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Date: Tue, 7 Apr 2026 10:34:18 +0100
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Subject: Re: [PATCH 0/5] media: qcom: camss: Fix RDI streaming for various
 CSIDs
To: Loic Poulain <loic.poulain@oss.qualcomm.com>,
 Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Cc: Robert Foss <rfoss@kernel.org>, Todor Tomov <todor.too@gmail.com>,
 Vladimir Zapolskiy <vladimir.zapolskiy@linaro.org>,
 Mauro Carvalho Chehab <mchehab@kernel.org>,
 Hans Verkuil <hverkuil@kernel.org>, Hans Verkuil
 <hverkuil+cisco@kernel.org>, Gjorgji Rosikopulos
 <quic_grosikop@quicinc.com>, Milen Mitkov <quic_mmitkov@quicinc.com>,
 Depeng Shao <quic_depengs@quicinc.com>, Yongsheng Li <quic_yon@quicinc.com>,
 linux-media@vger.kernel.org, linux-arm-msm@vger.kernel.org,
 linux-kernel@vger.kernel.org, stable@vger.kernel.org
References: <20260406-camss-rdi-fix-v1-0-d3f8b12473d0@kernel.org>
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From: Bryan O'Donoghue <bod@kernel.org>
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On 07/04/2026 09:49, Loic Poulain wrote:
> Okay, then that does reduce the usefulness somewhat... Another point I
> hadn’t initially considered is that we may also want to support
> different data types on the same VC. For example, metadata, stats, and
> image data could be transmitted over the same VC/stream? That seems
> like a valid use case enabled by your fix, and it might be worth
> explicitly mentioning it.

Yes true you can also separate out based on DT.

We could have different data-types on the same VC but of course you'd 
see the DT field in data-stream change and then we'd route that to a 
different rdi on the VFE.

Should be possible to interpret that data from the streams API and route 
but it is indeed VC+DT to vfe_rdiX where both determine X not just the VC.

---
bod