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[linux/fpc-iii.git] / Documentation / acpi-hotkey.txt
blob38040fa376495d2cf000f47de01f7d1980ff960d
1 driver/acpi/hotkey.c implement:
2 1. /proc/acpi/hotkey/event_config 
3 (event based hotkey or event config interface):
4 a. add a  event based hotkey(event) : 
5 echo "0:bus::action:method:num:num" > event_config
7 b. delete a event based hotkey(event): 
8 echo "1:::::num:num" > event_config
10 c.  modify a event based hotkey(event):    
11 echo "2:bus::action:method:num:num" > event_config
13 2. /proc/acpi/hotkey/poll_config 
14 (polling based hotkey or event config interface):
15 a.add a polling based hotkey(event) :   
16 echo "0:bus:method:action:method:num" > poll_config
17 this adding command will create a proc file 
18 /proc/acpi/hotkey/method, which is used to get 
19 result of polling.
21 b.delete a polling based hotkey(event):         
22 echo "1:::::num" > event_config
24 c.modify a polling based hotkey(event):    
25 echo "2:bus:method:action:method:num" > poll_config
27 3./proc/acpi/hotkey/action 
28 (interface to call aml method associated with a 
29 specific hotkey(event))
30 echo "event_num:event_type:event_argument" > 
31         /proc/acpi/hotkey/action.
32 The result of the execution of this aml method is 
33 attached to /proc/acpi/hotkey/poll_method, which is dynamically
34 created.  Please use command "cat /proc/acpi/hotkey/polling_method" 
35 to retrieve it.
37 Note: Use cmdline "acpi_generic_hotkey" to over-ride
38 platform-specific with generic driver.