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Message-ID: <c9c5f13f-b3e7-6591-f277-cd86162152e4@quicinc.com>
Date:   Wed, 18 Oct 2023 18:41:45 -0700
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Subject: Re: [PATCH v9 30/34] ASoC: qcom: qdsp6: Add SND kcontrol for fetching
 offload status
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To:     Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>,
        <mathias.nyman@intel.com>, <gregkh@linuxfoundation.org>,
        <lgirdwood@gmail.com>, <broonie@kernel.org>, <perex@perex.cz>,
        <tiwai@suse.com>, <agross@kernel.org>, <andersson@kernel.org>,
        <konrad.dybcio@linaro.org>, <robh+dt@kernel.org>,
        <krzysztof.kozlowski+dt@linaro.org>, <conor+dt@kernel.org>,
        <srinivas.kandagatla@linaro.org>, <bgoswami@quicinc.com>,
        <Thinh.Nguyen@synopsys.com>
CC:     <linux-usb@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
        <alsa-devel@alsa-project.org>, <linux-arm-msm@vger.kernel.org>,
        <devicetree@vger.kernel.org>
References: <20231017200109.11407-1-quic_wcheng@quicinc.com>
 <20231017200109.11407-31-quic_wcheng@quicinc.com>
 <92971bbf-b890-4e41-8ef1-9213e15d81b2@linux.intel.com>
From:   Wesley Cheng <quic_wcheng@quicinc.com>
In-Reply-To: <92971bbf-b890-4e41-8ef1-9213e15d81b2@linux.intel.com>
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Hi Pierre,

On 10/17/2023 3:53 PM, Pierre-Louis Bossart wrote:
> 
> 
> On 10/17/23 15:01, Wesley Cheng wrote:
>> Add a kcontrol to the platform sound card to fetch the current offload
>> status.  This can allow for userspace to ensure/check which USB SND
>> resources are actually busy versus having to attempt opening the USB SND
>> devices, which will result in an error if offloading is active.
> 
> I think I mentioned this a while back, but why not add the status in the
> USB card itself? That's a generic component that all userspace agent
> could query. Having a QCOM-specific control doesn't make the life of
> userspace easier IMHO.
> 
> 

Will take a look at this based on the comments you had in the other 
kcontrol patch.  Seeing if we can move it to a more generic layer.

Thanks
Wesley Cheng