
Dsysfs-driver-hid-roccat-kovaplus1 What: /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<p…
4 Description: The integer value of this attribute ranges from 1-4.
11 What: /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<p…
14 Description: The integer value of this attribute ranges from 0-4.
18 The profile that's active when powered down is the same that's
19 active when the mouse is powered on.
22 What: /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<p…
25 Description: The integer value of this attribute ranges from 1-10.
32 What: /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<p…
35 Description: The integer value of this attribute ranges from 1-10.
[all …]
Dsysfs-driver-hid-roccat-koneplus1 What: /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<p…
4 Description: The integer value of this attribute ranges from 0-4.
7 profile that's active when the mouse is powered on next time.
12 What: /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<p…
15 Description: The integer value of this attribute ranges from 0-4.
18 profile that's active when the mouse is powered on next time.
24 What: /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<p…
36 What: /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<p…
44 What: /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<p…
55 What: /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<p…
[all …]
Dsysfs-driver-hid-roccat-savu1 What: /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<p…
17 What: /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<p…
25 What: /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<p…
40 What: /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<p…
48 What: /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<p…
59 What: /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<p…
65 that's active when the mouse is powered on next time.
71 What: /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<p…
74 Description: The mouse has a Avago ADNS-3090 sensor.
/Documentation/arch/s390/
Dpci.rst1 .. SPDX-License-Identifier: GPL-2.0
8 - Pierre Morel
17 -----------------------
28 ---------------
36 - /sys/kernel/debug/s390dbf/pci_msg/sprintf
50 * /sys/bus/pci/slots/XXXXXXXX
56 - /sys/bus/pci/slots/XXXXXXXX/power
59 powered off until all virtual functions are removed with:
60 echo 0 > /sys/bus/pci/devices/XXXX:XX:XX.X/sriov_numvf
62 * /sys/bus/pci/devices/XXXX:XX:XX.X/
[all …]
/Documentation/devicetree/bindings/rtc/
Disil,isl12057.txt8 ("wakeup-source") to handle the specific use-case found
9 on at least three in-tree users of the chip (NETGEAR ReadyNAS 102, 104
10 and 2120 ARM-based NAS); On those devices, the IRQ#2 pin of the chip
12 to the SoC but to a PMIC. It allows the device to be powered up when
20 - "compatible": must be "isil,isl12057"
21 - "reg": I2C bus address of the device
25 - "wakeup-source": mark the chip as a wakeup source, independently of
38 that the pinctrl-related properties below are given for completeness and
41 "interrupt-parent" and "interrupts" are usually sufficient):
60 pinctrl-0 = <&rtc_alarm_pin>;
[all …]

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