linux/Documentation
Uday M Bhat de3edd47a1 xhci: dbc: Allow users to modify DbC poll interval via sysfs
xhci DbC driver polls the host controller for DbC events at a reduced
rate when DbC is enabled but there are no active data transfers.

Allow users to modify this reduced poll interval via dbc_poll_interval_ms
sysfs entry. Unit is milliseconds and accepted range is 0 to 5000.
Max interval of 5000 ms is selected as it matches the common 5 second
timeout used in usb stack.
Default value is 64 milliseconds.

A long interval is useful when users know there won't be any activity
on systems connected via DbC for long periods, and want to avoid
battery drainage due to unnecessary CPU usage.

Example being Android Debugger (ADB) usage over DbC on ChromeOS systems
running Android Runtime.

[minor changes and rewording -Mathias]

Co-developed-by: Samuel Jacob <samjaco@google.com>
Signed-off-by: Samuel Jacob <samjaco@google.com>
Signed-off-by: Uday M Bhat <uday.m.bhat@intel.com>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Link: https://lore.kernel.org/r/20240626124835.1023046-5-mathias.nyman@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
History 2024-06-27 16:08:05 +02:00
..
ABI xhci: dbc: Allow users to modify DbC poll interval via sysfs 2024-06-27 16:08:05 +02:00
accel docs/accel: correct links to mailing list archives 2024-01-23 14:45:50 -07:00
accounting docs: psi: use correct config name 2023-07-31 09:54:17 -06:00
admin-guide Linux 6.10-rc4 2024-06-18 11:06:17 +02:00
arch Documentation: RISC-V: uabi: Only scalar misaligned loads are supported 2024-05-30 09:42:53 -07:00
block Documentation: block: ioprio: Update schedulers 2024-01-18 08:21:14 -07:00
bpf bpf, docs: Fix the description of 'src' in ALU instructions 2024-05-15 09:34:54 -07:00
cdrom scsi: sr: Fix unintentional arithmetic wraparound 2024-05-15 10:05:24 -04:00
core-api Documentation/core-api: correct reference to SWIOTLB_DYNAMIC 2024-05-27 16:52:09 +02:00
cpu-freq Docs/subsystem-apis: Remove '[The ]Linux' prefixes from titles of listed documents 2023-01-24 15:27:08 -07:00
crypto Another moderately busy cycle for documentation, including: 2024-01-11 19:46:52 -08:00
dev-tools Mainly singleton patches, documented in their respective changelogs. 2024-05-19 14:02:03 -07:00
devicetree dt-bindings: usb: dwc2: switch to unevaluatedProperties 2024-06-27 16:06:26 +02:00
doc-guide doc: fix spelling about ReStructured Text 2024-04-02 10:07:51 -06:00
driver-api Char/Misc and other driver subsystem changes for 6.10-rc1 2024-05-22 12:26:46 -07:00
fault-injection Fixed case issue with 'fault-injection' in documentation 2024-02-21 13:44:21 -07:00
fb fbdev/intelfb: Remove driver 2024-01-12 12:38:37 +01:00
features membarrier: riscv: Provide core serializing command 2024-02-15 08:04:14 -08:00
filesystems 16 hotfixes, 11 of which are cc:stable. 2024-05-25 15:10:33 -07:00
firmware-guide Documentation: firmware-guide: ACPI: Fix namespace typo 2024-04-26 18:58:13 +02:00
firmware_class firmware: revamp firmware documentation 2017-01-11 09:42:59 +01:00
fpga Documentation: use capitalization for chapters and acronyms 2023-05-16 12:49:31 -06:00
gpu Merge tag 'drm-misc-next-2024-04-19' of https://gitlab.freedesktop.org/drm/misc/kernel into drm-next 2024-04-22 12:29:18 +10:00
hid Merge branch 'for-6.10/intel-ish' into for-linus 2024-05-14 13:53:15 +02:00
hwmon hwmon: (emc1403) Add support for EMC1428 and EMC1438. 2024-05-12 09:02:00 -07:00
i2c Documentation: i2c: Document that client auto-detection is a legacy mechanism 2024-03-07 09:42:09 +01:00
iio docs: iio: ad7944: add documentation for chain mode 2024-04-29 20:53:25 +01:00
images docs: add SVG version of the Linux logo 2022-06-01 09:32:45 -06:00
infiniband RDMA/core: Remove FMR device ops 2020-06-02 20:32:54 -03:00
input input: docs: properly format ToC headings 2023-11-17 13:05:26 -07:00
isdn Documentation: isdn: correct spelling 2023-02-10 16:28:13 -08:00
kbuild kconfig: doc: document behavior of 'select' and 'imply' followed by 'if' 2024-06-06 20:05:15 +09:00
kernel-hacking Documentation: Add document for false sharing 2023-04-10 16:46:11 -06:00
leds - New Drivers 2023-07-03 11:26:05 -07:00
litmus-tests Documentation/litmus-tests: Make cmpxchg() tests safe for klitmus 2024-05-06 14:29:21 -07:00
livepatch docs: automarkup: linkify git revs 2023-11-17 13:13:24 -07:00
locking locking/mutex: Clarify that mutex_unlock(), and most other sleeping locks, can still use the lock object after it's unlocked 2024-01-08 09:55:31 +01:00
maintainer docs: maintainer: add existing SoC and netdev profiles 2024-02-05 10:05:57 -07:00
mhi docs: Add documentation for MHI bus 2020-03-19 07:41:04 +01:00
misc-devices dt-bindings: misc: xlnx,sd-fec: convert bindings to yaml 2024-02-04 19:49:51 -06:00
mm The usual shower of singleton fixes and minor series all over MM, 2024-05-19 09:21:03 -07:00
netlabel docs: add some directories to the main documentation index 2019-07-15 11:03:03 -03:00
netlink netdev: add qstat for csum complete 2024-05-30 12:15:56 +02:00
networking Revert "xsk: Document ability to redirect to any socket bound to the same umem" 2024-06-05 09:43:05 +02:00
nvdimm nvdimm: fixes to maintainter-entry-profile 2020-05-25 10:19:19 -06:00
nvme docs, nvme: add a feature and quirk policy document 2022-12-28 05:37:12 -10:00
PCI Merge branch 'pci/enumeration' 2024-05-16 18:14:10 -05:00
pcmcia Documentation: use capitalization for chapters and acronyms 2023-05-16 12:49:31 -06:00
peci Docs/subsystem-apis: Remove '[The ]Linux' prefixes from titles of listed documents 2023-01-24 15:27:08 -07:00
power Documentation: PM: Update platform_pci_wakeup_init() reference 2024-03-27 16:22:19 +01:00
process docs: netdev: Fix typo in Signed-off-by tag 2024-05-27 17:15:22 -07:00
RCU doc: Remove references to arrayRCU.rst 2024-04-09 15:13:05 +02:00
rust RISC-V Patches for the 6.10 Merge Window, Part 1 2024-05-22 09:56:00 -07:00
scheduler Linux 6.9-rc1 2024-03-25 11:32:29 +01:00
scsi scsi: documentation: Clean up scsi_mid_low_api.rst 2024-04-08 22:10:05 -04:00
security Another not-too-busy cycle for documentation, including: 2024-05-13 10:51:53 -07:00
sound Documentation: sound: Fix trailing whitespaces 2024-05-16 16:00:30 +02:00
sphinx docs: kernel_include.py: Cope with docutils 0.21 2024-05-02 09:50:59 -06:00
sphinx-static docs: translations: add translations links when they exist 2023-12-19 14:34:59 -07:00
spi spi: pxa2xx: Drop the stale entry in documentation TOC 2024-05-07 23:53:21 +09:00
staging docs: staging: fix typo in docs 2024-02-08 15:38:21 -07:00
target scsi: target: docs: Remove tcm_mod_builder.py 2023-06-28 22:01:32 -04:00
tee Documentation: tee: Add TS-TEE driver 2024-04-03 14:03:09 +02:00
timers sched/isolation: Prevent boot crash when the boot CPU is nohz_full 2024-04-28 10:07:12 +02:00
tools rtla: Documentation: Fix -t, --trace 2024-05-16 16:52:16 +02:00
trace Char/Misc and other driver subsystem changes for 6.10-rc1 2024-05-22 12:26:46 -07:00
translations pci-v6.10-changes 2024-05-21 10:09:28 -07:00
usb Documentation: usb: Document FunctionFS DMABUF API 2024-02-17 17:00:09 +01:00
userspace-api media: Documentation: v4l: Fix ACTIVE route flag 2024-05-28 08:00:14 +02:00
virt powerpc updates for 6.10 2024-05-17 09:05:46 -07:00
w1 w1: add UART w1 bus driver 2024-02-15 15:02:33 +01:00
watchdog Documentation: Fix typos 2023-08-18 11:29:03 -06:00
wmi platform/x86: wmi: Add MSI WMI Platform driver 2024-04-29 12:06:21 +02:00
.gitignore .gitignore: add SPDX License Identifier 2020-03-25 11:50:48 +01:00
atomic_bitops.txt wait_on_bit: add an acquire memory barrier 2022-08-26 09:30:25 -07:00
atomic_t.txt Documentation/atomic_t: Emphasize that failed atomic operations give no ordering 2024-05-06 14:29:04 -07:00
Changes docs: add back 'Documentation/Changes' file (as symlink) 2016-12-14 16:30:12 -08:00
CodingStyle doc: re-add CodingStyle and SubmittingPatches 2016-10-24 08:12:35 -02:00
conf.py compiler_types: add Endianness-dependent __counted_by_{le,be} 2024-03-28 18:50:47 -07:00
docutils.conf doc-rst: Add missing newline at end of file 2019-06-20 14:16:56 -06:00
dontdiff scripts: remove bin2c 2023-01-26 12:43:33 +09:00
index.rst doc: fix spelling about ReStructured Text 2024-04-02 10:07:51 -06:00
Kconfig Documentation: Avoid duplicate Kconfig inclusion 2023-01-19 13:56:34 -07:00
Makefile Kbuild updates for v6.10 2024-05-18 12:39:20 -07:00
memory-barriers.txt doc: Clarify historical disclaimers in memory-barriers.txt 2023-12-14 01:16:28 +05:30
SubmittingPatches doc: re-add CodingStyle and SubmittingPatches 2016-10-24 08:12:35 -02:00
subsystem-apis.rst docs: Fix subsystem APIs page so ungrouped entries have their own header 2024-01-30 14:02:32 -07:00