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/Documentation/admin-guide/media/
Dipu3_rcb.svg6 <path style="stroke:none;" d="M 1 0 L 1 -15 L 9 -15 L 9 0 Z M 8 -1 L 8 -14 L 2 -14 L 2 -1 Z M 8 -1 …
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12 …C 6.4375 -9.5 7.398438 -9.109375 8.078125 -8.328125 C 8.753906 -7.546875 9.09375 -6.363281 9.09375…
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18 …C 7.015625 -2.644531 6.878906 -2.914062 6.609375 -3.125 C 6.335938 -3.34375 6 -3.53125 5.59375 -3.…
21 …C 9.203125 -3.910156 9.097656 -3.25 8.890625 -2.65625 C 8.679688 -2.0625 8.390625 -1.550781 8.0156…
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/Documentation/admin-guide/cgroup-v1/
Ddevices.rst5 1. Description
11 'type' is a (all), c (char), or b (block). 'all' means it applies
27 echo 'c 1:3 mr' > /sys/fs/cgroup/1/devices.allow
29 allows cgroup 1 to read and mknod the device usually known as
32 echo a > /sys/fs/cgroup/1/devices.deny
36 echo a > /sys/fs/cgroup/1/devices.allow
74 A allow "b 8:* rwm", "c 116:1 rw"
75 B deny "c 1:3 rwm", "c 116:2 rwm", "b 3:* rwm"
79 # echo "c 116:* r" > A/devices.deny
82 "c 116:2 rwm" will be removed::
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/Documentation/userspace-api/media/v4l/
Dpixfmt-v4l2-mplane.rst7 The struct :c:type:`v4l2_plane_pix_format` structures define size
9 struct :c:type:`v4l2_pix_format_mplane` structure contains
11 array of struct :c:type:`v4l2_plane_pix_format` structures,
18 .. c:type:: v4l2_plane_pix_format
23 :widths: 1 1 2
44 lines. See struct :c:type:`v4l2_pix_format`.
57 .. c:type:: v4l2_pix_format_mplane
62 :widths: 1 1 2
67 :c:type:`v4l2_pix_format`.
71 :c:type:`v4l2_pix_format`.
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Dvidioc-g-frequency.rst2 .. c:namespace:: V4L
18 .. c:macro:: VIDIOC_G_FREQUENCY
22 .. c:macro:: VIDIOC_S_FREQUENCY
30 File descriptor returned by :c:func:`open()`.
33 Pointer to struct :c:type:`v4l2_frequency`.
40 :c:type:`v4l2_frequency` to the respective tuner or
48 ``reserved`` array of a struct :c:type:`v4l2_frequency`
56 .. c:type:: v4l2_frequency
61 :widths: 1 1 2
66 the struct :c:type:`v4l2_input` ``tuner`` field and
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Dfunc-select.rst2 .. c:namespace:: V4L
18 .. code-block:: c
24 .. c:function:: int select( int nfds, fd_set *readfds, fd_set *writefds, fd_set *exceptfds, struct …
30 The highest-numbered file descriptor in any of the three sets, plus 1.
47 With the :c:func:`select()` function applications can suspend
56 On success :c:func:`select()` returns the total number of bits set in
58 a value of zero. On failure it returns -1 and the ``errno`` variable is
61 :ref:`VIDIOC_STREAMON` yet the :c:func:`select()`
66 When use of the :c:func:`read()` function has been negotiated and the
67 driver does not capture yet, the :c:func:`select()` function starts
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Dvidioc-s-hw-freq-seek.rst2 .. c:namespace:: V4L
18 .. c:macro:: VIDIOC_S_HW_FREQ_SEEK
26 File descriptor returned by :c:func:`open()`.
29 Pointer to struct :c:type:`v4l2_hw_freq_seek`.
38 :c:type:`v4l2_hw_freq_seek` and call the
43 :c:type:`v4l2_tuner` ``capability`` field has the
63 .. c:type:: v4l2_hw_freq_seek
68 :widths: 1 1 2
73 :c:type:`v4l2_input` ``tuner`` field and the struct
74 :c:type:`v4l2_tuner` ``index`` field.
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Dvidioc-dqevent.rst2 .. c:namespace:: V4L
18 .. c:macro:: VIDIOC_DQEVENT
26 File descriptor returned by :c:func:`open()`.
29 Pointer to struct :c:type:`v4l2_event`.
35 ioctl. All the fields of the struct :c:type:`v4l2_event`
42 .. c:type:: v4l2_event
49 :widths: 1 1 2
56 * - struct :c:type:`v4l2_event_vsync`
59 * - struct :c:type:`v4l2_event_ctrl`
62 * - struct :c:type:`v4l2_event_frame_sync`
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Dext-ctrls-colorimetry.rst28 .. c:type:: v4l2_ctrl_hdr10_cll_info
35 :widths: 1 1 2
53 .. c:type:: v4l2_ctrl_hdr10_mastering_display
60 :widths: 1 1 2
65 primary component c of the mastering display in increments of 0.00002.
67 color primaries, index value c equal to 0 corresponds to the Green
68 primary, c equal to 1 corresponds to Blue primary and c equal to 2
73 primary component c of the mastering display in increments of 0.00002.
75 color primaries, index value c equal to 0 corresponds to the Green
76 primary, c equal to 1 corresponds to Blue primary and c equal to 2
Dvidioc-enum-freq-bands.rst2 .. c:namespace:: V4L
18 .. c:macro:: VIDIOC_ENUM_FREQ_BANDS
26 File descriptor returned by :c:func:`open()`.
29 Pointer to struct :c:type:`v4l2_frequency_band`.
37 :c:type:`v4l2_frequency_band` and call the
45 .. c:type:: v4l2_frequency_band
50 :widths: 1 1 2 1 1
55 the struct :c:type:`v4l2_input` ``tuner`` field and
56 the struct :c:type:`v4l2_tuner` ``index`` field, or
57 the struct :c:type:`v4l2_output` ``modulator`` field
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Dvidioc-expbuf.rst2 .. c:namespace:: V4L
18 .. c:macro:: VIDIOC_EXPBUF
26 File descriptor returned by :c:func:`open()`.
29 Pointer to struct :c:type:`v4l2_exportbuffer`.
41 :c:type:`v4l2_exportbuffer`. The ``type`` field is
43 :c:type:`v4l2_requestbuffers` ``type``.
47 :c:type:`v4l2_requestbuffers` ``count``) minus
68 .. code-block:: c
77 if (ioctl(v4lfd, VIDIOC_EXPBUF, &expbuf) == -1) {
79 return -1;
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Dvidioc-g-parm.rst2 .. c:namespace:: V4L
18 .. c:macro:: VIDIOC_G_PARM
22 .. c:macro:: VIDIOC_S_PARM
30 File descriptor returned by :c:func:`open()`.
33 Pointer to struct :c:type:`v4l2_streamparm`.
51 section discussing the :c:func:`read()` function.
56 pointer to a struct :c:type:`v4l2_streamparm` which contains a
61 .. c:type:: v4l2_streamparm
66 :widths: 1 1 2
71 :c:type:`v4l2_format` ``type``, set by the
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Dpixfmt-y41p.rst10 Format with ¼ horizontal chroma resolution, also known as YUV 4:1:1
24 from "YUV 4:1:1 *packed*", while YUV411P stands for "YUV 4:1:1
99 - 1
111 - C
116 - C
119 * - 1
122 - C
127 - C
133 - C
138 - C
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Dvidioc-g-crop.rst2 .. c:namespace:: V4L
18 .. c:macro:: VIDIOC_G_CROP
22 .. c:macro:: VIDIOC_S_CROP
30 File descriptor returned by :c:func:`open()`.
33 Pointer to struct :c:type:`v4l2_crop`.
39 ``type`` field of a struct :c:type:`v4l2_crop` structure to the
45 and struct :c:type:`v4l2_rect` substructure named ``c`` of a
72 .. c:type:: v4l2_crop
79 :widths: 1 1 2
86 ``V4L2_BUF_TYPE_VIDEO_OVERLAY``. See :c:type:`v4l2_buf_type` and the note below.
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Dcrop.rst76 substructure of the struct :c:type:`v4l2_cropcap` returned
88 :c:type:`v4l2_crop` using the same coordinate system as
89 struct :c:type:`v4l2_cropcap`. Applications can use the
97 :c:type:`v4l2_cropcap`. The center of this rectangle
115 struct :c:type:`v4l2_crop` rectangle may have to be aligned,
118 struct :c:type:`v4l2_crop` may be smaller than the struct
119 :c:type:`v4l2_cropcap`. ``bounds`` area. Therefore, as
131 Suppose scaling on a video capture device is restricted to a factor 1:1
132 or 2:1 in either direction and the target image size must be a multiple
139 is 608 × 224 (224 × 2:1 would exceed the limit 400). The offset 0, 0 is
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Dvidioc-g-selection.rst2 .. c:namespace:: V4L
18 .. c:macro:: VIDIOC_G_SELECTION
22 .. c:macro:: VIDIOC_S_SELECTION
30 File descriptor returned by :c:func:`open()`.
33 Pointer to struct :c:type:`v4l2_selection`.
41 :c:type:`v4l2_selection` ``type`` field to the
43 value of struct :c:type:`v4l2_selection` ``target``
47 :c:type:`v4l2_selection` are ignored and they must be
52 struct :c:type:`v4l2_rect` ``r`` rectangle is filled with
59 :c:type:`v4l2_selection` ``type`` field to the
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Dvidioc-cropcap.rst2 .. c:namespace:: V4L
18 .. c:macro:: VIDIOC_CROPCAP
26 File descriptor returned by :c:func:`open()`.
29 Pointer to struct :c:type:`v4l2_cropcap`.
46 .. c:type:: v4l2_cropcap
53 :widths: 1 1 2
60 ``V4L2_BUF_TYPE_VIDEO_OVERLAY``. See :c:type:`v4l2_buf_type` and the note below.
72 Assuming pixel aspect 1/1 this could be for example a 640 × 480
76 * - struct :c:type:`v4l2_fract`
83 ``pixelaspect`` to 1/1. Other common values are 54/59 for PAL and
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/Documentation/userspace-api/media/mediactl/
Dmedia-ioc-enum-links.rst2 .. c:namespace:: MC
18 .. c:macro:: MEDIA_IOC_ENUM_LINKS
26 File descriptor returned by :c:func:`open()`.
29 Pointer to struct :c:type:`media_links_enum`.
35 entity field of a struct :c:type:`media_links_enum`
37 :c:type:`media_pad_desc` and struct
38 :c:type:`media_link_desc` structure arrays pointed by
55 .. c:type:: media_links_enum
62 :widths: 1 1 2
68 * - struct :c:type:`media_pad_desc`
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/Documentation/sphinx/
Dcdomain.py7 Replacement for the sphinx c-domain.
9 :copyright: Copyright (C) 2016 Markus Heiser
14 * Moved the *duplicate C object description* warnings for function
18 * Add option 'name' to the "c:function:" directive. With option 'name' the
21 .. c:function:: int ioctl( int fd, int request )
27 * :c:func:`VIDIOC_LOG_STATUS` or
40 from sphinx.domains.c import c_funcptr_sig_re, c_sig_re
41 from sphinx.domains.c import CObject as Base_CObject
42 from sphinx.domains.c import CDomain as Base_CDomain
55 # Handle trivial newer c domain tags that are part of Sphinx 3.1 c domain tags
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/Documentation/usb/
Dacm.rst5 Copyright (c) 1999 Vojtech Pavlik <vojtech@suse.cz>
32 1. Usage
34 The drivers/usb/class/cdc-acm.c drivers works with USB modems and USB ISDN terminal
74 T: Bus=01 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#= 1 Spd=12 MxCh= 2
76 D: Ver= 1.00 Cls=09(hub ) Sub=00 Prot=00 MxPS= 8 #Cfgs= 1
80 C:* #Ifs= 1 Cfg#= 1 Atr=40 MxPwr= 0mA
81 I: If#= 0 Alt= 0 #EPs= 1 Cls=09(hub ) Sub=00 Prot=00 Driver=hub
89 C: #Ifs= 1 Cfg#= 1 Atr=60 MxPwr= 0mA
94 C:* #Ifs= 2 Cfg#= 2 Atr=60 MxPwr= 0mA
95 I: If#= 0 Alt= 0 #EPs= 1 Cls=02(comm.) Sub=02 Prot=01 Driver=acm
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/Documentation/hwmon/
Dtmp103.rst23 temperatures to a resolution of 1°C. The TMP103 is specified for
24 operation over a temperature range of –40°C to +125°C.
27 Accuracy: ±1°C Typ (–10°C to +100°C)
Dlm93.rst35 A "0" allows SMBus block data transactions if the host supports them. A "1"
47 A "1" configures the VID pins for V(ih) = 0.8V min, V(il) = 0.4V max.
124 which 1 indicates #VRD_HOT is asserted and 0 indicates it is negated. These
135 Smart tach mode is enabled by the driver by writing 1 or 2 (associating the
147 where 0 disables and 1 enables the manual control mode. The sysfs files pwm1
176 #PROCHOT 1 & 2, and #VRDHOT 1 & 2. The bindings are expressed as a bitmask
177 in the sysfs files pwm<n>_auto_channels, where a "1" enables the binding, and
181 0x01 Temp 1
185 0x10 #PROCHOT 1
187 0x40 #VRDHOT 1
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/Documentation/driver-api/media/
Dv4l2-device.rst12 :c:func:`v4l2_device_register <v4l2_device_register>`
13 (dev, :c:type:`v4l2_dev <v4l2_device>`).
15 Registration will initialize the :c:type:`v4l2_device` struct. If the
17 :c:type:`v4l2_dev <v4l2_device>` argument.
24 properly initialized and registered :c:type:`media_device` instance.
26 If :c:type:`v4l2_dev <v4l2_device>`\ ->name is empty then it will be set to a
28 If you set it up before calling :c:func:`v4l2_device_register` then it will
30 :c:type:`v4l2_dev <v4l2_device>`\ ->name before calling
31 :c:func:`v4l2_device_register`.
33 You can use :c:func:`v4l2_device_set_name` to set the name based on a driver
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/Documentation/userspace-api/media/dvb/
Dnet-get-if.rst2 .. c:namespace:: DTV.net
18 .. c:macro:: NET_GET_IF
26 File descriptor returned by :c:func:`open()`.
29 pointer to struct :c:type:`dvb_net_if`
35 :c:type:`dvb_net_if`::ifnum field and fills the content of
36 struct :c:type:`dvb_net_if` with the packet ID and
38 created yet with :ref:`NET_ADD_IF <net>`, it will return -1 and fill
44 On success 0 is returned, and :c:type:`ca_slot_info` is filled.
46 On error -1 is returned, and the ``errno`` variable is set
Dfe_property_parameters.rst58 the main carrier has a 1/7 offset from the center.
77 The modulation can be one of the types defined by enum :c:type:`fe_modulation`.
88 ATSC (version 1) 8-VSB and 16-VSB.
90 DVB-C Annex A/C 16-QAM, 32-QAM, 64-QAM and 256-QAM.
91 DVB-C Annex B 64-QAM.
122 ATSC (version 1) No need to set. It is always 6MHz.
147 DVB-C and DVB-S.
159 The acceptable values are defined by :c:type:`fe_spectral_inversion`.
187 The acceptable values are defined by :c:type:`fe_code_rate`.
202 The acceptable values are defined by :c:type:`fe_sec_voltage`.
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/Documentation/networking/
Dsfp-phylink.rst23 1. PHY mode
51 exactly the settings given to it in its :c:func:`mac_config` function.
53 :c:func:`mac_link_up` and :c:func:`mac_link_down` functions.
65 acknowledge the control word. The :c:func:`mac_link_up` and
66 :c:func:`mac_link_down` functions must not force the MAC side link
76 1. Optionally split the network driver's phylib update function into
83 Please see :c:func:`mac_link_up` for more information on this.
114 :header-rows: 1
115 :widths: 1 1
139 .. code-block:: c
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