| /linux/Documentation/userspace-api/media/v4l/ |
| H A D | hist-v4l2.rst | 10 Soon after the V4L API was added to the kernel it was criticised as too 15 another four years and two stable kernel releases until the new API was 23 1998-08-27: The :c:func:`select()` function was introduced. 27 1998-09-18: The ``VIDIOC_NONCAP`` ioctl was replaced by the otherwise 39 1998-10-02: The ``id`` field was removed from 41 renamed. The :ref:`VIDIOC_QUERYSTD` ioctl was 45 Codec API was released. 50 1998-11-12: The read/write direction of some ioctls was misdefined. 57 with ``V4L2_CID_AUDIO``. The ``V4L2_MAJOR`` define was removed from 58 ``videodev.h`` since it was only used once in the ``videodev`` kernel [all …]
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| H A D | vidioc-qbuf.rst | 43 :c:type:`v4l2_buffer` to the same buffer type as was 113 ``EBUSY`` will be returned if the first buffer was queued directly and 138 when the buffer was enqueued. No new file descriptor is created at dequeue time 144 queue. When the ``O_NONBLOCK`` flag was given to the 160 buffer was in the outgoing queue. 165 ``length`` are invalid, or the ``V4L2_BUF_FLAG_REQUEST_FD`` flag was 166 set but the given ``request_fd`` was invalid, or ``m.fd`` was 185 codecs if a buffer with the ``V4L2_BUF_FLAG_LAST`` was already 189 The ``V4L2_BUF_FLAG_REQUEST_FD`` flag was set but the device does not 191 the ``V4L2_BUF_FLAG_REQUEST_FD`` flag was not set but the device requires [all …]
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| H A D | vidioc-query-dv-timings.rst | 57 If the timings could not be detected because there was no signal, then 58 ENOLINK is returned. If a signal was detected, but it was unstable and 79 No timings could be detected because no signal was found. 82 The signal was unstable and the hardware could not lock on to it.
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| H A D | func-write.rst | 54 nothing was written. On error, -1 is returned, and the ``errno`` 60 :ref:`O_NONBLOCK <func-open>` flag and no buffer space was 74 The call was interrupted by a signal before any data was written.
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| /linux/tools/perf/arch/arm/entry/syscalls/ |
| H A D | syscall.tbl | 22 # 7 was sys_waitpid 32 # 17 was sys_break 33 # 18 was sys_stat 43 # 28 was sys_fstat 46 # 31 was sys_stty 47 # 32 was sys_gtty 50 # 35 was sys_ftime 59 # 44 was sys_prof 63 # 48 was sys_signal 68 # 53 was sys_lock [all …]
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| /linux/Documentation/ABI/obsolete/ |
| H A D | automount-tracefs-debugfs | 7 The ftrace was first added to the kernel, its interface was placed 11 new interface was created called "tracefs". This was a stand alone 12 file system and was usually mounted in /sys/kernel/tracing. 16 the "tracing" directory of debugfs. The tracefs interface was added
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| /linux/Documentation/scheduler/ |
| H A D | sched-nice-design.rst | 11 Unfortunately that was not that easy to implement under the old 13 support was historically coupled to timeslice length, and timeslice 14 units were driven by the HZ tick, so the smallest timeslice was 1/HZ. 41 changing the ABI to extend priorities was discarded early on.) 48 this was long ago when hardware was weaker and caches were smaller, and 60 coupling to timeslices and granularity it was not really viable. 63 about Linux's nice level support was its asymmetry around the origin 79 depend on the nice level of the parent shell - if it was at nice -10 the 80 CPU split was different than if it was at +5 or +10. 82 A third complaint against Linux's nice level support was that negative [all …]
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| /linux/Documentation/filesystems/ |
| H A D | locks.rst | 18 The old flock(2) emulation in the kernel was swapped for proper BSD 33 Because sendmail was unable to use the old flock() emulation, many sendmail 35 for example. This gave rise to some other subtle problems if sendmail was 50 race and deadlock conditions that the current solution was the only 60 Mandatory locking was prior to this release a general configuration option 61 that was valid for all mounted filesystems. This had a number of inherent 62 dangers, not the least of which was the ability to freeze an NFS server by 65 Such option was dropped in Kernel v5.14.
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| H A D | dnotify.rst | 19 DN_ACCESS A file in the directory was accessed (read) 20 DN_MODIFY A file in the directory was modified (write,truncate) 21 DN_CREATE A file was created in the directory 22 DN_DELETE A file was unlinked from directory 23 DN_RENAME A file in the directory was renamed
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| /linux/Documentation/admin-guide/ |
| H A D | tainted-kernels.rst | 25 why the kernel was tainted is shown after the Process ID ('PID:') and a shortened 35 You'll find a 'Not tainted: ' there if the kernel was not tainted at the 36 time of the event; if it was, then it will print 'Tainted: ' and characters 42 the kernel got tainted earlier because a proprietary Module (``P``) was loaded, 43 a warning occurred (``W``), and an externally-built module was loaded (``O``). 61 * Proprietary module was loaded (#0) 63 * Externally-built ('out-of-tree') module was loaded (#12) 69 You can try to decode the number yourself. That's easy if there was only one 85 0 G/P 1 proprietary module was loaded 86 1 _/F 2 module was force loaded [all …]
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| /linux/tools/perf/arch/sh/entry/syscalls/ |
| H A D | syscall.tbl | 27 # 17 was break 41 # 31 was stty 42 # 32 was gtty 45 # 35 was ftime 54 # 44 was prof 63 # 53 was lock 66 # 56 was mpx 68 # 58 was ulimit 69 # 59 was olduname 92 # 82 was select [all …]
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| /linux/Documentation/userspace-api/media/cec/ |
| H A D | cec-ioc-receive.rst | 102 - Timestamp in ns of when the last byte of the message was transmitted. 107 - Timestamp in ns of when the last byte of the message was received. 115 filled in by the driver with the length of the reply message if ``reply`` was set. 132 was not 0), then the ``sequence`` field of the reply will be set to the sequence 143 the payload of the reply message if ``timeout`` was set. 263 - The message was transmitted successfully. This is mutually 266 the transmit was eventually successful. 271 - CEC line arbitration was lost, i.e. another transmit started at the 278 - Message was not acknowledged. Note that some hardware cannot tell apart 286 - Low drive was detected on the CEC bus. This indicates that a [all …]
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| /linux/Documentation/arch/powerpc/ |
| H A D | vcpudispatch_stats.rst | 31 2. number of times this vcpu was dispatched on the same processor as last 33 3. number of times this vcpu was dispatched on a different processor core 35 4. number of times this vcpu was dispatched on a different chip 36 5. number of times this vcpu was dispatches on a different socket/drawer 42 6. number of times this vcpu was dispatched in its home node (chip) 43 7. number of times this vcpu was dispatched in a different node 44 8. number of times this vcpu was dispatched in a node further away (numa
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| /linux/Documentation/arch/arm/nwfpe/ |
| H A D | nwfpe.rst | 7 The majority of the code was written by me, Scott Bambrough It is 9 where required. It was written quickly, with a goal of implementing a 20 Another choice I made was in the file structure. I have attempted to 33 SoftFloat to the ARM was done by Phil Blundell, based on an earlier 61 SoftFloat was written by John R. Hauser. This work was made possible in 63 1947 Center Street, Berkeley, California 94704. Funding was partially 65 original version of this code was written as part of a project to build
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| /linux/Documentation/userspace-api/gpio/ |
| H A D | error-codes.rst | 20 - The device was opened in non-blocking mode and a read can't 31 usage of a resource that was already allocated. The ioctl must not 37 - There was a failure while copying data from/to userspace, probably 47 - Device not found or was removed. 68 - Typically returned when a feature requiring interrupt support was
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| /linux/Documentation/userspace-api/media/dvb/ |
| H A D | frontend-stat-properties.rst | 39 frontend, but it was not possible to collect it (could be a 64 measurement was not complete yet. 83 measurement was not complete yet. 114 measurement was not complete yet. 128 measurement was taken. 142 measurement was not complete yet. 171 measurement was not complete yet. 185 measurement was taken. 199 measurement was not complete yet. 220 measurement was not complete yet. [all …]
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| /linux/Documentation/scsi/ |
| H A D | sym53c500_cs.rst | 8 package, and was written by Tom Corner (tcorner@via.at). A rewrite was 14 All the USE_BIOS code has been ripped out. It was never used, and could 20 The Symbios Logic 53c500 chip was used in the "newer" (circa 1997) version
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| /linux/tools/testing/selftests/ftrace/ |
| H A D | README | 55 * FAIL: The test failed, but was expected to succeed. The test which exits 59 for example, the test was interrupted 61 or the test was set up incorrectly 64 * UNTESTED: The test was not run, currently just a placeholder. 70 * XFAIL: The test failed, and was expected to fail.
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| /linux/Documentation/sound/codecs/ |
| H A D | cs35l56.rst | 131 filename qualifier. Support for the l?u? qualifier was added in kernel 6.16. 167 [ 7.947844] cs35l56 sdw:0:0:01fa:3556:01:0: Slave 4 state check1: UNATTACHED, status was 1 174 [10.879235] cs35l56 sdw:0:0:01fa:3556:01:0: Slave 4 state check1: UNATTACHED, status was 1 212 Shows that a .wmfw firmware file was found and downloaded. 215 Shows that a .bin firmware file was found and downloaded. 218 Factory calibration data in EFI was written to the amplifier. 226 Caused by mismatched .wmfw and .bin file, or .bin file was found but 227 .wmfw was not. 231 Caused by mismatched .wmfw and .bin file, or .bin file was found but 232 .wmfw was not. [all …]
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| /linux/Documentation/watchdog/ |
| H A D | watchdog-api.rst | 104 printf("The timeout was set to %d seconds\n", timeout); 106 This example might actually print "The timeout was set to 60 seconds" 113 printf("The timeout was is %d seconds\n", timeout); 136 printf("The pretimeout was is %d seconds\n", timeout); 148 printf("The timeout was is %d seconds\n", timeleft); 177 The machine was last rebooted by the watchdog because the thermal limit was 190 External monitoring relay/source 1 was triggered. Controllers intended for 198 External monitoring relay/source 2 was triggered 210 The last reboot was caused by the watchdog card 224 The watchdog saw a keepalive ping since it was last queried.
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| /linux/Documentation/driver-api/usb/ |
| H A D | error-codes.rst | 73 ``-EPERM`` Submission failed because ``urb->reject`` was set. 75 ``-EHOSTUNREACH`` URB was rejected because the device is suspended. 103 ``-ENOENT`` URB was synchronously unlinked by 121 a driver cannot tell whether there was a 133 completed, and no other error was reported 148 ``-EOVERFLOW`` [#f1]_ The amount of data returned by the endpoint was 155 was set in ``urb->transfer_flags``. 157 ``-ENODEV`` Device was removed. Often preceded by a burst 168 ``-ECONNRESET`` URB was asynchronously unlinked by
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| /linux/Documentation/core-api/ |
| H A D | errseq.rst | 7 point where it was sampled. 22 a flag to tell whether the value has been sampled since a new value was 24 sampled it since the last time an error was recorded. 36 any new errors have occurred since that sampling was done, and atomically 37 record the state at the time that it was checked. This allows us to 44 has ever been an error set since it was first initialized. 111 whether one was made since they last checked, and the latest value 117 mistake occurred while his job was processing. 154 since the last time it was checked.
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| /linux/Documentation/i2c/ |
| H A D | fault-codes.rst | 48 transmit mode: some other master was transmitting different 65 Returned by SMBus adapters when the bus was busy for longer 68 or that the reset was attempted but failed. 72 detected before any I/O operation was started. Use a more 95 an I2C device was temporarily not responding, usually it 108 have verified that functionality was supported before it 124 Returned when a transfer was requested using an adapter 129 time, and was aborted before it completed.
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| /linux/Documentation/mm/ |
| H A D | hugetlbfs_reserv.rst | 13 was added, it was determined that it would be better to detect a shortage 15 huge pages to cover the mapping, the mmap() would fail. This was first 18 kernel, the code has evolved over time. However, the basic idea was to 111 flag was specified in either the shmget() or mmap() call. If NORESERVE 112 was specified, then this routine returns immediately as no reservations 165 was adjusted, then the reservation map associated with the mapping is 171 If hugetlb_reserve_pages() was successful, the global reservation count and 219 when the page is removed from the free list. If there was a reservation 242 map. For shared mappings where the reservation was present, an entry 244 was no reservation in a shared mapping or this was a private mapping a new [all …]
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| /linux/Documentation/userspace-api/media/mediactl/ |
| H A D | media-request-ioc-queue.rst | 34 If the request was successfully queued, then the file descriptor can be 37 If the request was already queued before, then ``EBUSY`` is returned. 48 (without a request). ``EBUSY`` will be returned if the first buffer was 62 The request was already queued or the application queued the first
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