diff options
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/ABI/stable/sysfs-class-backlight | 36 | ||||
| -rw-r--r-- | Documentation/ABI/testing/sysfs-class-lcd | 23 | ||||
| -rw-r--r-- | Documentation/ABI/testing/sysfs-class-led | 28 | ||||
| -rw-r--r-- | Documentation/ABI/testing/sysfs-platform-asus-laptop | 52 | ||||
| -rw-r--r-- | Documentation/ABI/testing/sysfs-platform-eeepc-laptop | 50 | ||||
| -rw-r--r-- | Documentation/laptops/asus-laptop.txt | 258 | ||||
| -rw-r--r-- | Documentation/leds-class.txt | 9 |
7 files changed, 452 insertions, 4 deletions
diff --git a/Documentation/ABI/stable/sysfs-class-backlight b/Documentation/ABI/stable/sysfs-class-backlight new file mode 100644 index 000000000000..4d637e1c4ff7 --- /dev/null +++ b/Documentation/ABI/stable/sysfs-class-backlight @@ -0,0 +1,36 @@ +What: /sys/class/backlight/<backlight>/bl_power +Date: April 2005 +KernelVersion: 2.6.12 +Contact: Richard Purdie <rpurdie@rpsys.net> +Description: + Control BACKLIGHT power, values are FB_BLANK_* from fb.h + - FB_BLANK_UNBLANK (0) : power on. + - FB_BLANK_POWERDOWN (4) : power off +Users: HAL + +What: /sys/class/backlight/<backlight>/brightness +Date: April 2005 +KernelVersion: 2.6.12 +Contact: Richard Purdie <rpurdie@rpsys.net> +Description: + Control the brightness for this <backlight>. Values + are between 0 and max_brightness. This file will also + show the brightness level stored in the driver, which + may not be the actual brightness (see actual_brightness). +Users: HAL + +What: /sys/class/backlight/<backlight>/actual_brightness +Date: March 2006 +KernelVersion: 2.6.17 +Contact: Richard Purdie <rpurdie@rpsys.net> +Description: + Show the actual brightness by querying the hardware. +Users: HAL + +What: /sys/class/backlight/<backlight>/max_brightness +Date: April 2005 +KernelVersion: 2.6.12 +Contact: Richard Purdie <rpurdie@rpsys.net> +Description: + Maximum brightness for <backlight>. +Users: HAL diff --git a/Documentation/ABI/testing/sysfs-class-lcd b/Documentation/ABI/testing/sysfs-class-lcd new file mode 100644 index 000000000000..35906bf7aa70 --- /dev/null +++ b/Documentation/ABI/testing/sysfs-class-lcd @@ -0,0 +1,23 @@ +What: /sys/class/lcd/<lcd>/lcd_power +Date: April 2005 +KernelVersion: 2.6.12 +Contact: Richard Purdie <rpurdie@rpsys.net> +Description: + Control LCD power, values are FB_BLANK_* from fb.h + - FB_BLANK_UNBLANK (0) : power on. + - FB_BLANK_POWERDOWN (4) : power off + +What: /sys/class/lcd/<lcd>/contrast +Date: April 2005 +KernelVersion: 2.6.12 +Contact: Richard Purdie <rpurdie@rpsys.net> +Description: + Current contrast of this LCD device. Value is between 0 and + /sys/class/lcd/<lcd>/max_contrast. + +What: /sys/class/lcd/<lcd>/max_contrast +Date: April 2005 +KernelVersion: 2.6.12 +Contact: Richard Purdie <rpurdie@rpsys.net> +Description: + Maximum contrast for this LCD device. diff --git a/Documentation/ABI/testing/sysfs-class-led b/Documentation/ABI/testing/sysfs-class-led new file mode 100644 index 000000000000..9e4541d71cb6 --- /dev/null +++ b/Documentation/ABI/testing/sysfs-class-led @@ -0,0 +1,28 @@ +What: /sys/class/leds/<led>/brightness +Date: March 2006 +KernelVersion: 2.6.17 +Contact: Richard Purdie <rpurdie@rpsys.net> +Description: + Set the brightness of the LED. Most LEDs don't + have hardware brightness support so will just be turned on for + non-zero brightness settings. The value is between 0 and + /sys/class/leds/<led>/max_brightness. + +What: /sys/class/leds/<led>/max_brightness +Date: March 2006 +KernelVersion: 2.6.17 +Contact: Richard Purdie <rpurdie@rpsys.net> +Description: + Maximum brightness level for this led, default is 255 (LED_FULL). + +What: /sys/class/leds/<led>/trigger +Date: March 2006 +KernelVersion: 2.6.17 +Contact: Richard Purdie <rpurdie@rpsys.net> +Description: + Set the trigger for this LED. A trigger is a kernel based source + of led events. + You can change triggers in a similar manner to the way an IO + scheduler is chosen. Trigger specific parameters can appear in + /sys/class/leds/<led> once a given trigger is selected. + diff --git a/Documentation/ABI/testing/sysfs-platform-asus-laptop b/Documentation/ABI/testing/sysfs-platform-asus-laptop new file mode 100644 index 000000000000..a1cb660c50cf --- /dev/null +++ b/Documentation/ABI/testing/sysfs-platform-asus-laptop @@ -0,0 +1,52 @@ +What: /sys/devices/platform/asus-laptop/display +Date: January 2007 +KernelVersion: 2.6.20 +Contact: "Corentin Chary" <corentincj@iksaif.net> +Description: + This file allows display switching. The value + is composed by 4 bits and defined as follow: + 4321 + |||`- LCD + ||`-- CRT + |`--- TV + `---- DVI + Ex: - 0 (0000b) means no display + - 3 (0011b) CRT+LCD. + +What: /sys/devices/platform/asus-laptop/gps +Date: January 2007 +KernelVersion: 2.6.20 +Contact: "Corentin Chary" <corentincj@iksaif.net> +Description: + Control the gps device. 1 means on, 0 means off. +Users: Lapsus + +What: /sys/devices/platform/asus-laptop/ledd +Date: January 2007 +KernelVersion: 2.6.20 +Contact: "Corentin Chary" <corentincj@iksaif.net> +Description: + Some models like the W1N have a LED display that can be + used to display several informations. + To control the LED display, use the following : + echo 0x0T000DDD > /sys/devices/platform/asus-laptop/ + where T control the 3 letters display, and DDD the 3 digits display. + The DDD table can be found in Documentation/laptops/asus-laptop.txt + +What: /sys/devices/platform/asus-laptop/bluetooth +Date: January 2007 +KernelVersion: 2.6.20 +Contact: "Corentin Chary" <corentincj@iksaif.net> +Description: + Control the bluetooth device. 1 means on, 0 means off. + This may control the led, the device or both. +Users: Lapsus + +What: /sys/devices/platform/asus-laptop/wlan +Date: January 2007 +KernelVersion: 2.6.20 +Contact: "Corentin Chary" <corentincj@iksaif.net> +Description: + Control the bluetooth device. 1 means on, 0 means off. + This may control the led, the device or both. +Users: Lapsus diff --git a/Documentation/ABI/testing/sysfs-platform-eeepc-laptop b/Documentation/ABI/testing/sysfs-platform-eeepc-laptop new file mode 100644 index 000000000000..7445dfb321b5 --- /dev/null +++ b/Documentation/ABI/testing/sysfs-platform-eeepc-laptop @@ -0,0 +1,50 @@ +What: /sys/devices/platform/eeepc-laptop/disp +Date: May 2008 +KernelVersion: 2.6.26 +Contact: "Corentin Chary" <corentincj@iksaif.net> +Description: + This file allows display switching. + - 1 = LCD + - 2 = CRT + - 3 = LCD+CRT + If you run X11, you should use xrandr instead. + +What: /sys/devices/platform/eeepc-laptop/camera +Date: May 2008 +KernelVersion: 2.6.26 +Contact: "Corentin Chary" <corentincj@iksaif.net> +Description: + Control the camera. 1 means on, 0 means off. + +What: /sys/devices/platform/eeepc-laptop/cardr +Date: May 2008 +KernelVersion: 2.6.26 +Contact: "Corentin Chary" <corentincj@iksaif.net> +Description: + Control the card reader. 1 means on, 0 means off. + +What: /sys/devices/platform/eeepc-laptop/cpufv +Date: Jun 2009 +KernelVersion: 2.6.31 +Contact: "Corentin Chary" <corentincj@iksaif.net> +Description: + Change CPU clock configuration. + On the Eee PC 1000H there are three available clock configuration: + * 0 -> Super Performance Mode + * 1 -> High Performance Mode + * 2 -> Power Saving Mode + On Eee PC 701 there is only 2 available clock configurations. + Available configuration are listed in available_cpufv file. + Reading this file will show the raw hexadecimal value which + is defined as follow: + | 8 bit | 8 bit | + | `---- Current mode + `------------ Availables modes + For example, 0x301 means: mode 1 selected, 3 available modes. + +What: /sys/devices/platform/eeepc-laptop/available_cpufv +Date: Jun 2009 +KernelVersion: 2.6.31 +Contact: "Corentin Chary" <corentincj@iksaif.net> +Description: + List available cpufv modes. diff --git a/Documentation/laptops/asus-laptop.txt b/Documentation/laptops/asus-laptop.txt new file mode 100644 index 000000000000..c1c5be84e4b1 --- /dev/null +++ b/Documentation/laptops/asus-laptop.txt @@ -0,0 +1,258 @@ +Asus Laptop Extras + +Version 0.1 +August 6, 2009 + +Corentin Chary <corentincj@iksaif.net> +http://acpi4asus.sf.net/ + + This driver provides support for extra features of ACPI-compatible ASUS laptops. + It may also support some MEDION, JVC or VICTOR laptops (such as MEDION 9675 or + VICTOR XP7210 for example). It makes all the extra buttons generate standard + ACPI events that go through /proc/acpi/events and input events (like keyboards). + On some models adds support for changing the display brightness and output, + switching the LCD backlight on and off, and most importantly, allows you to + blink those fancy LEDs intended for reporting mail and wireless status. + +This driver supercedes the old asus_acpi driver. + +Requirements +------------ + + Kernel 2.6.X sources, configured for your computer, with ACPI support. + You also need CONFIG_INPUT and CONFIG_ACPI. + +Status +------ + + The features currently supported are the following (see below for + detailed description): + + - Fn key combinations + - Bluetooth enable and disable + - Wlan enable and disable + - GPS enable and disable + - Video output switching + - Ambient Light Sensor on and off + - LED control + - LED Display control + - LCD brightness control + - LCD on and off + + A compatibility table by model and feature is maintained on the web + site, http://acpi4asus.sf.net/. + +Usage +----- + + Try "modprobe asus_acpi". Check your dmesg (simply type dmesg). You should + see some lines like this : + + Asus Laptop Extras version 0.42 + L2D model detected. + + If it is not the output you have on your laptop, send it (and the laptop's + DSDT) to me. + + That's all, now, all the events generated by the hotkeys of your laptop + should be reported in your /proc/acpi/event entry. You can check with + "acpi_listen". + + Hotkeys are also reported as input keys (like keyboards) you can check + which key are supported using "xev" under X11. + + You can get informations on the version of your DSDT table by reading the + /sys/devices/platform/asus-laptop/infos entry. If you have a question or a + bug report to do, please include the output of this entry. + +LEDs +---- + + You can modify LEDs be echoing values to /sys/class/leds/asus::*/brightness : + echo 1 > /sys/class/leds/asus::mail/brightness + will switch the mail LED on. + You can also know if they are on/off by reading their content and use + kernel triggers like ide-disk or heartbeat. + +Backlight +--------- + + You can control lcd backlight power and brightness with + /sys/class/backlight/asus-laptop/. Brightness Values are between 0 and 15. + +Wireless devices +--------------- + + You can turn the internal Bluetooth adapter on/off with the bluetooth entry + (only on models with Bluetooth). This usually controls the associated LED. + Same for Wlan adapter. + +Display switching +----------------- + + Note: the display switching code is currently considered EXPERIMENTAL. + + Switching works for the following models: + L3800C + A2500H + L5800C + M5200N + W1000N (albeit with some glitches) + M6700R + A6JC + F3J + + Switching doesn't work for the following: + M3700N + L2X00D (locks the laptop under certain conditions) + + To switch the displays, echo values from 0 to 15 to + /sys/devices/platform/asus-laptop/display. The significance of those values + is as follows: + + +-------+-----+-----+-----+-----+-----+ + | Bin | Val | DVI | TV | CRT | LCD | + +-------+-----+-----+-----+-----+-----+ + + 0000 + 0 + + + + + + +-------+-----+-----+-----+-----+-----+ + + 0001 + 1 + + + + X + + +-------+-----+-----+-----+-----+-----+ + + 0010 + 2 + + + X + + + +-------+-----+-----+-----+-----+-----+ + + 0011 + 3 + + + X + X + + +-------+-----+-----+-----+-----+-----+ + + 0100 + 4 + + X + + + + +-------+-----+-----+-----+-----+-----+ + + 0101 + 5 + + X + + X + + +-------+-----+-----+-----+-----+-----+ + + 0110 + 6 + + X + X + + + +-------+-----+-----+-----+-----+-----+ + + 0111 + 7 + + X + X + X + + +-------+-----+-----+-----+-----+-----+ + + 1000 + 8 + X + + + + + +-------+-----+-----+-----+-----+-----+ + + 1001 + 9 + X + + + X + + +-------+-----+-----+-----+-----+-----+ + + 1010 + 10 + X + + X + + + +-------+-----+-----+-----+-----+-----+ + + 1011 + 11 + X + + X + X + + +-------+-----+-----+-----+-----+-----+ + + 1100 + 12 + X + X + + + + +-------+-----+-----+-----+-----+-----+ + + 1101 + 13 + X + X + + X + + +-------+-----+-----+-----+-----+-----+ + + 1110 + 14 + X + X + X + + + +-------+-----+-----+-----+-----+-----+ + + 1111 + 15 + X + X + X + X + + +-------+-----+-----+-----+-----+-----+ + + In most cases, the appropriate displays must be plugged in for the above + combinations to work. TV-Out may need to be initialized at boot time. + + Debugging: + 1) Check whether the Fn+F8 key: + a) does not lock the laptop (try disabling CONFIG_X86_UP_APIC or boot with + noapic / nolapic if it does) + b) generates events (0x6n, where n is the value corresponding to the + configuration above) + c) actually works + Record the disp value at every configuration. + 2) Echo values from 0 to 15 to /sys/devices/platform/asus-laptop/display. + Record its value, note any change. If nothing changes, try a broader range, + up to 65535. + 3) Send ANY output (both positive and negative reports are needed, unless your + machine is already listed above) to the acpi4asus-user mailing list. + + Note: on some machines (e.g. L3C), after the module has been loaded, only 0x6n + events are generated and no actual switching occurs. In such a case, a line + like: + + echo $((10#$arg-60)) > /sys/devices/platform/asus-laptop/display + + will usually do the trick ($arg is the 0000006n-like event passed to acpid). + + Note: there is currently no reliable way to read display status on xxN + (Centrino) models. + +LED display +----------- + + Some models like the W1N have a LED display that can be used to display + several informations. + + LED display works for the following models: + W1000N + W1J + + To control the LED display, use the following : + + echo 0x0T000DDD > /sys/devices/platform/asus-laptop/ + + where T control the 3 letters display, and DDD the 3 digits display, + according to the tables below. + + DDD (digits) + 000 to 999 = display digits + AAA = --- + BBB to FFF = turn-off + + T (type) + 0 = off + 1 = dvd + 2 = vcd + 3 = mp3 + 4 = cd + 5 = tv + 6 = cpu + 7 = vol + + For example "echo 0x01000001 >/sys/devices/platform/asus-laptop/ledd" + would display "DVD001". + +Driver options: +--------------- + + Options can be passed to the asus-laptop driver using the standard + module argument syntax (<param>=<value> when passing the option to the + module or asus-laptop.<param>=<value> on the kernel boot line when + asus-laptop is statically linked into the kernel). + + wapf: WAPF defines the behavior of the Fn+Fx wlan key + The significance of values is yet to be found, but + most of the time: + - 0x0 should do nothing + - 0x1 should allow to control the device with Fn+Fx key. + - 0x4 should send an ACPI event (0x88) while pressing the Fn+Fx key + - 0x5 like 0x1 or 0x4 + + The default value is 0x1. + +Unsupported models +------------------ + + These models will never be supported by this module, as they use a completely + different mechanism to handle LEDs and extra stuff (meaning we have no clue + how it works): + + - ASUS A1300 (A1B), A1370D + - ASUS L7300G + - ASUS L8400 + +Patches, Errors, Questions: +-------------------------- + + I appreciate any success or failure + reports, especially if they add to or correct the compatibility table. + Please include the following information in your report: + + - Asus model name + - a copy of your ACPI tables, using the "acpidump" utility + - a copy of /sys/devices/platform/asus-laptop/infos + - which driver features work and which don't + - the observed behavior of non-working features + + Any other comments or patches are also more than welcome. + + acpi4asus-user@lists.sourceforge.net + http://sourceforge.net/projects/acpi4asus + diff --git a/Documentation/leds-class.txt b/Documentation/leds-class.txt index 6399557cdab3..8fd5ca2ae32d 100644 --- a/Documentation/leds-class.txt +++ b/Documentation/leds-class.txt @@ -1,3 +1,4 @@ + LED handling under Linux ======================== @@ -5,10 +6,10 @@ If you're reading this and thinking about keyboard leds, these are handled by the input subsystem and the led class is *not* needed. In its simplest form, the LED class just allows control of LEDs from -userspace. LEDs appear in /sys/class/leds/. The brightness file will -set the brightness of the LED (taking a value 0-255). Most LEDs don't -have hardware brightness support so will just be turned on for non-zero -brightness settings. +userspace. LEDs appear in /sys/class/leds/. The maximum brightness of the +LED is defined in max_brightness file. The brightness file will set the brightness +of the LED (taking a value 0-max_brightness). Most LEDs don't have hardware +brightness support so will just be turned on for non-zero brightness settings. The class also introduces the optional concept of an LED trigger. A trigger is a kernel based source of led events. Triggers can either be simple or |