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/Documentation/ABI/testing/
Dsysfs-platform-dfl-fme1 What: /sys/bus/platform/devices/dfl-fme.0/ports_num
5 Description: Read-only. One DFL FPGA device may have more than 1
7 number of ports on the FPGA device when read it.
9 What: /sys/bus/platform/devices/dfl-fme.0/bitstream_id
13 Description: Read-only. It returns Bitstream (static FPGA region)
17 What: /sys/bus/platform/devices/dfl-fme.0/bitstream_metadata
21 Description: Read-only. It returns Bitstream (static FPGA region) meta
25 What: /sys/bus/platform/devices/dfl-fme.0/cache_size
29 Description: Read-only. It returns cache size of this FPGA device.
31 What: /sys/bus/platform/devices/dfl-fme.0/fabric_version
[all …]
Dsysfs-driver-ufs3 Contact: linux-scsi@vger.kernel.org
5 This file contains the auto-hibernate idle timer setting of a
6 UFS host controller. A value of '0' means auto-hibernate is not
11 10-bit values with a power-of-ten multiplier which allows a
22 The file is read only.
31 The file is read only.
40 The file is read only.
50 The file is read only.
59 The file is read only.
69 The file is read only.
[all …]
Dsysfs-platform-dfl-port1 What: /sys/bus/platform/devices/dfl-port.0/id
5 Description: Read-only. It returns id of this port. One DFL FPGA device
9 What: /sys/bus/platform/devices/dfl-port.0/afu_id
13 Description: Read-only. User can program different PR bitstreams to FPGA
18 What: /sys/bus/platform/devices/dfl-port.0/power_state
22 Description: Read-only. It reports the APx (AFU Power) state, different APx
24 returns "0" - Normal / "1" - AP1 / "2" - AP2 / "6" - AP6.
26 What: /sys/bus/platform/devices/dfl-port.0/ap1_event
30 Description: Read-write. Read this file for AP1 (AFU Power State 1) event.
34 What: /sys/bus/platform/devices/dfl-port.0/ap2_event
[all …]
Dsysfs-class-watchdog5 It is a read only file. It contains status of the watchdog
13 It is a read only file. It contains identity string of
20 It is a read/write file. While reading, it gives '1'
32 It is a read only file. It gives active/inactive status of
39 It is a read only file. It contains watchdog device's
47 It is a read only file. It contains value of time left for
55 It is a read only file. It is read to know about current
62 It is a read only file. It specifies the time in seconds before
70 It is a read only file. It shows the pretimeout governors
77 It is a read/write file. When read, the currently assigned
[all …]
Dsysfs-class-switchtec1 switchtec - Microsemi Switchtec PCI Switch Management Endpoint
3 For details on this subsystem look at Documentation/driver-api/switchtec.rst.
6 Date: 05-Jan-2017
14 What: /sys/class/switchtec/switchtec[0-9]+/component_id
15 Date: 05-Jan-2017
19 (read only)
23 What: /sys/class/switchtec/switchtec[0-9]+/component_revision
24 Date: 05-Jan-2017
27 Description: Component revision stored in the hardware (read only)
31 What: /sys/class/switchtec/switchtec[0-9]+/component_vendor
[all …]
Dsysfs-class-cxl11 Contact: linuxppc-dev@lists.ozlabs.org
12 Description: read only
22 Contact: linuxppc-dev@lists.ozlabs.org
23 Description: read/write
29 Users: https://github.com/ibm-capi/libcxl
33 Contact: linuxppc-dev@lists.ozlabs.org
34 Description: read only
39 Users: https://github.com/ibm-capi/libcxl
43 Contact: linuxppc-dev@lists.ozlabs.org
44 Description: read only
[all …]
Dsysfs-block-zram5 The disksize file is read-write and specifies the disk size
14 The initstate file is read-only and shows the initialization
21 The reset file is write-only and allows resetting the
29 The max_comp_streams file is read-write and specifies the
37 The comp_algorithm file is read-write and lets to show
45 The mem_used_max file is write-only and is used to reset
48 "0". Otherwise, you could see -EINVAL.
55 The mem_limit file is write-only and specifies the maximum
64 The compact file is write-only and trigger compaction for
72 The io_stat file is read-only and accumulates device's I/O
[all …]
Dsysfs-devices-lpss_ltr5 The /sys/devices/.../lpss_ltr/ directory is only present for
18 This attribute is read-only. If the device's runtime PM status
19 is not "active", attempts to read from this attribute cause
20 -EAGAIN to be returned.
28 represented as an 8-digit hexadecimal number.
30 This attribute is read-only. If the device's runtime PM status
31 is not "active", attempts to read from this attribute cause
32 -EAGAIN to be returned.
40 as an 8-digit hexadecimal number.
42 This attribute is read-only. If the device's runtime PM status
[all …]
Dsysfs-class-led-flash5 Description: read/write
7 microamperes. The file is created only for the flash LED devices
17 Description: read only
25 Description: read/write
28 of the strobe. The file is created only for the flash LED
35 Description: read only
42 Description: read/write
46 On read 1 means that flash is currently strobing and 0 means
53 Description: read only
55 Flash faults are re-read after strobing the flash. Possible
[all …]
Dsysfs-class-ocxl3 Contact: linuxppc-dev@lists.ozlabs.org
4 Description: read only
6 Reflects what is read in the configuration space of the AFU
10 Contact: linuxppc-dev@lists.ozlabs.org
11 Description: read only
22 Contact: linuxppc-dev@lists.ozlabs.org
23 Description: read only
24 Size of the per-process mmio area, as defined in the
29 Contact: linuxppc-dev@lists.ozlabs.org
30 Description: read only
[all …]
Dsysfs-bus-siox1 What: /sys/bus/siox/devices/siox-X/active
3 Contact: Thorsten Scherer <t.scherer@eckelmann.de>, Uwe Kleine-König <u.kleine-koenig@pengutronix.d…
9 does a push-pull cycle to write and read data from the
14 What: /sys/bus/siox/devices/siox-X/device_add
16 Contact: Thorsten Scherer <t.scherer@eckelmann.de>, Uwe Kleine-König <u.kleine-koenig@pengutronix.d…
18 Write-only file. Write
31 What: /sys/bus/siox/devices/siox-X/device_remove
33 Contact: Thorsten Scherer <t.scherer@eckelmann.de>, Uwe Kleine-König <u.kleine-koenig@pengutronix.d…
35 Write-only file. A single write removes the last device in the siox chain.
37 What: /sys/bus/siox/devices/siox-X/poll_interval_ns
[all …]
Dsysfs-block-dm1 What: /sys/block/dm-<num>/dm/name
4 Contact: dm-devel@redhat.com
5 Description: Device-mapper device name.
6 Read-only string containing mapped device name.
7 Users: util-linux, device-mapper udev rules
9 What: /sys/block/dm-<num>/dm/uuid
12 Contact: dm-devel@redhat.com
13 Description: Device-mapper device UUID.
14 Read-only string containing DM-UUID or empty string
15 if DM-UUID is not set.
[all …]
Dconfigfs-usb-gadget-uvc1 What: /config/usb-gadget/gadget/functions/uvc.name
7 streaming_maxburst 0..15 (ss only)
13 What: /config/usb-gadget/gadget/functions/uvc.name/control
18 All attributes read only:
25 What: /config/usb-gadget/gadget/functions/uvc.name/control/class
30 What: /config/usb-gadget/gadget/functions/uvc.name/control/class/ss
35 What: /config/usb-gadget/gadget/functions/uvc.name/control/class/fs
40 What: /config/usb-gadget/gadget/functions/uvc.name/control/terminal
45 What: /config/usb-gadget/gadget/functions/uvc.name/control/terminal/output
50 What: /config/usb-gadget/gadget/functions/uvc.name/control/terminal/output/default
[all …]
Dsysfs-devices-soc5 The /sys/devices/ directory contains a sub-directory for each
6 System-on-Chip (SoC) device on a running platform. Information
8 functionality is only available if implemented by the platform.
19 Read-only attribute common to all SoCs. Contains the SoC machine
26 Read-only attribute common to all SoCs. Contains SoC family name
57 Read-only attribute supported by most SoCs. Contains the SoC's
64 Read-only attribute supported by most SoCs. In the case of
65 ST-Ericsson's chips this contains the SoC serial number.
77 Read-only attribute supported by most SoCs. Contains the SoC's
84 Read-only attribute supported ST-Ericsson's silicon. Contains the
[all …]
Dsysfs-kernel-fadump3 Contact: linuxppc-dev@lists.ozlabs.org
11 Contact: linuxppc-dev@lists.ozlabs.org
12 Description: read only
19 Contact: linuxppc-dev@lists.ozlabs.org
20 Description: read/write
28 Contact: linuxppc-dev@lists.ozlabs.org
29 Description: write only
30 This is a special sysfs file and only available when
37 Contact: linuxppc-dev@lists.ozlabs.org
38 Description: read only
/Documentation/admin-guide/
Dufs.rst5 mount -t ufs -o ufstype=type_of_ufs device dir
20 default value, supported as read-only
24 supported as read-write
28 supported as read-write
35 supported as read-write
39 supported as read-write
42 used in HP-UX
43 supported as read-only
47 supported as read-only
49 nextstep-cd
[all …]
/Documentation/filesystems/spufs/
Dspufs.rst1 .. SPDX-License-Identifier: GPL-2.0
10 spufs - the SPU file system
26 logical SPU. Users can change permissions on those files, but not actu-
43 The files in spufs mostly follow the standard behavior for regular sys-
44 tem calls like read(2) or write(2), but often support only a subset of
49 All files that support the read(2) operation also support readv(2) and
52 only the st_mode, st_nlink, st_uid and st_gid fields of struct stat
55 All files support the chmod(2)/fchmod(2) and chown(2)/fchown(2) opera-
57 possible operations, e.g. read access on the wbox file.
68 read(2), pread(2), write(2), pwrite(2), lseek(2)
[all …]
/Documentation/ABI/stable/
Dsysfs-driver-mlxreg-io1 What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/asic_health
6 0 - health failed, 2 - health OK, 3 - ASIC in booting state.
8 The files are read only.
10 What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/cpld1_version
11 What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/cpld2_version
18 The files are read only.
20 What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/fan_dir
25 forward direction - relevant bit is set 0;
26 reversed direction - relevant bit is set 1.
28 The files are read only.
[all …]
Dsysfs-bus-firewire1 What: /sys/bus/firewire/devices/fw[0-9]+/
4 Contact: linux1394-devel@lists.sourceforge.net
7 Read-only. Mutable during the node device's lifetime.
12 Binary attribute; an array of host-endian u32.
15 The node's EUI-64 in the bus information block of
20 What: /sys/bus/firewire/devices/fw[0-9]+/units
23 Contact: linux1394-devel@lists.sourceforge.net
26 Read-only. Mutable during the node device's lifetime.
31 Contains space-separated tuples of specifier_id and
39 /dev/fw[0-9]+ character device files
[all …]
/Documentation/driver-api/mmc/
Dmmc-dev-parts.rst15 Read and write access is provided to the two MMC boot partitions. Due to
21 To enable write access to /dev/mmcblkXbootY, disable the forced read-only
26 To re-enable read-only access::
30 The boot partitions can also be locked read only until the next power on,
37 feature has been disabled on the card, the file will be read-only.
/Documentation/filesystems/
Dzonefs.rst1 .. SPDX-License-Identifier: GPL-2.0
4 ZoneFS - Zone filesystem for Zoned block devices
11 as a file. Unlike a regular POSIX-compliant file system with native zoned block
15 of the file (append only writes).
18 than to a full-featured POSIX file system. The goal of zonefs is to simplify
22 example of this approach is the implementation of LSM (log-structured merge)
31 -------------------
38 conventional zones. Any read or write access can be executed, similarly to a
62 by sub-directories. This file structure is built entirely using zone information
63 provided by the device and so does not require any complex on-disk metadata
[all …]
/Documentation/sound/cards/
Dhdspm.rst2 Software Interface ALSA-DSP MADI Driver
5 (translated from German, so no good English ;-),
7 2004 - winfried ritsch
11 the Controls and startup-options are ALSA-Standard and only the
19 ------------------
21 * number of channels -- depends on transmission mode
24 use for a lower number of channels is only resource allocation,
27 scaled. (Only important for low performance boards).
29 * Single Speed -- 1..64 channels
33 receiver, only 56 are transmitted/received over the MADI, but
[all …]
/Documentation/admin-guide/media/
Divtv.rst1 .. SPDX-License-Identifier: GPL-2.0
9 The cx23415 can do both encoding and decoding, the cx23416 can only do MPEG
10 encoding. Currently the only card featuring full decoding support is the
11 Hauppauge PVR-350.
29 --------
32 S-Video/Composite and audio line-in.
41 Additional features for the PVR-350 (CX23415 based)
42 ---------------------------------------------------
51 IMPORTANT: In case of problems first read this page:
55 --------
[all …]
/Documentation/hwmon/
Df71882fg.rst10 Addresses scanned: none, address read from Super I/O config space
18 Addresses scanned: none, address read from Super I/O config space
26 Addresses scanned: none, address read from Super I/O config space
34 Addresses scanned: none, address read from Super I/O config space
42 Addresses scanned: none, address read from Super I/O config space
50 Addresses scanned: none, address read from Super I/O config space
58 Addresses scanned: none, address read from Super I/O config space
66 Addresses scanned: none, address read from Super I/O config space
74 Addresses scanned: none, address read from Super I/O config space
82 Addresses scanned: none, address read from Super I/O config space
[all …]
/Documentation/devicetree/bindings/memory-controllers/
Dti-aemif.txt4 provide a glue-less interface to a variety of asynchronous memory devices like
11 Davinci DM646x - http://www.ti.com/lit/ug/sprueq7c/sprueq7c.pdf
12 OMAP-L138 (DA850) - http://www.ti.com/lit/ug/spruh77a/spruh77a.pdf
13 Kestone - http://www.ti.com/lit/ug/sprugz3a/sprugz3a.pdf
17 - compatible: "ti,davinci-aemif"
18 "ti,keystone-aemif"
19 "ti,da850-aemif"
21 - reg: contains offset/length value for AEMIF control registers
24 - #address-cells: Must be 2. The partition number has to be encoded in the
25 first address cell and it may accept values 0..N-1
[all …]

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