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Documentation: media: gen-errors.rst: fix confusing ENOTTY description

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The text is very, very old and predates /dev/mediaX devices, so the
reference to "media device" is today very confusing.

It also says that the ioctl is not supported by the driver, but a
driver may have multiple device nodes, some support a given ioctl,
and some don't.

Simplify the description: ENOTTY means that the ioctl is not supported
by the file descriptor.

Reported-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Reviewed-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
This commit is contained in:
Hans Verkuil 2023-10-06 15:45:48 +02:00
parent 900c06e973
commit 73e0538b49
1 changed files with 1 additions and 3 deletions
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Documentation/userspace-api/media/gen-errors.rst
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@ -59,9 +59,7 @@ Generic Error Codes
- - ``ENOTTY``
- The ioctl is not supported by the driver, actually meaning that
the required functionality is not available, or the file
descriptor is not for a media device.
- The ioctl is not supported by the file descriptor.
- - ``ENOSPC``