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/Documentation/ABI/testing/
Dconfigfs-spear-pcie-gadget7 Interface is used to configure selected dual mode PCIe controller
10 This interfaces can be used to show spear's PCIe device capability.
18 link ... used to enable ltssm and read its status.
19 int_type ...used to configure and read type of supported
21 no_of_msi ... used to configure number of MSI vector needed and
25 vendor_id ... used to write and read vendor id (hex)
26 device_id ... used to write and read device id (hex)
27 bar0_size ... used to write and read bar0_size
28 bar0_address ... used to write and read bar0 mapped area in hex.
29 bar0_rw_offset ... used to write and read offset of bar0 where
[all …]
/Documentation/admin-guide/
Dufs.rst12 UFS is a file system widely used in different operating systems.
23 used in FreeBSD, NetBSD, OpenBSD
27 used in FreeBSD 5.x
34 used in SunOS (Solaris)
38 used in SunOS for Intel (Solarisx86)
42 used in HP-UX
46 used in NextStep
50 used for NextStep CDROMs (block_size == 2048)
54 used in OpenStep
/Documentation/input/
Devent-codes.rst10 may be used.
14 used to separate input events into packets of input data changes occurring at
31 type has a set of applicable codes to be used in generating events. See the
36 - Used as markers to separate events. Events may be separated in time or in
41 - Used to describe state changes of keyboards, buttons, or other key-like
46 - Used to describe relative axis value changes, e.g. moving the mouse 5 units
51 - Used to describe absolute axis value changes, e.g. describing the
56 - Used to describe miscellaneous input data that do not fit into other types.
60 - Used to describe binary state input switches.
64 - Used to turn LEDs on devices on and off.
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/Documentation/admin-guide/kdump/
Dvmcoreinfo.rst11 section and used by user-space tools like crash and makedumpfile to
20 The version of the Linux kernel. Used to find the corresponding source
27 The size of a page. It is the smallest unit of data used by the memory
29 aligned on 4096 bytes. Used for computing page addresses.
34 The UTS namespace which is used to isolate two specific elements of the
36 data structure used to store information returned by the uname(2) system
46 in a system, one bit position per node number. Used to keep track of
52 The global page directory pointer of the kernel. Used to translate
59 the kernel start address. Used to convert a virtual address from the
76 Used to map an address to the corresponding struct page.
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/Documentation/arm/
Dsetup.rst6 structure, otherwise known as 'struct param_struct' which is used
9 This structure is used to pass initialisation parameters from the
30 This is now obsolete, and should not be used.
47 or VGA console character size. They should not be used for any other
56 is otherwise unused. (should not be used for other console types, and
57 should not be used for other purposes).
61 based machines. May be used differently by different architectures.
64 Default sound setting on Acorn machines. May be used differently by
68 Number of ADFS/MFM disks. May be used differently by different
72 These are now obsolete, and should not be used.
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/Documentation/driver-api/gpio/
Ddrivers-on-gpio.rst17 - gpio-keys: drivers/input/keyboard/gpio_keys.c is used when your GPIO line
20 - gpio-keys-polled: drivers/input/keyboard/gpio_keys_polled.c is used when your
24 - gpio_mouse: drivers/input/mouse/gpio_mouse.c is used to provide a mouse with
29 - gpio-beeper: drivers/input/misc/gpio-beeper.c is used to provide a beep from
32 - extcon-gpio: drivers/extcon/extcon-gpio.c is used when you need to read an
36 - restart-gpio: drivers/power/reset/gpio-restart.c is used to restart/reboot
40 - poweroff-gpio: drivers/power/reset/gpio-poweroff.c is used to power the
45 - gpio-gate-clock: drivers/clk/clk-gpio.c is used to control a gated clock
48 - i2c-gpio: drivers/i2c/busses/i2c-gpio.c is used to drive an I2C bus
53 - spi_gpio: drivers/spi/spi-gpio.c is used to drive an SPI bus (variable number
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/Documentation/media/uapi/v4l/
Dpixfmt-reserved.rst53 - 8 bit RGB format used by the BTTV driver.
58 - YUV 4:2:0 format used by the IVTV driver,
67 - YUV format used by the gspca cpia1 driver.
72 - JPEG-Light format (Pegasus Lossless JPEG) used in Divio webcams NW
78 - YUYV per line used by the gspca driver.
83 - YYUV per line used by the gspca driver.
88 - YUVY per line used by the gspca driver.
93 - Compressed GBRG Bayer format used by the gspca driver.
98 - Compressed BGGR Bayer format used by the gspca driver.
103 - Compressed BGGR Bayer format used by the gspca driver.
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/Documentation/admin-guide/device-mapper/
Ddm-zoned.rst26 instance is at most 4.5 MB and as little as 5 zones will be used
39 Conventional zones are used for caching as well as for storing internal
44 1) Metadata zones: these are conventional zones used to store metadata.
48 sequential zones used exclusively to store user data. The conventional
49 zones of the device may be used also for buffering user random writes.
56 device being used. This allows reducing the amount of metadata needed to
65 2) Following the super block, a set of blocks is used to describe the
71 zone used to buffer random modification to the data zone.
73 3) A set of blocks used to store bitmaps indicating the validity of
102 be exhausted (all used to map chunks or buffer sequential zones) and
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/Documentation/devicetree/bindings/mfd/
Das3711.txt23 feedback used:
24 - su2-feedback-voltage : voltage feedback is used
25 - su2-feedback-curr1 : CURR1 input used for current feedback
26 - su2-feedback-curr2 : CURR2 input used for current feedback
27 - su2-feedback-curr3 : CURR3 input used for current feedback
31 - su2-fbprot-lx-sd4 : LX_SD4 is used for over-voltage protection
32 - su2-fbprot-gpio2 : GPIO2 is used for over-voltage protection
33 - su2-fbprot-gpio3 : GPIO3 is used for over-voltage protection
34 - su2-fbprot-gpio4 : GPIO4 is used for over-voltage protection
Dmfd.txt25 be used. In the latter case the child devices will be determined by the
32 - #address-cells: Specifies the number of cells used to represent physical base
33 addresses. Must be present if ranges is used.
35 - #size-cells: Specifies the number of cells used to represent the size of an
36 address. Must be present if ranges is used.
/Documentation/devicetree/bindings/soc/fsl/cpm_qe/cpm/
Di2c.txt13 - clock-frequency : Can be used to set the i2c clock frequency. If
14 unspecified, a default frequency of 60kHz is being used.
15 The following two properties are deprecated. They are only used by legacy
17 - linux,i2c-index : Can be used to hard code an i2c bus number. By default,
19 - linux,i2c-class : Can be used to override the i2c class. The class is used
22 being used. The definition of the classes can be found in
/Documentation/media/uapi/dvb/
Dfe_property_parameters.rst16 There are several different Digital TV parameters that can be used by
27 Used internally. A GET/SET operation for it won't change or return
182 Used on cable and satellite delivery systems.
192 Used on cable and satellite delivery systems.
202 Used on satellite delivery systems.
204 The voltage is usually used with non-DiSEqC capable LNBs to switch the
217 Currently not used.
225 Used on DVB-S2.
237 Used on DVB-S2.
283 Used only on ISDB.
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/Documentation/sh/
Dregister-banks.txt16 can still be used to reference the banked registers (as r0_bank ... r7_bank)
20 be used rather effectively as scratch registers by the kernel.
24 - r0_bank, r1_bank (referenced as k0 and k1, used for scratch
26 - r2_bank (used to track the EXPEVT/INTEVT code)
27 - Used by do_IRQ() and friends for doing irq mapping based off
31 interrupt priority level (used by local_irq_enable())
/Documentation/devicetree/bindings/display/panel/
Dronbo,rb070d30.yaml20 description: GPIO used for the power pin
24 description: GPIO used for the reset pin
28 description: GPIO used for the shlr pin (horizontal flip)
32 description: GPIO used for the updn pin (vertical flip)
39 description: Backlight used by the panel
/Documentation/devicetree/bindings/mmc/
Dmmci.txt7 by mmc.txt and the properties used by the mmci driver. Using "st" as
23 - st,sig-dir-dat0 : bus signal direction pin used for DAT[0].
24 - st,sig-dir-dat2 : bus signal direction pin used for DAT[2].
25 - st,sig-dir-dat31 : bus signal direction pin used for DAT[3] and DAT[1].
26 - st,sig-dir-dat74 : bus signal direction pin used for DAT[4] to DAT[7].
27 - st,sig-dir-cmd : cmd signal direction pin used for CMD.
28 - st,sig-pin-fbclk : feedback clock signal pin used.
31 - st,sig-dir : signal direction polarity used for cmd, dat0 dat123.
/Documentation/scsi/
Dst.txt27 continued using existing format, and the default format is used if
32 used only in variable block mode (I don't know if this is sensible
44 the configuration of mode 0 is used to provide a starting point for
53 If more than one mode is used, all modes should contain definitions
92 consecutive files must be written fast. The MTWEOFI operation can be used to
95 operation is MTWEOFI, close() does not write a filemark. This can be used if
104 4. If the open option O_NONBLOCK is used, open succeeds even if the
105 drive is not ready. If O_NONBLOCK is not used, the driver waits for
116 each drive are used.
125 backward compatible with the numbering used when the minor number was
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/Documentation/devicetree/bindings/power/supply/ab8500/
Dfg.txt27 'battery technology type' used.
35 measurement, 'btemp' signal is used when NTC(negative temperature
37 'batctrl' pin is used when NTC resister is internal to battery.
43 indicates: NTC resister is internal to battery, 'batctrl' is used
47 NTC resister is external to battery and 'btemp' signal is used
/Documentation/devicetree/bindings/mtd/partitions/
Dbrcm,bcm947xx-cfe-partitions.txt4 Broadcom is one of hardware manufacturers providing SoCs (BCM47xx) used in
7 meanings can also vary so fixed partitioning can't be used.
22 5) Backup TRX firmware used after failed upgrade
26 the same header. To distinguish currently used firmware a CFE's environment
27 variable "bootpartition" is used.
/Documentation/arm64/
Dacpi_object_usage.rst8 If a section number is used, it refers to a section number in the ACPI
9 specification where the object is defined. If "Signature Reserved" is used,
68 License has changed and should be usable. Optional if used instead
103 Optional, not currently supported, but could be used on ARM if and
138 provided, the Global Lock will NOT be used since it is not part of
153 used, not FIRMWARE_CTRL.
155 If PSCI is used (as is recommended), make sure that ARM_BOOT_ARCH is
159 For the DSDT that is also required, the X_DSDT field is to be used,
182 used on arm64.
230 should be used (types 0xA - 0xF).
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/Documentation/devicetree/bindings/crypto/
Drockchip-crypto.txt9 - clock-names: "aclk" used to clock data
10 "hclk" used to clock data
11 "sclk" used to clock crypto accelerator
12 "apb_pclk" used to clock dma
/Documentation/devicetree/bindings/serial/
Dserial.txt9 used as the UART's CTS line.
11 used as the UART's DCD line.
13 used as the UART's DSR line.
15 used as the UART's DTR line.
17 used as the UART's RNG line.
19 used as the UART's RTS line.
/Documentation/devicetree/bindings/arm/marvell/
Darmada-7k-8k.txt10 when the SoC being used is the Armada 7020
13 when the SoC being used is the Armada 7040
16 when the SoC being used is the Armada 8020
19 when the SoC being used is the Armada 8040
/Documentation/devicetree/bindings/c6x/
Ddscr.txt11 configuration register for writes. These configuration register may be used to
15 the DSCR block may provide registers which are used to reset peripherals,
20 id which is used by individual device drivers to control the state as needed.
47 offsset, and the key value used to unlock the register.
50 offset and key values of two "kick" registers used to write protect other
64 This property describes the bitfields used to control the state of devices.
65 Each tuple describes a range of identical bitfields used to control one or
80 This property describes the bitfields used to provide device state status
82 identical bitfields used to provide status for one or more devices (one
97 Offset and default value for register used to set access privilege for
/Documentation/devicetree/bindings/display/
Dsimple-framebuffer.yaml23 If the devicetree contains nodes for the display hardware used by a
31 to number things. If display# aliases are used, then if the simplefb
39 aliases. If display aliases are used then it should be set to the
48 If pre-filled framebuffer nodes are used, the firmware may need
51 be used and documented.
65 description: List of clocks used by the framebuffer.
68 description: List of power domains used by the framebuffer.
96 description: Pipeline used by the framebuffer on Allwinner SoCs
112 description: Pipeline used by the framebuffer on Amlogic SoCs
121 Regulators used by the framebuffer. These should be named
/Documentation/devicetree/bindings/dma/
Dmmp-dma.txt4 Used platforms: pxa688, pxa910, pxa3xx, etc
19 Used platforms: pxa25x, pxa27x, pxa3xx, pxa93x, pxa168, pxa910, pxa688.
52 Marvell Two Channel DMA Controller used specifically for audio
53 Used platforms: pxa688, pxa910
61 "marvell,adma-1.0" used on pxa688
62 "marvell,pxa910-squ" used on pxa910

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