[wdmaudiodev] Re: Need help in "FAIL: Non-zero position is being reported, but the cursor is not moving!"
- From: Tsai Tzung-Dar <tdtsai1973@xxxxxxxxxxxx>
- To: "wdmaudiodev@xxxxxxxxxxxxx" <wdmaudiodev@xxxxxxxxxxxxx>
- Date: Thu, 23 Jan 2014 18:30:46 -0800 (PST)
Hi Danny:
For WLP define only USB Audio, 1394 Audio and HD Audio can get Audio catalog
WHQL certification.
________________________________
寄件者： Danny <dangxhfromuestc@xxxxxxxxx>
收件者： wdmaudiodev@xxxxxxxxxxxxx
寄件日期： 2014/1/24 (週五) 9:24 AM
主旨： [wdmaudiodev] Re: Need help in "FAIL: Non-zero position is being reported,
but the cursor is not moving!"
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 (週四) 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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