plans for toshiba_acpi

plans for toshiba_acpi

[Azael Avalos]

Those are great news to hear, but I have a question.
Is the new /dev/toshiba interface going to have support for HCI only
or also for SCI?

That is because a small program I'm doing for KDE uses both interfaces
for accesing battery save mode, battery info, display brightness, etc.
to the user, so it will be great to have an SCI interface also, this
is just in case the "toshiba" driver fails my program can use
"toshiba_acpi" driver instead or viceversa.

-- 
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Re: plans for toshiba_acpi

[John Belmonte]

Azael Avalos wrote:
> Those are great news to hear, but I have a question.
> Is the new /dev/toshiba interface going to have support for HCI only
> or also for SCI?

Yes, the /dev/toshiba provided by toshiba_acpi will support HCI and
SCI-- it's exactly the same as the toshiba driver.  If you want to try
it, the patch has been available for some time at
<http://memebeam.org/toys/ExperimentalToshibaAcpiDriver>.

--John


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[tlinux-users:07059] plans for toshiba_acpi

[John Belmonte]

Here are my plans for enhancing the "toshiba_acpi" driver, and imploding
the "/proc/acpi/toshiba" interface.

* incorporate ACPI hotkeys patch developed by Daniel Silverstone and
used in Ubuntu Linux.  Available as a run-time option, this creates a
kernel thread which polls the Toshiba firmware for hotkey events, and
passes them along to the ACPI subsystem.

* incorporate /dev/toshiba emulation patch developed by Gintautas
Miliauskas and Charles Schwieters.  Available as a run-time option, this
causes toshiba_acpi to implement the "toshiba" driver's /dev/toshiba
interface (except for hotkey status).  This device provides access to
the Toshiba HCI, which can be employed by userspace tools such as
"toshset" to adjust a laptop's internal Bluetooth device, display, fan,
etc.  This patch has been in use since early 2004 by several users.
Regarding module auto-loading, OS's will have to resolve the ambiguity
of which driver to load (toshiba or toshiba_acpi) when /dev/toshiba is
accessed.

* add run-time option to suppress creation of /proc/acpi/toshiba.  Since
 the above two options cover the existing /proc/acpi/toshiba interface
and more, the proc interface can be disabled once userspace tools catch up.

Please follow up on <acpi-devel@lists.sourceforge.net>.

--John

Re: plans for toshiba_acpi

[Timo Hoenig]

Hi,

On Sun, 2005-06-12 at 10:12 -0400, John Belmonte wrote:

> Here are my plans for enhancing the "toshiba_acpi" driver, and imploding
> the "/proc/acpi/toshiba" interface.
> 
> * incorporate ACPI hotkeys patch developed by Daniel Silverstone and
> used in Ubuntu Linux.  Available as a run-time option, this creates a
> kernel thread which polls the Toshiba firmware for hotkey events, and
> passes them along to the ACPI subsystem.

Since the hotkey values for brightness up and brightness down are
identical on Toshiba laptops, it would also make sense to let the kernel
thread trigger the appropriate SCI command.  This way no user space tool
would be required for this purpose any longer.

[...]

See you,

   Timo



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