Re: Generic hotkey driver for dock ejecting

[Pavel Troller <patrol-FIBU9iiavH4@public.gmane.org>]

  
> It might actually be nice to have an interface that allows userspace to 
> call arbitrary ACPI methods at any time, rather than simply in response 
> to hotkey events.
> 
Hi! 
  Such interface does exist! It's Alex Williamson's  dev_acpi driver, which
loads as a kernel module, and an userspace utility.
I've written a small "acpicall" program based on his own utilities, allowing to
call any method without arguments or with a single integer. BTW, there is
a program called "acpiundock" in his package; did You Try it ? I didn't, 
because I don't have nothing to dock/undock.
  I think that the dev_acpi module is a hot candidate for inclusion to the
kernel tree, it exposes /dev/acpi character device, which interacts with the
ACPI subsystem by ioctls and read/write and allows really nice ACPI space
access.
  It can be found at
  http://free.linux.hp.com/~awilliam/acpi/dev_acpi/dev_acpi-20040803.tar.bz2 ;
I've sent him a patch which registers the driver with sysfs, thus automatically
creating the /dev/acpi node, but he didn't make a new release containing it yet,
I can send it if You want, as well as my experimental acpicall utility source.
                             With regards, Pavel Troller
  
> -- 
> Matthew Garrett | mjg59-1xO5oi07KQx4cg9Nei1l7Q@public.gmane.org
> 
> 
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September 19-22, 2005 * San Francisco, CA * Development Lifecycle Practices
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Security * Process Improvement & Measurement * http://www.sqe.com/bsce5sf