IBM T23 volume keys handling

[Fabian Keil]

"Michał Frynas" <mfrynas at gmail.com> wrote:

> can someone of you guys, point me a place within the kernel sources, where
> the volume up/volume down keys are handled?
> In more specific I'd like to find a place where the volume keys press event
> is being handled, and add there something like this:
> 
> devctl_notify("ACPI_CUSTOM", "ACPI_VOLUME", (arg > val) ? "ACPI Volume Up" :
> "ACPI Volume Down", NULL);

Are you already aware of the events mentioned in acpi_ibm(4)?

Quote:

|   devd(8) Events
|     Hotkey events received by devd(8) provide the following information:
|
|           system     "ACPI"
|           subsystem  "IBM"
|           type       The source of the event in the ACPI namespace.  The
|                      value depends on the model.
|           notify     Event code (see below).
|
|     Depending on the ThinkPad model, event codes may vary.  On a ThinkPad
|     T41p these are as follows:
|
|           0x01       Fn + F1
|[...]
|           0x15       Volume Up
|           0x16       Volume Down

Either way, I think you're looking for:
/usr/src/sys/dev/acpi_support/acpi_ibm.c

Fabian
-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 187 bytes
Desc: not available
Url : http://lists.freebsd.org/pipermail/freebsd-acpi/attachments/20070528/a85ee936/signature.pgp