media: cec/core: clarify rx-arb-lost usage message
authorHans Verkuil <hverkuil-cisco@xs4all.nl>
Wed, 31 Mar 2021 08:32:12 +0000 (10:32 +0200)
committerMauro Carvalho Chehab <mchehab+huawei@kernel.org>
Tue, 6 Apr 2021 14:08:38 +0000 (16:08 +0200)
commit92eda6b7dad6372cd35f13560cad980cf2f6485a
tree6d1ad7d23dd3fd27b3607a9783fa5edbe18c171e
parent2f65dd20d02ee372547863a4fee34f5fbe480511
media: cec/core: clarify rx-arb-lost usage message

The rx-arb-lost error injection command only works with <op> set to 'any'.
Explicitly say so in the usage message.

Also use [] to indicate that the <poll> argument is optional.

Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Documentation/userspace-api/media/cec/cec-pin-error-inj.rst
drivers/media/cec/core/cec-pin-error-inj.c