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/Documentation/devicetree/bindings/usb/
Dux500-usb.txt25 dmas = <&dma 38 0 0x2>, /* Logical - DevToMem */
26 <&dma 38 0 0x0>, /* Logical - MemToDev */
27 <&dma 37 0 0x2>, /* Logical - DevToMem */
28 <&dma 37 0 0x0>, /* Logical - MemToDev */
29 <&dma 36 0 0x2>, /* Logical - DevToMem */
30 <&dma 36 0 0x0>, /* Logical - MemToDev */
31 <&dma 19 0 0x2>, /* Logical - DevToMem */
32 <&dma 19 0 0x0>, /* Logical - MemToDev */
33 <&dma 18 0 0x2>, /* Logical - DevToMem */
34 <&dma 18 0 0x0>, /* Logical - MemToDev */
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/Documentation/admin-guide/device-mapper/
Ddm-ebs.rst7 a smaller logical block size on a device with a larger logical block
11 Supported emulated logical block sizes 512, 1024, 2048 and 4096.
29 Number of sectors defining the logical block size to be emulated;
35 Number of sectors defining the logical block size of <dev path>.
37 If not provided, the logical block size of <dev path> will be used.
42 Emulate 1 sector = 512 bytes logical block size on /dev/sda starting at
47 Emulate 2 sector = 1KiB logical block size on /dev/sda starting at
49 This presumes 2KiB logical blocksize on /dev/sda or less to work:
Dvdo.rst56 <offset> <logical device size> vdo V4 <storage device>
64 The offset, in sectors, at which the vdo volume's logical
67 logical device size:
69 in sectors. Must match the current logical size of the vdo
88 If the logical thread count is non-zero, the cache size
89 must be at least 4096 blocks per logical thread.
108 If <hash>, <logical>, and <physical> are all set to 0, the work handled by
139 logical:
141 based on the logical address of incoming bios. The default
178 modifiable parameters are <logical device size>, <physical device size>,
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Dvdo-design.rst9 can be backed by up to 256TB of storage, and can present a logical size of
30 maps from logical block addresses to the actual storage location of the
266 The block map contains the logical to physical mapping. It can be thought
267 of as an array with one entry per logical address. Each entry is 5 bytes,
269 the given logical address. The other 4 bits are used to indicate the nature
270 of the mapping. Of the 16 possible states, one represents a logical address
274 slots in the compressed block contains the data for this logical address.
280 There are 60 radix trees which are assigned to "logical zones" in round
281 robin fashion. (If there are L logical zones, tree n will belong to zone n
282 mod L.) At each level, the trees are interleaved, so logical addresses
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/Documentation/usb/
Dmass-storage.rst10 multiple logical units (LUNs). Backing storage for each LUN is
41 backing storage for each logical unit. There may be at most
48 read, but (if the logical unit is writable) due to buffering on
51 The size of the logical unit will be rounded down to a full
52 logical block. The logical block size is 2048 bytes for LUNs
58 This parameter specifies whether each logical unit should be
62 If this option is set for a logical unit, gadget will accept an
64 backing file will be closed to simulate ejection and the logical
69 If a logical unit is not removable (the default), a backing file
81 Note that “removable” means the logical unit's media can be
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/Documentation/i2c/
Di2c-sysfs.rst12 kernel abstracts the MUX channels into logical I2C bus numbers. However, there
14 to logical I2C bus number. This doc is aimed to fill in this gap, so the
16 the concept of logical I2C buses in the kernel, by knowing the physical I2C
41 start with ``i2c-`` are I2C buses, which may be either physical or logical. The
77 Logical I2C Bus
80 Every I2C bus number you see in Linux I2C Sysfs is a logical I2C bus with a
84 Each logical I2C bus may be an abstraction of a physical I2C bus controller, or
86 MUX channel, whenever we access an I2C device via a such logical bus, the kernel
93 If the logical I2C bus is a direct abstraction of a physical I2C bus controller,
101 to a different number in logical I2C bus level in Device Tree Source (DTS) under
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/Documentation/ABI/testing/
Dsysfs-bus-pci-devices-cciss5 Description: Displays the SCSI INQUIRY page 0 model for logical drive
12 Description: Displays the SCSI INQUIRY page 0 revision for logical
19 Description: Displays the SCSI INQUIRY page 83 serial number for logical
26 Description: Displays the SCSI INQUIRY page 0 vendor for logical drive
39 Description: Kicks of a rescan of the controller to discover logical
46 Description: Displays the 8-byte LUN ID used to address logical
53 Description: Displays the RAID level of logical drive Y of
60 Description: Displays the usage count (number of opens) of logical drive Y
Dsysfs-class-fc8 an application or logical entity such as a virtual
9 machine or container group. The application or logical
/Documentation/userspace-api/media/cec/
Dcec-ioc-adap-g-log-addrs.rst15 CEC_ADAP_G_LOG_ADDRS, CEC_ADAP_S_LOG_ADDRS - Get or set the logical addresses
40 To query the current CEC logical addresses, applications call
42 struct :c:type:`cec_log_addrs` where the driver stores the logical addresses.
44 To set new logical addresses, applications fill in
52 To clear existing logical addresses set ``num_log_addrs`` to 0. All other fields
58 then this ioctl will block until all requested logical
60 not wait for the logical addresses to be claimed, instead it just returns 0.
63 logical addresses are claimed or cleared.
66 logical address types are already defined will return with error ``EBUSY``.
81 - The actual logical addresses that were claimed. This is set by the
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Dcec-ioc-adap-g-phys-addr.rst55 If logical address types have been defined (see :ref:`ioctl CEC_ADAP_S_LOG_ADDRS <CEC_ADAP_S_LOG_AD…
57 requested logical addresses have been claimed. If the file descriptor is in non-blocking mode
58 then it will not wait for the logical addresses to be claimed, instead it just returns 0.
/Documentation/ABI/stable/
Dsysfs-class-ubi38 Amount of available logical eraseblock. For example, one may
39 create a new UBI volume which has this amount of logical
70 Maximum logical eraseblock size this UBI device may provide. UBI
71 volumes may have smaller logical eraseblock size because of their
148 Volume alignment - the value the logical eraseblock size of
150 logical eraseblock size is multiple of 2048. In other words,
151 volume logical eraseblock size is UBI device logical eraseblock
192 Equivalent to the volume size in logical eraseblocks.
219 Logical eraseblock size of this volume. Equivalent to logical
/Documentation/admin-guide/hw-vuln/
Dspecial-register-buffer-data-sampling.rst66 staging buffer before the secret data can be accessed by another logical
70 accesses from other logical processors will be delayed until the special
78 #. Executing RDRAND at the same time on multiple logical processors will be
83 logical processors that miss their core caches, with an impact similar to
88 Software Guard Extensions (Intel SGX) enclaves. On logical processors that
90 take longer to execute and do not impact performance of sibling logical
102 Setting IA32_MCU_OPT_CTRL[0] (RNGDS_MITG_DIS) to 1 for a logical processor
104 enclave on that logical processor. Opting out of the mitigation for a
105 particular logical processor does not affect the RDRAND and RDSEED mitigations
106 for other logical processors.
/Documentation/gpu/rfc/
Di915_scheduler.rst104 * Export engines logical mapping
109 Export engines logical mapping
111 Certain use cases require BBs to be placed on engine instances in logical order
112 (e.g. split-frame on gen11+). The logical mapping of engine instances can change
114 logical mapping with the existing query engine info IOCTL. Also the GuC
116 engines in logical order which is a new requirement compared to execlists.
117 Lastly, all current platforms have at most 2 engine instances and the logical
122 logical instance has been returned and a new field,
123 drm_i915_engine_info.logical_instance, returns the logical instance.
/Documentation/networking/device_drivers/ethernet/huawei/
Dhinic.rst34 hinic_dev - Implement a Logical Network device that is independent from
104 Tx Queues - Logical Tx Queues that use the HW Send Queues for transmit.
105 The Logical Tx queue is not dependent on the format of the HW Send Queue.
108 Rx Queues - Logical Rx Queues that use the HW Receive Queues for receive.
109 The Logical Rx queue is not dependent on the format of the HW Receive Queue.
112 hinic_dev - de/constructs the Logical Tx and Rx Queues.
119 Common functions that are used by HW and Logical Device.
/Documentation/driver-api/pm/
Dcpuidle.rst16 Every time one of the logical CPUs in the system (the entities that appear to
21 belongs to. That can be done by making the idle logical CPU stop fetching
44 one of the logical CPUs in the system turns out to be idle. Its role is to
81 (logical) CPU represented by the struct cpuidle_device object pointed
99 Called to make the governor stop handling the (logical) CPU represented
113 Called to select an idle state for the processor holding the (logical)
168 the logical CPUs handled by the given driver.
211 representing the logical CPU running this callback and the
227 is, idle states that can only be asked for if multiple related logical CPUs are
230 asked for if only one logical CPU is idle).
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/Documentation/userspace-api/media/mediactl/
Dmedia-controller-model.rst15 It can correspond to a large variety of logical blocks such as
16 physical hardware devices (CMOS sensor for instance), logical
38 entities form a single logical unit. For example this could represent the
/Documentation/filesystems/ext4/
Dabout.rst25 ext4 divides a storage device into an array of logical blocks both to
31 logical blocks, not raw LBAs, and not 1024-byte blocks. For the sake of
32 convenience, the logical block size will be referred to as
/Documentation/userspace-api/
Disapnp.rst13 This directory allows access to ISA PnP cards and logical devices.
15 a logical device.
/Documentation/filesystems/
Dfiemap.rst18 __u64 fm_start; /* logical offset (inclusive) at
20 __u64 fm_length; /* logical length of mapping which
31 fm_start, and fm_length specify the logical range within the file
33 those on disk - that is, the logical offset of the 1st returned extent
83 __u64 fe_logical; /* logical offset in bytes for the start of
94 for an extents logical offset to start before the request or its logical
226 int fiemap_fill_next_extent(struct fiemap_extent_info *info, u64 logical,
/Documentation/hwmon/
Dsmsc47b397.rst41 HWM Base address can be obtained from Logical Device 8, registers 0x60 (MSB)
126 a. Write the index of the Logical Device Number Configuration Register
128 desired logical device to the DATA PORT.
131 logical device to the INDEX PORT and then write or read the config-
174 Logical Device 8::
181 ; LOGICAL DEVICE 8
187 OUT DX,AL;Point to Logical Device 8
/Documentation/driver-api/media/
Dcec-core.rst18 other through the HDMI connection. The protocol uses logical addresses in the
19 communication. The logical address is strictly connected with the functionality
66 the number of simultaneous logical addresses that this
136 means powering it up in a state where no logical addresses are claimed. The
171 To program a new logical address::
175 If logical_addr == CEC_LOG_ADDR_INVALID then all programmed logical addresses
176 are to be erased. Otherwise the given logical address should be programmed.
177 If the maximum number of available logical addresses is exceeded, then it
178 should return -ENXIO. Once a logical address is programmed the CEC hardware
409 The adapter is fully configured, i.e. all logical addresses have been
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/Documentation/userspace-api/media/v4l/
Dformat.rst38 assigns a logical stream (video data, VBI data etc.) exclusively to one
47 multiple file descriptors which grabbed different logical streams
59 Generally only one logical stream can be assigned to a file descriptor,
62 earlier versions of V4L2. Switching the logical stream or returning into
/Documentation/userspace-api/gpio/
Dgpio-v2-line-set-values-ioctl.rst38 The values set are logical, indicating if the line is to be active or inactive.
39 The ``GPIO_V2_LINE_FLAG_ACTIVE_LOW`` flag controls the mapping between logical
Dgpio-handle-set-line-values-ioctl.rst39 The values set are logical, indicating if the line is to be active or inactive.
40 The ``GPIOHANDLE_REQUEST_ACTIVE_LOW`` flag controls the mapping between logical
/Documentation/driver-api/serial/
Dserial-rs485.rst77 /* Set logical level for RTS pin equal to 1 when sending: */
79 /* or, set logical level for RTS pin equal to 0 when sending: */
82 /* Set logical level for RTS pin equal to 1 after sending: */
84 /* or, set logical level for RTS pin equal to 0 after sending: */

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