[wdmaudiodev] Re: Need help in "FAIL: Non-zero position is being reported, but the cursor is not moving!"
- From: Danny <dangxhfromuestc@xxxxxxxxx>
- To: wdmaudiodev@xxxxxxxxxxxxx
- Date: Fri, 24 Jan 2014 09:24:31 +0800
Hi, Tsai:
I means you can not get WHQL certification with you virtual audio driver,
why you need to do it.
===>Could you elaborate the reason that virtual audio driver can not get
WHQL certification?
Thanks.
2014/1/23 Gaurav Khuntale <gauravkhuntale@xxxxxxxxx>
> Hi,
>
> Thanks for the help. I will try to understand my driver behavior and its
> clients requirement to get all HCK test pass.
>
>
> On Thu, Jan 23, 2014 at 11:49 AM, Tsai Tzung-Dar
> <tdtsai1973@xxxxxxxxxxxx>wrote:
>
>> Hi
>> Most of KS Position test failed is cause by your GetPosition function do
>> not return right position. The Startup Latency failed means your
>> GetPosition function return 0 for a long time(over 15ms) since ks state
>> change to KSSTATE_RUN. You can reference to MSVAD sample code in WDK 7600.
>> I have try it before is can pass KS Position test in DTM 1.6.
>> By the way If you are working on a virtual audio driver, why do you need
>> to pass HCK test? I means you can not get WHQL certification with you
>> virtual audio driver, why you need to do it.
>>
>> ------------------------------
>> *寄件者：* Gaurav Khuntale <gauravkhuntale@xxxxxxxxx>
>> *收件者：* wdmaudiodev@xxxxxxxxxxxxx
>> *寄件日期：* 2014/1/23 (�L四) 1:57 PM
>> *主旨：* [wdmaudiodev] Need help in "FAIL: Non-zero position is being
>> reported, but the cursor is not moving!"
>>
>> Hello,
>>
>> I am working on a virtual audio driver which is based on
>> WaveCyclic.During KS Position test my driver is failing with following
>> error,
>>
>> FAIL: Non-zero position is being reported, but the cursor is not moving!.
>>
>> Test Case is: Standard Streaming\Rendering Performance Tests\Startup
>> Latency (standard streaming).
>>
>> As per my understanding, KS Position test checks the behavior of
>> GetPosition function. But in case of this failure, i am failed to
>> understand what exactly this failure means and where should i look in my
>> driver code to solve this failure.
>>
>> Can anyone please help me to understand this failure ?
>>
>> During investigation, i got to know that during the transition from
>> KSSTATE_RUN to KSSTATE_PAUSE state, play position should get freeze and it
>> should unfreeze when transition from KSSTATE_PAUSE to KSSTATE_RUN happens.
>> But my driver was not doing like this, so i thought this might be reason
>> behind failure and i made changes in my driver code according to this. But
>> still failure remains.
>>
>> Thanks.
>>
>>
>>
>
--
Danny
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