Commit 73e0538b authored Oct 06, 2023 by Hans Verkuil

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



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>

parent 900c06e9

Documentation/userspace-api/media/gen-errors.rst

+1 −3

Original line number	Diff line number	Diff line
		@@ -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``