media: vivid: add <Vendor Command With ID> support

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This makes it possible to test the new CEC_MSG_FL_REPLY_VENDOR_ID flag.

The vivid driver will Feature Abort any messages that do not have
exactly 1 payload byte. It ignores messages where the payload byte is
even, and where it is odd it will reply with the payload byte incremented
by 1. Basically a simple ping-pong command.

Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>

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Hans Verkuil 2024-07-25 10:06:39 +02:00 • committed by Mauro Carvalho Chehab

parent 613f21505b

commit 812765cd69

1 changed files with 45 additions and 3 deletions

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48

drivers/media/test-drivers/vivid/vivid-cec.c

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