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Groups > linux.kernel > #1301069
| From | Pali Rohár <pali.rohar@gmail.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [PATCH] thinkpad_acpi: Add support for keyboard backlight |
| Date | 2016-01-04 21:50 +0100 |
| Message-ID | <qNkeK-8sV-7@gated-at.bofh.it> (permalink) |
| References | <qJj7z-1O0-1@gated-at.bofh.it> <qNjLK-8i4-41@gated-at.bofh.it> <qNjVo-8lm-1@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
[Multipart message — attachments visible in raw view] - view raw
On Monday 04 January 2016 21:23:52 Pali Rohár wrote:
> Looks like userspace already uses /sys/class/leds/*::kbd_backlight
> for keyboard backlight (light under the keyboard). At least other
> drivers uses this name and my KDE desktop recognized
> "dell::kbd_backlight" (from dell-laptop.ko) and
> "tpacpi::kbd_backlight" too.
>
> So really for keyboard backlight use *::kbd_backlight it is already
> handled by existing userspace applications.
upower is one of tool used on linux desktops. See this source code:
http://cgit.freedesktop.org/upower/tree/src/up-kbd-backlight.c
It has function up_kbd_backlight_find() which do:
/* find a led device that is a keyboard device */
while ((filename = g_dir_read_name (dir)) != NULL) {
if (g_strstr_len (filename, -1, "kbd_backlight") != NULL) {
dir_path = g_build_filename ("/sys/class/leds",
filename, NULL);
break;
}
}
--
Pali Rohár
pali.rohar@gmail.com
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Re: [PATCH] thinkpad_acpi: Add support for keyboard backlight Pavel Machek <pavel@ucw.cz> - 2016-01-04 21:20 +0100
Re: [PATCH] thinkpad_acpi: Add support for keyboard backlight Pali Rohár <pali.rohar@gmail.com> - 2016-01-04 21:30 +0100
Re: [PATCH] thinkpad_acpi: Add support for keyboard backlight Pali Rohár <pali.rohar@gmail.com> - 2016-01-04 21:50 +0100
Re: [PATCH] thinkpad_acpi: Add support for keyboard backlight Henrique de Moraes Holschuh <hmh@hmh.eng.br> - 2016-01-09 18:40 +0100
Re: [PATCH] thinkpad_acpi: Add support for keyboard backlight Henrique de Moraes Holschuh <hmh@hmh.eng.br> - 2016-01-09 18:50 +0100
Re: [PATCH] thinkpad_acpi: Add support for keyboard backlight Darren Hart <dvhart@infradead.org> - 2016-01-11 20:10 +0100
Re: [PATCH] thinkpad_acpi: Add support for keyboard backlight Henrique de Moraes Holschuh <hmh@hmh.eng.br> - 2016-01-11 20:30 +0100
Re: [PATCH] thinkpad_acpi: Add support for keyboard backlight Pali Rohár <pali.rohar@gmail.com> - 2016-01-11 21:10 +0100
Re: [PATCH] thinkpad_acpi: Add support for keyboard backlight Johannes Stezenbach <js@sig21.net> - 2016-01-11 22:20 +0100
Re: [PATCH] thinkpad_acpi: Add support for keyboard backlight Henrique de Moraes Holschuh <hmh@hmh.eng.br> - 2016-01-12 17:10 +0100
Re: [ibm-acpi-devel] [PATCH] thinkpad_acpi: Add support for keyboard backlight Yves-Alexis Perez <corsac@debian.org> - 2016-01-12 17:30 +0100
Re: [PATCH] thinkpad_acpi: Add support for keyboard backlight Johannes Stezenbach <js@sig21.net> - 2016-01-12 17:40 +0100
Re: [PATCH] thinkpad_acpi: Add support for keyboard backlight Henrique de Moraes Holschuh <hmh@hmh.eng.br> - 2016-01-12 19:00 +0100
Re: [PATCH] thinkpad_acpi: Add support for keyboard backlight Johannes Stezenbach <js@sig21.net> - 2016-01-12 23:10 +0100
Re: [ibm-acpi-devel] [PATCH] thinkpad_acpi: Add support for keyboard backlight Kevin Locke <kevin@kevinlocke.name> - 2016-01-12 19:20 +0100
Re: [ibm-acpi-devel] [PATCH] thinkpad_acpi: Add support for keyboard backlight Henrique de Moraes Holschuh <hmh@hmh.eng.br> - 2016-01-12 19:30 +0100
Re: [ibm-acpi-devel] [PATCH] thinkpad_acpi: Add support for keyboard backlight Kevin Locke <kevin@kevinlocke.name> - 2016-01-12 19:40 +0100
Re: [PATCH] thinkpad_acpi: Add support for keyboard backlight Henrique de Moraes Holschuh <hmh@hmh.eng.br> - 2016-01-12 17:10 +0100
Re: [PATCH] thinkpad_acpi: Add support for keyboard backlight Pavel Machek <pavel@ucw.cz> - 2016-01-12 23:00 +0100
Re: [PATCH] thinkpad_acpi: Add support for keyboard backlight Pali Rohár <pali.rohar@gmail.com> - 2016-01-13 10:00 +0100
Re: [PATCH] thinkpad_acpi: Add support for keyboard backlight Pavel Machek <pavel@ucw.cz> - 2016-01-13 20:10 +0100
Re: [PATCH] thinkpad_acpi: Add support for keyboard backlight Pavel Machek <pavel@ucw.cz> - 2016-01-13 20:20 +0100
Re: [ibm-acpi-devel] [PATCH] thinkpad_acpi: Add support for keyboard backlight Yves-Alexis Perez <corsac@debian.org> - 2016-01-11 23:50 +0100
Re: [PATCH] thinkpad_acpi: Add support for keyboard backlight Darren Hart <dvhart@infradead.org> - 2016-01-12 18:00 +0100
Re: [PATCH] thinkpad_acpi: Add support for keyboard backlight Henrique de Moraes Holschuh <hmh@hmh.eng.br> - 2016-01-12 19:00 +0100
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