| /Documentation/sound/hd-audio/ |
| D | controls.rst | 13 appears only when the surround channels are available.
23 When there are only either headphones or line-out jacks, it gives
24 "Disabled" and "Enabled" state. When enabled, the speaker is muted
25 automatically when a jack is plugged.
27 When both headphone and line-out jacks are present, it gives
28 "Disabled", "Speaker Only" and "Line-Out+Speaker". When
30 mutes the speakers, but not line-outs. When line-out+speaker is
40 appears only when "loopback" is set to true in a codec hint
42 and the normal PCM playback are exclusive, i.e. when this is on, you
47 corresponds to the center and the right to the LFE. When this is
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| /Documentation/i2c/ |
| D | fault-codes.rst | 43 Returned by I2C adapters not supporting 10 bit addresses when
47 Returned by I2C adapters when they lose arbitration in master
51 Also returned when trying to invoke an I2C operation in an
52 atomic context, when some task is already using that I2C bus
56 Returned by SMBus logic when an invalid Packet Error Code byte
65 Returned by SMBus adapters when the bus was busy for longer
73 specific fault code when you can.
76 This rather vague error means something went wrong when
78 code when you can.
89 Returned by any component that can't allocate memory when
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| /Documentation/core-api/ |
| D | debug-objects.rst | 73 When the real object is already tracked by debugobjects it is checked,
75 active and destroyed objects. When debugobjects detects an error, then
82 When the real object is not yet tracked by debugobjects, debugobjects
96 When the real object is already tracked by debugobjects it is checked,
98 active and destroyed objects. When debugobjects detects an error, then
105 When the real object is not yet tracked by debugobjects debugobjects
120 When the real object is already tracked by debugobjects it is checked,
122 active and destroyed objects. When debugobjects detects an error, then
128 When the real object is not yet tracked by debugobjects then the
135 When the activation is legitimate, then the state of the associated
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| /Documentation/filesystems/ |
| D | hpfs.rst | 45 bitmaps when accessing it).
47 Behaviour when filesystem errors found.
49 When to mark filesystem dirty so that OS/2 checks it.
54 when you use chmod/chown/chgrp/mknod/ln -s on the filesystem.
64 are case sensitive, so for example when you create a file FOO, you can use
68 bootsect.s. When searching for file thats name has characters >= 128, codepages
87 they're just changed. It means that when your default uid=0 and you type
89 extended attribute UID=0. And when you umount the fs and mount it again with
92 read-only flag. When you mknod a block or char device, besides "MODE", the
108 stored in very crazy way. They tried to do it so that link changes when file is
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| /Documentation/devicetree/bindings/memory-controllers/ |
| D | rockchip,rk3399-dmc.yaml | 44 The CPU interrupt number. It should be a DCF interrupt. When DDR DVFS
108 Defines the DDR3 DLL bypass frequency in MHz. When DDR frequency is less
116 Defines the PHY dll bypass frequency in MHz (Mega Hz). When DDR frequency
130 When the DRAM type is DDR3, this parameter defines the ODT disable
131 frequency in Hz. When the DDR frequency is less then ddr3_odt_dis_freq,
138 When the DRAM type is DDR3, this parameter defines the DRAM side drive
146 When the DRAM type is DDR3, this parameter defines the DRAM side ODT
154 When the DRAM type is DDR3, this parameter defines the phy side CA line
162 When the DRAM type is DDR3, this parameter defines the PHY side DQ line
170 When the DRAM type is DDR3, this parameter defines the PHY side ODT
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| /Documentation/networking/ |
| D | ipvs-sysctl.rst | 20 used in the automatic modes of defense. When there is no
42 bit 1: enable rescheduling of new connections when it is safe.
43 That is, whenever expire_nodest_conn and for TCP sockets, when
47 bit 2: it is bit 1 plus, for TCP connections, when connections
67 Only available when IPVS is compiled with CONFIG_IP_VS_NFCT enabled.
74 directly when no cache server is available and destination
93 Only available when IPVS is compiled with CONFIG_IP_VS_DEBUG enabled.
113 modes (when there is no enough available memory, the strategy
128 when available memory is less than the available memory
129 threshold. When the mode 3 is set, the always mode drop rate
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| /Documentation/kbuild/ |
| D | kbuild.rst | 18 by modprobe to not fail when trying to load something builtin.
36 Additional options to pass when preprocessing. The preprocessing options
42 Additional options to pass to $(CC_COMPAT) when preprocessing C and assembler
67 Additional options for $(CC) when used to compile
76 Additional options for $(RUSTC) when used to compile
85 Additional options used for $(LD) when linking modules.
89 Additional flags to be passed to $(HOSTCC) when building host programs.
93 Additional flags to be passed to $(HOSTCXX) when building host programs.
97 Additional flags to be passed to $(HOSTRUSTC) when building host programs.
101 Flags to be passed when linking Rust proc macros. Since proc macros are loaded
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| /Documentation/devicetree/bindings/usb/ |
| D | snps,dwc3.yaml | 60 SoC Bus Clock (AHB/AXI/Native). ref generates ITP when the UTMI/ULPI
61 PHY is suspended. suspend clocks a small part of the USB3 core when
128 When set, disable isoc START TRANSFER command failure SW work-around
134 True when SW should disable data scrambling. Only really useful for FPGA
139 description: True when DWC3 was configured with LPM Erratum enabled
156 When set, the core will always request for P1/P2/P3 transition sequence.
161 When set core will delay P1/P2/P3 until a certain amount of 8B10B errors
166 description: When set core will delay PHY power change from P0 to P1/P2/P3.
170 description: When set core will filter LFPS reception.
175 when set core will disable a 400us delay to start Polling LFPS after
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| /Documentation/scheduler/ |
| D | sched-stats.rst | 83 1) # of times in this domain sched_balance_rq() was called when the
86 the load did not require balancing when the cpu was idle
88 more tasks and failed, when the cpu was idle
90 sched_balance_rq() in this domain when the cpu was idle
91 5) # of times in this domain pull_task() was called when the cpu
94 the target task was cache-hot when idle
99 9) # of times in this domain sched_balance_rq() was called when the
102 load did not require balancing when busy
104 more tasks and failed, when the cpu was busy
106 sched_balance_rq() in this domain when the cpu was busy
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| /Documentation/leds/ |
| D | ledtrig-transient.rst | 16 set a timer to hold a state, however when user space application crashes or
24 When an led class device driver registers itself, it can specify all leds
29 When the driver unregisters, deactivation routine for the currently active
41 class device property. When brightness is set to 0 from user space via
56 non-transient state. When driver gets suspended, irrespective of the transient
68 This trigger exports three properties, activate, state, and duration. When
80 1 when activated, 0 when deactivated.
81 default value is zero when transient trigger is enabled,
90 - one shot timer value. When activate is set, duration value
101 If state = LED_FULL, when the timer runs out the state will
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| /Documentation/devicetree/bindings/iio/addac/ |
| D | adi,ad74115.yaml | 140 When not present, the digital input range is from 0 to 3700uA in steps
142 When present, the digital input range is from 0 to 7400uA in steps
154 When not present, a counter increments when the signal is asserted
155 and decrements when the signal is de-asserted.
156 When present, a counter increments while the signal is asserted and
157 resets when the signal de-asserts
174 When not present, the digital input threshold range is -0.96 * AVDD
176 When present, the threshold range is fixed from -19V to 30V.
181 When not present, the DAC operates in the 0V to 12V range.
182 When present, the DAC operates in the -12V to 12V range.
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| /Documentation/livepatch/ |
| D | system-state.rst | 69 The check is done when the livepatch is enabled. The rules are:
89 - Modify the system state when the livepatch gets enabled and the state
93 - Take over or update the system state modification when is has already
96 - Restore the original state when the livepatch is disabled.
98 - Restore the previous state when the transition is reverted.
102 - Remove any already made changes when error occurs and the livepatch
113 - Allocate *state->data* when necessary. The allocation might fail
115 of the livepatch. The allocation is not needed when the data
123 when the entire system is able to handle it.
130 - Copy *state->data* from the previous livepatch when they are
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| /Documentation/misc-devices/ |
| D | bh1770glc.rst | 37 interrupts the delayed work is pushed forward. So, when proximity level goes
41 Chip state is controlled via runtime pm framework when enabled in config.
65 sysfs_notify called when threshold interrupt occurs
102 sysfs_notify called when threshold interrupt occurs
119 RW - Measurement rate (in Hz) when the level is above threshold
120 i.e. when proximity on has been reported.
123 RW - Measurement rate (in Hz) when the level is below threshold
124 i.e. when proximity off has been reported.
|
| /Documentation/sound/designs/ |
| D | procfile.rst | 11 found in this tree. When you encounter a problem and need debugging,
36 Appears only when ``CONFIG_SND_DEBUG=y``.
66 When PCM devices are available on this card, you can see directories
75 When the card is equipped with AC97 codecs, there are ``codec97#*``
78 When the OSS mixer emulation is enabled (and the module is loaded),
93 This file appears when ``CONFIG_SND_DEBUG=y`` and
108 When the bit 0 is set, the driver will show the messages to
109 kernel log when an xrun is detected. The debug message is
110 shown also when the invalid H/W pointer is detected at the
114 When the bit 1 is set, the driver will show the stack trace
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| /Documentation/firmware-guide/acpi/ |
| D | method-tracing.rst | 26 ACPICA subsystem provides debugging outputs when CONFIG_ACPI_DEBUG is
33 But when the particular layer/level is applied to the control method
37 logs when the control method evaluation is started, and disable the
38 detailed logging when the control method evaluation is stopped.
43 a. Filter out the debug layer/level matched logs when control methods
51 b. Filter out the debug layer/level matched logs when the specified
60 c. Filter out the debug layer/level matched logs when the specified
109 a. Filter out the method start/stop "AML tracer" logs when control
117 b. Filter out the method start/stop "AML tracer" when the specified
126 c. Filter out the method start/stop "AML tracer" logs when the specified
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| /Documentation/ABI/testing/ |
| D | sysfs-class-power-wilco | 19 Charging begins when level drops below
20 charge_control_start_threshold, and ceases when
26 be denied by Wilco EC when Long Life mode is enabled.
32 Used when charge_type="Custom", as described above. Measured in
39 Used when charge_type="Custom", as described above. Measured in
|
| D | sysfs-driver-w1_ds28e17 | 5 Description: When written, this file sets the I2C speed on the connected
6 DS28E17 chip. When read, it reads the current setting from
18 Description: When written, this file sets the multiplier used to calculate
20 chip. When read, returns the current setting.
|
| /Documentation/userspace-api/media/v4l/ |
| D | func-poll.rst | 35 When streaming I/O has been negotiated this function waits until a
40 display. When buffers are already in the outgoing queue of the driver
49 ``POLLWRNORM`` flags. When the function timed out it returns a value of
51 appropriately. When the application did not call
54 field. When the application has called
66 When use of the :c:func:`read()` function has been negotiated and the
68 capturing. When that fails it returns a ``POLLERR`` as above. Otherwise
69 it waits until data has been captured and can be read. When the driver
73 When use of the :c:func:`write()` function has been negotiated and the
75 streaming. When that fails it returns a ``POLLERR`` as above. Otherwise
|
| D | buffer.rst | 44 as the buffer size when the selected format includes padding at the end of
58 ``V4L2_CTRL_FLAG_GRABBED`` flag when calling
69 selection rectangles. When those ioctls result in a buffer size or layout
74 when the stream is stopped. As they don't influence the buffer size, no
110 When reallocation is required, any attempt to modify format or controls that
171 - Number of the buffer, set by the application except when calling
189 this field when ``type`` refers to a capture stream, applications
190 when it refers to an output stream. For multiplanar formats this field
199 :c:type:`v4l2_field`. This field is not used when the buffer
200 contains VBI data. Drivers must set it when ``type`` refers to a
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| /Documentation/arch/arm64/ |
| D | tagged-pointers.rst | 32 - the stack pointer (sp), e.g. when interpreting it to deliver a
35 - the frame pointer (x29) and frame records, e.g. when interpreting
38 Using non-zero address tags in any of these locations when the
43 For these reasons, when the AArch64 Tagged Address ABI is disabled,
56 When delivering signals, non-zero tags are not preserved in
58 sigaction.sa_flags when the signal handler was installed. This means
79 This behaviour is maintained when the AArch64 Tagged Address ABI is
86 Special care should be taken when using tagged pointers, since it is
|
| /Documentation/admin-guide/device-mapper/ |
| D | writecache.rst | 9 When the device is constructed, the first sector should be zeroed or the
27 start writeback when the number of used blocks reach this
30 stop writeback when the number of used blocks drops below
37 when the application writes this amount of blocks without
46 when writing data from persistent memory back to the
50 flag when writing back data and send the FLUSH request
56 when this option is activated (either in the constructor
62 process with "dmsetup status". When the number of cached
100 when you are going to remove the cache device. The proper
|
| /Documentation/devicetree/bindings/dma/ |
| D | stericsson,dma40.yaml | 87 The second cell is the DMA request line number. This is only used when
94 Logical channel when unset
95 Physical channel when set
97 Memory to Device when unset
98 Device to Memory when set
100 Little endian when unset
101 Big endian when set
103 Use automatic channel selection when unset
104 Use DMA request line number when set
106 Normal priority when unset
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| /Documentation/devicetree/bindings/iio/adc/ |
| D | adi,ad7944.yaml | 45 When this property is omitted, it is assumed that the device is using what
47 when there are multiple devices on the same bus. In this mode, the CNV
51 When this property is present, it indicates that the device is using one
56 spi-3wire property!) This mode is often used when the ADC is the only
61 on wiring when multiple ADCs are used. In this mode, the SDI line of
82 A voltage supply for the buffered power. When using an external reference
84 connected to the same supply as ref-supply. Otherwise, when using an
91 is omitted when using an internal reference.
95 Voltage regulator for the reference buffer input (REFIN). When using an
118 When present, this property indicates that the TURBO line is hard-wired
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| /Documentation/ABI/obsolete/ |
| D | sysfs-driver-hid-roccat-kovaplus | 5 When read, this attribute returns the number of the active
15 When read, this attribute returns the number of the active
17 When written, the mouse activates this profile immediately.
18 The profile that's active when powered down is the same that's
19 active when the mouse is powered on.
26 When read, this attribute returns the number of the actual
36 When read, this attribute returns the number of the actual
45 Description: When read, this file returns the raw integer version number of the
57 Description: When read, this file returns general data like firmware version.
58 When written, the device can be reset.
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| /Documentation/admin-guide/sysctl/ |
| D | fs.rst | 64 can be reclaimed when memory is short and ``want_pages`` is
65 nonzero when ``shrink_dcache_pages()`` has been called and the
78 handles that the Linux kernel will allocate. When you get lots
116 preshrink is nonzero when the
141 UIDs and GIDs are 32 bits. When one of these filesystems is mounted
154 below the limit again. When set to 0, no limit is applied, which is the default
166 allocate up to 1024 pipes at their default size. When set to 0, no limit is
177 When set to "0", writing to FIFOs is unrestricted.
179 When set to "1" don't allow ``O_CREAT`` open on FIFOs that we don't own
183 When set to "2" it also applies to group writable sticky directories.
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