From bea467aa5da1f51834501da3ac3c40204027a221 Mon Sep 17 00:00:00 2001 From: Mauro Carvalho Chehab Date: Tue, 16 Dec 2025 15:26:14 +0100 Subject: [PATCH] docs: media: v4l2-ioctl.h: document two global variables The media kAPI has two global variables at v4l2-ioctl.h. Document them. Acked-by: Randy Dunlap Tested-by: Randy Dunlap Signed-off-by: Mauro Carvalho Chehab Signed-off-by: Jonathan Corbet Message-ID: <8ebe25ff579962fec09b586f00e77fae7802985f.1765894964.git.mchehab+huawei@kernel.org> --- include/media/v4l2-ioctl.h | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/include/media/v4l2-ioctl.h b/include/media/v4l2-ioctl.h index 6f7a58350441b..54c83b18d555b 100644 --- a/include/media/v4l2-ioctl.h +++ b/include/media/v4l2-ioctl.h @@ -663,7 +663,22 @@ void v4l_printk_ioctl(const char *prefix, unsigned int cmd); struct video_device; /* names for fancy debug output */ + +/** + * var v4l2_field_names - Helper array mapping ``V4L2_FIELD_*`` to strings. + * + * Specially when printing debug messages, it is interesting to output + * the field order at the V4L2 buffers. This array associates all possible + * values of field pix format from V4L2 API into a string. + */ extern const char *v4l2_field_names[]; + +/** + * var v4l2_type_names - Helper array mapping ``V4L2_BUF_TYPE_*`` to strings. + * + * When printing debug messages, it is interesting to output the V4L2 buffer + * type number with a name that represents its content. + */ extern const char *v4l2_type_names[]; #ifdef CONFIG_COMPAT -- 2.47.3