From fb9802fa59b196d7f90bb3c2e33c555c6bdc4c54 Mon Sep 17 00:00:00 2001 From: Luming Yu Date: Fri, 18 Mar 2005 18:03:45 -0500 Subject: [ACPI] generic Hot Key support See Documentation/acpi-hotkey.txt Use cmdline "acpi_specific_hotkey" to enable legacy platform specific drivers. http://bugzilla.kernel.org/show_bug.cgi?id=3887 Signed-off-by: Luming Yu Signed-off-by: Len Brown --- Documentation/acpi-hotkey.txt | 35 +++++++++++++++++++++++++++++++++++ 1 file changed, 35 insertions(+) create mode 100644 Documentation/acpi-hotkey.txt (limited to 'Documentation/acpi-hotkey.txt') diff --git a/Documentation/acpi-hotkey.txt b/Documentation/acpi-hotkey.txt new file mode 100644 index 000000000000..4c115a7bb826 --- /dev/null +++ b/Documentation/acpi-hotkey.txt @@ -0,0 +1,35 @@ +driver/acpi/hotkey.c implement: +1. /proc/acpi/hotkey/event_config +(event based hotkey or event config interface): +a. add a event based hotkey(event) : +echo "0:bus::action:method:num:num" > event_config + +b. delete a event based hotkey(event): +echo "1:::::num:num" > event_config + +c. modify a event based hotkey(event): +echo "2:bus::action:method:num:num" > event_config + +2. /proc/acpi/hotkey/poll_config +(polling based hotkey or event config interface): +a.add a polling based hotkey(event) : +echo "0:bus:method:action:method:num" > poll_config +this adding command will create a proc file +/proc/acpi/hotkey/method, which is used to get +result of polling. + +b.delete a polling based hotkey(event): +echo "1:::::num" > event_config + +c.modify a polling based hotkey(event): +echo "2:bus:method:action:method:num" > poll_config + +3./proc/acpi/hotkey/action +(interface to call aml method associated with a +specific hotkey(event)) +echo "event_num:event_type:event_argument" > + /proc/acpi/hotkey/action. +The result of the execution of this aml method is +attached to /proc/acpi/hotkey/poll_method, which is dnyamically +created. Please use command "cat /proc/acpi/hotkey/polling_method" +to retrieve it. -- cgit v1.2.3-59-g8ed1b