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widlokm
Tux's lil' helper
Joined: 22 Sep 2007
Posts: 75
Location: Poland
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 Posted: Wed May 24, 2017 6:48 pm Post subject: [SOLVED] Numeric acpi events - how to catch them? |
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Hello,
I'm using Lenovo T400 laptop with THINKPAD_ACPI kernel module enabled. This driver can pass to user space acpi events related to battery/hardware state of the laptop like:
(taken from linux/Documentation/laptops/thinkpad-acpi.txt):
0x2313 ALARM: System is waking up from suspend because battery is near empty
The question is: How to catch this even with acpid?
For typical events like buttons the line in /etc/acpi/events/button-something file is:
| Code: | event=button/sleep
action=/etc/acpi/button_sleep.sh
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How to create event and action for this battery alarm? Should it be something like:
| Code: | event=0x2313
action=/etc/acpi/battery_alarm.sh
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Thanks in advance
Best Regards,
Michael Widlok
Last edited by widlokm on Fri May 26, 2017 6:20 am; edited 1 time in total |
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Dr.Willy
Guru
Joined: 15 Jul 2007
Posts: 547
Location: NRW, Germany
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| Posted: Wed May 24, 2017 8:22 pm Post subject: |
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| manpage wrote: | | The event value is a regular expression (see regcomp(3)), against which events are matched. |
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widlokm
Tux's lil' helper
Joined: 22 Sep 2007
Posts: 75
Location: Poland
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| Posted: Wed May 24, 2017 9:09 pm Post subject: |
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| The acpid manual was the first place where I wanted to find the answer, unfortunately it does not tell me what the event will be. A string "0x2313" a number? All examples I found during long searching are only for buttons. So more generic: How the "event=" line should look like to catch numeric events? |
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Dr.Willy
Guru
Joined: 15 Jul 2007
Posts: 547
Location: NRW, Germany
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| Posted: Thu May 25, 2017 10:43 am Post subject: |
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| widlokm wrote: | | The acpid manual was the first place where I wanted to find the answer, unfortunately it does not tell me what the event will be. A string "0x2313" a number? |
Regexprs are used to match strings, so it must be a string. |
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s4e8
Guru
Joined: 29 Jul 2006
Posts: 311
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| Posted: Thu May 25, 2017 2:38 pm Post subject: |
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According to the doc, the event format/string is
ibm/hotkey HKEY 00000080 0000xxxx
for your case is:
ibm/hotkey HKEY 00000080 00002313 |
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widlokm
Tux's lil' helper
Joined: 22 Sep 2007
Posts: 75
Location: Poland
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| Posted: Fri May 26, 2017 6:23 am Post subject: |
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| Thank You s4e8, that's it. |
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