tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1driver/acpi/hotkey.c implement:
21. /proc/acpi/hotkey/event_config
3(event based hotkey or event config interface):
4a. add a event based hotkey(event) :
5echo "0:bus::action:method:num:num" > event_config
6
7b. delete a event based hotkey(event):
8echo "1:::::num:num" > event_config
9
10c. modify a event based hotkey(event):
11echo "2:bus::action:method:num:num" > event_config
12
132. /proc/acpi/hotkey/poll_config
14(polling based hotkey or event config interface):
15a.add a polling based hotkey(event) :
16echo "0:bus:method:action:method:num" > poll_config
17this adding command will create a proc file
18/proc/acpi/hotkey/method, which is used to get
19result of polling.
20
21b.delete a polling based hotkey(event):
22echo "1:::::num" > event_config
23
24c.modify a polling based hotkey(event):
25echo "2:bus:method:action:method:num" > poll_config
26
273./proc/acpi/hotkey/action
28(interface to call aml method associated with a
29specific hotkey(event))
30echo "event_num:event_type:event_argument" >
31 /proc/acpi/hotkey/action.
32The result of the execution of this aml method is
33attached to /proc/acpi/hotkey/poll_method, which is dnyamically
34created. Please use command "cat /proc/acpi/hotkey/polling_method"
35to retrieve it.
36
37Note: Use cmdline "acpi_generic_hotkey" to over-ride
38platform-specific with generic driver.