kernel/linux.git/Documentation/admin-guide/laptops, branch v6.19.11

docs: alienware-wmi: fix typo

2026-01-05T14:29:00+00:00

Fix a typo in the manual fan control description ("aproximate" -> "approximate"). Signed-off-by: Akiyoshi Kurita Reviewed-by: Bagas Sanjaya Reviewed-by: Kurt Borja Link: https://patch.msgid.link/20251230213431.656106-1-weibu@redadmin.org Signed-off-by: Ilpo Järvinen

Documentation: laptops: Add documentation for uniwill laptops

2025-11-10T10:04:37+00:00

Add documentation for admins regarding Uniwill laptops. This should help them to setup the uniwill-laptop driver, which sadly cannot be loaded automatically. Reported-by: cyear Closes: https://github.com/lm-sensors/lm-sensors/issues/508 Closes: https://github.com/Wer-Wolf/uniwill-laptop/issues/3 Signed-off-by: Armin Wolf Link: https://patch.msgid.link/20251102172942.17879-3-W_Armin@gmx.de Reviewed-by: Ilpo Järvinen Signed-off-by: Ilpo Järvinen

Merge tag 'docs-6.18' of git://git.lwn.net/linux

2025-10-04T00:16:13+00:00

Pull documentation updates from Jonathan Corbet: "It has been a relatively busy cycle in docsland, with changes all over: - Bring the kernel memory-model docs into the Sphinx build in the "literal include" mode. - Lots of build-infrastructure work, further cleaning up long-term kernel-doc technical debt. The sphinx-pre-install tool has been converted to Python and updated for current systems. - A new tool to detect when documents have been moved and generate HTML redirects; this can be used on kernel.org (or any other site hosting the rendered docs) to avoid breaking links. - Automated processing of the YAML files describing the netlink protocol. - A significant update of the maintainer's PGP guide. ... and a seemingly endless series of typo fixes, build-problem fixes, etc" * tag 'docs-6.18' of git://git.lwn.net/linux: (193 commits) Documentation/features: Update feature lists for 6.17-rc7 docs: remove cdomain.py Documentation/process: submitting-patches: fix typo in "were do" docs: dev-tools/lkmm: Fix typo of missing file extension Documentation: trace: histogram: Convert ftrace docs cross-reference Documentation: trace: histogram-design: Wrap introductory note in note:: directive Documentation: trace: historgram-design: Separate sched_waking histogram section heading and the following diagram Documentation: trace: histogram-design: Trim trailing vertices in diagram explanation text Documentation: trace: histogram: Fix histogram trigger subsection number order docs: driver-api: fix spelling of "buses". Documentation: fbcon: Use admonition directives Documentation: fbcon: Reindent 8th step of attach/detach/unload Documentation: fbcon: Add boot options and attach/detach/unload section headings docs: filesystems: sysfs: add remaining top level sysfs directory descriptions docs: filesystems: sysfs: clarify symlink destinations in dev and bus/devices descriptions docs: filesystems: sysfs: remove top level sysfs net directory docs: maintainer: Fix ambiguous subheading formatting docs: kdoc: a few more dump_typedef() tweaks docs: kdoc: remove redundant comment stripping in dump_typedef() docs: kdoc: remove some dead code in dump_typedef() ...

platform/x86: lg-laptop: Fix WMAB call in fan_mode_store()

2025-09-25T09:21:43+00:00

When WMAB is called to set the fan mode, the new mode is read from either bits 0-1 or bits 4-5 (depending on the value of some other EC register). Thus when WMAB is called with bits 4-5 zeroed and called again with bits 0-1 zeroed, the second call undoes the effect of the first call. This causes writes to /sys/devices/platform/lg-laptop/fan_mode to have no effect (and causes reads to always report a status of zero). Fix this by calling WMAB once, with the mode set in bits 0,1 and 4,5. When the fan mode is returned from WMAB it always has this form, so there is no need to preserve the other bits. As a bonus, the driver now supports the "Performance" fan mode seen in the LG-provided Windows control app, which provides less aggressive CPU throttling but louder fan noise and shorter battery life. Also, correct the documentation to reflect that 0 corresponds to the default mode (what the Windows app calls "Optimal") and 1 corresponds to the silent mode. Fixes: dbf0c5a6b1f8 ("platform/x86: Add LG Gram laptop special features driver") Link: https://bugzilla.kernel.org/show_bug.cgi?id=204913#c4 Signed-off-by: Daniel Lee Link: https://patch.msgid.link/MN2PR06MB55989CB10E91C8DA00EE868DDC1CA@MN2PR06MB5598.namprd06.prod.outlook.com Reviewed-by: Ilpo Järvinen Signed-off-by: Ilpo Järvinen

docs: Remove remainders of reiserfs

2025-08-18T16:45:43+00:00

Reiserfs has been removed in 6.13, there are still some mentions in the documentation about it and the tools. Remove those that don't seem relevant anymore but keep references to reiserfs' r5 hash used by some code. There's one change in a script scripts/selinux/install_policy.sh but it does not seem to be relevant either. Signed-off-by: David Sterba Acked-by: Paul Moore Signed-off-by: Jonathan Corbet Link: https://lore.kernel.org/r/20250813100053.1291961-1-dsterba@suse.com

Documentation: Fix admin-guide typos

2025-08-18T16:31:19+00:00

Fix typos. Signed-off-by: Bjorn Helgaas Reviewed-by: Randy Dunlap Signed-off-by: Jonathan Corbet Link: https://lore.kernel.org/r/20250813200526.290420-4-helgaas@kernel.org

Documentation: admin-guide: laptops: Add documentation for alienware-wmi

2025-04-11T10:10:16+00:00

Add driver admin-guide documentation for the alienware-wmi driver. Reviewed-by: Armin Wolf Signed-off-by: Kurt Borja Link: https://lore.kernel.org/r/20250329-hwm-v7-11-a14ea39d8a94@gmail.com Reviewed-by: Ilpo Järvinen Signed-off-by: Ilpo Järvinen

platform/x86: samsung-galaxybook: Add samsung-galaxybook driver

2025-02-07T11:57:03+00:00

Add a new driver for Samsung Galaxy Book series notebook devices with the following features: - Keyboard backlight control - Battery hook for installing power supply extension to add charge control end threshold - Controller for Samsung's performance modes using the platform profile interface - Adds firmware-attributes to control various system features - Handles various hotkeys and notifications Signed-off-by: Joshua Grisham Reviewed-by: Thomas Weißschuh Reviewed-by: Armin Wolf Link: https://lore.kernel.org/r/20250201105450.193450-1-josh@joshuagrisham.com Reviewed-by: Ilpo Järvinen Signed-off-by: Ilpo Järvinen

platform/x86: thinkpad-acpi: Add support for hotkey 0x1401

2024-12-29T14:55:10+00:00

F8 mode key on Lenovo 2025 platforms use a different key code. Adding support for the new keycode 0x1401. Tested on X1 Carbon Gen 13 and X1 2-in-1 Gen 10. Signed-off-by: Vishnu Sankar Reviewed-by: Mark Pearson Link: https://lore.kernel.org/r/20241227231840.21334-1-vishnuocv@gmail.com Reviewed-by: Ilpo Järvinen Signed-off-by: Ilpo Järvinen

platform/x86: Support for mode FN key

2024-01-24T10:40:55+00:00

New Thinkpads have added a 'Mode' Function key that on Windows allows you to choose the active profile (low-power, balanced, performance) Added suppoort for this hotkey (F8), and have it cycle through the options available. Tested on X1 Carbon G12. Signed-off-by: Mark Pearson Reviewed-by: Hans de Goede Link: https://lore.kernel.org/r/20240120232949.317337-1-mpearson-lenovo@squebb.ca Reviewed-by: Ilpo Järvinen Signed-off-by: Ilpo Järvinen