[vbox-dev] HGCM for USB2.0 required?

[Ribhi Kamal]

I applied the changes from http://www.virtualbox.org/changeset/37752  and
now it works, thanks!


On Thu, Aug 4, 2011 at 1:24 PM, Klaus Espenlaub
<klaus.espenlaub at oracle.com>wrote:

> On 04.08.2011 01:43, Ribhi Kamal wrote:
>
>> Is there a special compile-config option that I have to enable inorder
>> to get USB 2.0 working? vboxmange list extpacks shows that my extension
>> pack is installed and usable, and I'm not getting any runtime errors or
>> even warnings.
>>
>> I've been trouble shooting this problem for two days now and I only
>> managed to isolate the problem to VBoxC.dll. The only way I was able to
>> get USB 2.0 to work is by replacing my VBoxC.dll with the one packaged
>> with the virtualbox install.
>>
>> Here is my info:
>> VirtualBox 4.0.4 -- Self Compiled
>> Windows 7 x64
>>
>
> Early VirtualBox 4.0 source code had a bug where a self-compiled package
> would not be able to enable USB 2.0.
>
> I suspect this is what happens here - 4.0.4 is quite old and has this bug.
> Try 4.0.12.
>
> Klaus
>
>
>> Thanks!
>>
>> On Wed, Aug 3, 2011 at 5:54 AM, Vitali Pelenjow
>> <Vitali.Pelenjow at oracle.com <mailto:Vitali.Pelenjow@**oracle.com<Vitali.Pelenjow at oracle.com>>>
>> wrote:
>>
>>    No, HGCM is not required for USB2.0.
>>
>>    You get the HGCM error, because the services (SharedFolders,
>>    GuestProperties) were not loaded.
>>    But this does not affect USB 2.0 at all.
>>
>>    Vitali.
>>
>>    Ribhi Kamal wrote:
>>
>>        Hi all,
>>        Is the HGCM service required in order for USB 2.0 to work?
>>
>>        For some reason USB 2.0 doesn't work with my build and the only
>>        error messages that I see in the machine log is the following:
>>        00:09:31.144 ERROR [COM]: aRC=E_UNEXPECTED (0x8000ffff)
>>        aIID={515e8e8d-f932-4d8e-9f32-**__79a52aead882}
>>        aComponent={Console} aText={The service call failed with the
>>        error VERR_HGCM_SERVICE_NOT_FOUND}, preserve=false
>>        Attached is the complete log.
>>
>>        Thanks!
>>        --
>>        -- Ribhi
>>
>>
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>>
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>> >
>>
>>
>>
>>
>>
>> --
>> -- Ribhi
>>
>>
>>
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-- 
-- Ribhi
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