media: tvp5150: add v4l2-event support

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Currently the driver notifies internal subdevs if the signal is locked
or not. This information is also useful for userpace applications e.g. to
switch to another input device upon a signal lost event.

This commit adds the support for the userspace to subscribe to the
V4L2_EVENT_SOURCE_CHANGE and V4L2_EVENT_CTRL events.

Signed-off-by: Marco Felsch <m.felsch@pengutronix.de>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>

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Marco Felsch 2020-03-12 11:31:51 +01:00 • committed by Mauro Carvalho Chehab

parent 73549a69a4

commit e953c10300

1 changed files with 17 additions and 1 deletions

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18

drivers/media/i2c/tvp5150.c

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