Background: Fujitsu is releasing currently small desktop systems like the ESPRIMO Q510 that have no direct accessible eject button for the optical drive. http://www.fujitsu.com/fts/products/computing/pc/desktops/all-round/esprimo-q510/index.html Instead of an eject button on the drive the system has a button on the mainboard that will send a notify event to the assigned device using the following ACPI code: Scope(\_GPE) { Method(_L15, 0) // ODD Eject GPIO handler { Notify(\_SB.ODDE, 0x80) // Notify a ODD Eject Button event to the OS } } //Scope(\_GPE) Scope(\_SB) { // // Direct Application Launch Button definition used for Windows Vista, Windows 7, Linux ... // Device(ODDE) // Eject Button Device { Name(_HID, EISAID("PNP0C32")) // HID ACPI button device Name(_UID, 1) // Unique instance # of that device Name(_STA, 0x0F) // Device is working properly Method(GHID, 0) // Button "role" method { Return(Buffer(){1}) // Application Launch Button role } } Matthew Garrett advised me that there is a quickstart driver in staging that was designed to handle the PNP0C32 devices. I had a look at it and it needed patching for my purpose because - the driver only reports the pressed button on wakeup events, but in my case it should report the pressure of the "Optical Disc Drive Eject" button during runtime. - The driver was generating character input events when I pressed the button during runtime, resulting in the funny question of the bash open if I want to see all possible completions. So I made a minor change to this driver to handle my "ODDE" button event as I want it and to be minimal intrusive to the remaining functionality. Of course this needs a small "daemon like skript" that polls the pressed_button file frequently and initiates the eject command if the button is pressed. This one (modified from the Sourceforge quickstart download) works: #!/bin/bash # # Sample application launcher. # Angelo Arrifano <miknix@xxxxxxxxx> # http://quickstart.sourceforge.net # # Put this script on ~/.config/autostart. # # Add your button actions here LAUNCH["ODDE"]="eject /dev/sr0" # The sysfs file telling which button was pressed PRESSEDFILE="/sys/devices/platform/quickstart/pressed_button" if [[ ! -e "$PRESSEDFILE" ]]; then exit 1 fi while (true) do PRESSEDBUTTON="$(cat "$PRESSEDFILE")" if [[ "$PRESSEDBUTTON" != "none" ]]; then ${LAUNCH[$PRESSEDBUTTON]}; echo -n "none" > "$PRESSEDFILE" fi sleep 1; done # End of script Signed-off-by: Rainer Koenig <Rainer.Koenig@xxxxxxxxxxxxxx> --- --- upstream/drivers/staging/quickstart/quickstart.c 2012-03-07 14:32:37.000000000 +0100 +++ new/drivers/staging/quickstart/quickstart.c 2012-03-07 14:50:36.000000000 +0100 @@ -223,10 +223,16 @@ if (event == QUICKSTART_EVENT_WAKE) quickstart_data.pressed = quickstart->btn; else if (event == QUICKSTART_EVENT_RUNTIME) { - input_report_key(quickstart_input, quickstart->btn->id, 1); - input_sync(quickstart_input); - input_report_key(quickstart_input, quickstart->btn->id, 0); - input_sync(quickstart_input); + if (strncasecmp(quickstart->btn->name, "ODDE", 4) == 0) { + /* ODDE is Optical Disc Drive Eject */ + quickstart_data.pressed = quickstart->btn; + } + else { + input_report_key(quickstart_input, quickstart->btn->id, 1); + input_sync(quickstart_input); + input_report_key(quickstart_input, quickstart->btn->id, 0); + input_sync(quickstart_input); + } } return; } -- Dipl.-Inf. (FH) Rainer Koenig Project Manager Linux Clients Dept. PDG WPS R&D SW OSE Fujitsu Technology Solutions Bürgermeister-Ullrich-Str. 100 86199 Augsburg Germany Telephone: +49-821-804-3321 Telefax: +49-821-804-2131 Mail: mailto:Rainer.Koenig@xxxxxxxxxxxxxx Internet ts.fujtsu.com Company Details ts.fujitsu.com/imprint.html -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
