Changes in sysfs-class-led

8f2244c9 - leds: class: Don't expose color sysfs entry

Tue, 21 Nov 2023 16:23:59 +0000

leds: class: Don't expose color sysfs entryThe commit c7d80059b086 ("leds: class: Store the color index in structled_classdev") introduced a new sysfs entry "color" that is commonlycreated for the led classdev. Unfortunately, this conflicts with the"color" sysfs entry of already existing drivers such as Logitech HIDor System76 ACPI drivers. The driver probe fails due to the conflict,hence it leads to a severe regression with the missing keyboard, forexample.This patch reverts partially the change in the commit above forremoving the led class color sysfs entries again for addressing theregressions. The newly introduced led_classdev.color field is kept asit's already used by other driver.Fixes: c7d80059b086 ("leds: class: Store the color index in struct led_classdev")Reported-by: Johannes Penßel Closes: https://lore.kernel.org/r/b5646db3-acff-45aa-baef-df3f660486fb@gmail.comLink: https://bugzilla.kernel.org/show_bug.cgi?id=218045Link: https://bugzilla.kernel.org/show_bug.cgi?id=218155Link: https://bugzilla.suse.com/show_bug.cgi?id=1217172Signed-off-by: Takashi Iwai Reviewed-by: Hans de Goede Link: https://lore.kernel.org/r/20231121162359.9332-1-tiwai@suse.deSigned-off-by: Lee Jones List of files: /linux-6.15/Documentation/ABI/testing/sysfs-class-led

c7d80059 - leds: class: Store the color index in struct led_classdev

Fri, 28 Jul 2023 15:37:29 +0000

leds: class: Store the color index in struct led_classdevStore the color of the LED so that it is not lost after the LED'sname has been composed. This color information can then be exposed tothe user space or used by the LED consumer.Signed-off-by: Jean-Jacques Hiblot Link: https://lore.kernel.org/r/20230728153731.3742339-3-jjhiblot@traphandler.comSigned-off-by: Lee Jones List of files: /linux-6.15/Documentation/ABI/testing/sysfs-class-led

edef2fa2 - docs: ABI: unify /sys/class/leds//brightness documentation

Fri, 30 Oct 2020 07:40:53 +0000

docs: ABI: unify /sys/class/leds//brightness documentationThis ABI is defined twice, one for normal leds and anotherone for multicolor ones.Ensure that just one definition is there at ABI.Acked-by: Pavel Machek Acked-by: Jonathan Corbet Signed-off-by: Mauro Carvalho Chehab Link: https://lore.kernel.org/r/1115022e7f172b19ee8610f2ad28cc2f0ca93592.1604042072.git.mchehab+huawei@kernel.orgSigned-off-by: Greg Kroah-Hartman List of files: /linux-6.15/Documentation/ABI/testing/sysfs-class-led

54a19b4d - docs: ABI: cleanup several ABI documents

Fri, 30 Oct 2020 07:40:50 +0000

docs: ABI: cleanup several ABI documentsThere are some ABI documents that, while they don't generateany warnings, they have issues when parsed by get_abi.pl scripton its output result.Address them, in order to provide a clean output.Reviewed-by: Tom Rix # for fpga-managerReviewed-By: Kajol Jain # for sysfs-bus-event_source-devices-hv_gpci and sysfs-bus-event_source-devices-hv_24x7Acked-by: Jonathan Cameron #for IIOAcked-by: Oded Gabbay # for HabanalabsAcked-by: Vaibhav Jain # for sysfs-bus-papr-pmemAcked-by: Cezary Rojewski # for catptAcked-by: Suzuki K Poulose Acked-by: Ilya Dryomov # for rbdAcked-by: Jonathan Corbet Signed-off-by: Mauro Carvalho Chehab Link: https://lore.kernel.org/r/5bc78e5b68ed1e9e39135173857cb2e753be868f.1604042072.git.mchehab+huawei@kernel.orgSigned-off-by: Greg Kroah-Hartman List of files: /linux-6.15/Documentation/ABI/testing/sysfs-class-led

34433332 - docs: ABI: testing: make the files compatible with ReST output

Fri, 30 Oct 2020 07:40:39 +0000

docs: ABI: testing: make the files compatible with ReST outputSome files over there won't parse well by Sphinx.Fix them.Acked-by: Jonathan Cameron # for IIOAcked-by: Fabrice Gasnier Acked-by: Jonathan Corbet Signed-off-by: Mauro Carvalho Chehab Link: https://lore.kernel.org/r/58cf3c2d611e0197fb215652719ebd82ca2658db.1604042072.git.mchehab+huawei@kernel.orgSigned-off-by: Greg Kroah-Hartman List of files: /linux-6.15/Documentation/ABI/testing/sysfs-class-led

b8c5099b - leds: class: Add new optional brightness_hw_changed attribute

Sun, 29 Jan 2017 13:42:52 +0000

leds: class: Add new optional brightness_hw_changed attributeSome LEDs may have their brightness level changed autonomously(outside of kernel control) by hardware / firmware. This commitadds support for an optional brightness_hw_changed attribute tosignal such changes to userspace (if a driver can detect them):What: /sys/class/leds//brightness_hw_changedDate: January 2017KernelVersion: 4.11Description: Last hardware set brightness level for this LED. Some LEDs may be changed autonomously by hardware/firmware. Only LEDs where this happens and the driver can detect this, will have this file. This file supports poll() to detect when the hardware changes the brightness. Reading this file will return the last brightness level set by the hardware, this may be different from the current brightness.Drivers which want to support this, simply add LED_BRIGHT_HW_CHANGED totheir flags field and call led_classdev_notify_brightness_hw_changed()with the hardware set brightness when they detect a hardware / firmwaretriggered brightness change.Signed-off-by: Hans de Goede Acked-by: Pavel Machek Signed-off-by: Jacek Anaszewski List of files: /linux-6.15/Documentation/ABI/testing/sysfs-class-led

0cb8eb30 - leds: class: Add new optional brightness_hw_changed attribute

Sun, 29 Jan 2017 13:42:52 +0000

ed25e9ca - cleanup LED documentation and make it match reality

Mon, 03 Oct 2016 08:10:50 +0000

cleanup LED documentation and make it match realitysysfs-class-led fails to mention some important details. Also fix ledvs LED and english.Signed-off-by: Pavel Machek Signed-off-by: Jacek Anaszewski List of files: /linux-6.15/Documentation/ABI/testing/sysfs-class-led

1f70cb40 - Documentation: move oneshot trigger attributes documentation to ABI

Fri, 26 Aug 2016 14:19:36 +0000

Documentation: move oneshot trigger attributes documentation to ABIDocumentation of sysfs interface should be in ABI in the first place.This moves relevant part of documentation and mentions where to look forit.Fix trivial typos whilst we are at it.Signed-off-by: Rafał Miłecki Signed-off-by: Jacek Anaszewski List of files: /linux-6.15/Documentation/ABI/testing/sysfs-class-led

25985edc - Fix common misspellings

Thu, 31 Mar 2011 01:57:33 +0000

Fix common misspellingsFixes generated by 'codespell' and manually reviewed.Signed-off-by: Lucas De Marchi List of files: /linux-6.15/Documentation/ABI/testing/sysfs-class-led

9f9455ae - leds: add output inversion option to backlight trigger

Thu, 13 Jan 2011 00:59:20 +0000

leds: add output inversion option to backlight triggerExtend the LED backlight tirgger driver with an option that allows forinverting the trigger output polarity.With the invertion option provided, I (ab)use the backlight trigger fordriving a LED that indicates LCD display blank condtition on my AmstradDelta videophone. Since the machine has no dedicated power LED, it wasnot possible to distinguish if the display was blanked, or the machine wasturned off, without touching it.The invert sysfs control is patterned after a similiar function of the GPIOtrigger driver.[akpm@linux-foundation.org: make output match input, tighten input checking][akpm@linux-foundation.org: make output match input, tighten input checking]Signed-off-by: Janusz Krzysztofik Cc: Paul Mundt Acked-by: Richard Purdie Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds List of files: /linux-6.15/Documentation/ABI/testing/sysfs-class-led

5f634c65 - led: document sysfs interface

Fri, 28 Aug 2009 12:56:45 +0000

led: document sysfs interfaceAlso fix Documentation/led-class.txt, the acceptablerange of values for brightness is 0-max_brightness, not 0-255.Cc: Richard Purdie Signed-off-by: Corentin Chary Signed-off-by: Len Brown List of files: /linux-6.15/Documentation/ABI/testing/sysfs-class-led