[Pm-utils] [PATCH 6/7] This patch adds framebuffer console handling routines.

[Till Maas]

On Thu February 14 2008, Victor Lowther wrote:

> Right, I do not see where in the HAL source code that is determined.  I
> can see the quirks in
>
> hal-info/fdi/information/10freedesktop/20-video-quirk-pm-dell.fdi
>
> and follow the invocation chain back to hal/tools/hal-system-power-suspend
> but I cannot see where that tool is invoked from or (more critically)
> how the HAL_PROP_POWER_MANAGEMENT_QUIRK family of environment variables
> are created from the descriptions in the hal-info quirks files.
>
> Am I missing something obvious in the hal source code?

Hal is pretty generic about how to generate the environment variables, e.g. 
every property is translated into HAL_PROP_ variables[1] and the possible 
method calls are also configured via fdi files, e.g.
fdi/policy/10osvendor/10-power-mgmt-policy.fdi
seems to contain the mapping from dbus methods to the scripts for power 
management, e.g. here it is defined that hal-system-power-suspend should be 
called for the respective dbus method.

And in this special case, the quirks are properties in the power_management 
namespace which can be set with conditionally with match tags that are 
described here:
http://people.freedesktop.org/~david/hal-spec/hal-spec.html#fdi-matching

I hope this helps you already, I do not know where in the source code all the 
fdi files are evaluated, my knowledge comes basically from browsing through 
the hal-spec and grepping around in the source code.

Regards,
Till

[1] 
http://people.freedesktop.org/~david/hal-spec/hal-spec.html#device-properties-info-method-calls
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