[PATCH 1/3] wineoss.drv: Attempt to verify that the system is actually running OSS

Alexandre Julliard julliard at winehq.org
Mon Jul 25 12:33:33 CDT 2011

Andrew Eikum <aeikum at codeweavers.com> writes:

> On 07/25/2011 09:09 AM, Alexandre Julliard wrote:
>> It's not the driver's business to check the configuration key. If
>> there's really a need to know if some other driver was configured, this
>> info should be passed from the driver loader. But it would be preferable
>> to avoid that.
> I see your point. The idea was to give the user an override, in case
> the OSS detection isn't smart enough and refuses to load a legitimate
> implementation. If the user explicitly tells us to use OSS, then I
> think the heuristics in DllMain should be ignored; nothing in there is
> "critical" to our OSS driver.
> MMDevAPI could pass some "explicit" flag to the driver, but DllMain
> doesn't take arguments (right?). It looks like we'd have to put the
> explicit flag into GetEndpointIDs and change MMDevAPI to check that
> function during driver load time, or create a new Initialize() entry
> point.
> Do you prefer either of those options? Should I just go back to the
> drawing board on the whole idea?

I guess we could have some sort of priority mechanism, where the driver
can returns its priority, and the loader tries them all and keeps the
highest one.

We also probably need a way to have only mmdevapi handle loading so that
winmm doesn't need to duplicate the search strategy. Though the mmdevapi
side will need to be fixed to support the correct registry syntax.

Alexandre Julliard
julliard at winehq.org

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