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authorHans Verkuil <hverkuil@xs4all.nl>2008-12-30 10:58:20 +0100
committerMauro Carvalho Chehab <mchehab@redhat.com>2009-01-02 20:11:12 +0100
commitbec43661b1dc0075b7445223ba775674133b164d (patch)
tree2a09ad5cc78799985e5cfb789f0a23db58e70499 /include/media/v4l2-dev.h
parentV4L/DVB (10134): v4l2 doc: set v4l2_dev instead of parent. (diff)
downloadlinux-bec43661b1dc0075b7445223ba775674133b164d.tar.xz
linux-bec43661b1dc0075b7445223ba775674133b164d.zip
V4L/DVB (10135): v4l2: introduce v4l2_file_operations.
Introduce a struct v4l2_file_operations for v4l2 drivers. Remove the unnecessary inode argument. Move compat32 handling (and llseek) into the v4l2-dev core: this is now handled in the v4l2 core and no longer in the drivers themselves. Note that this changeset reverts an earlier patch that changed the return type of__video_ioctl2 from int to long. This change will be reinstated later in a much improved version. Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'include/media/v4l2-dev.h')
-rw-r--r--include/media/v4l2-dev.h15
1 files changed, 14 insertions, 1 deletions
diff --git a/include/media/v4l2-dev.h b/include/media/v4l2-dev.h
index 0a88d1d17d30..4d8ce34551df 100644
--- a/include/media/v4l2-dev.h
+++ b/include/media/v4l2-dev.h
@@ -25,6 +25,7 @@
#define VFL_TYPE_MAX 4
struct v4l2_ioctl_callbacks;
+struct video_device;
struct v4l2_device;
/* Flag to mark the video_device struct as unregistered.
@@ -32,6 +33,18 @@ struct v4l2_device;
device access. It is set by video_unregister_device. */
#define V4L2_FL_UNREGISTERED (0)
+struct v4l2_file_operations {
+ struct module *owner;
+ ssize_t (*read) (struct file *, char __user *, size_t, loff_t *);
+ ssize_t (*write) (struct file *, const char __user *, size_t, loff_t *);
+ unsigned int (*poll) (struct file *, struct poll_table_struct *);
+ int (*ioctl) (struct file *, unsigned int, unsigned long);
+ long (*unlocked_ioctl) (struct file *, unsigned int, unsigned long);
+ int (*mmap) (struct file *, struct vm_area_struct *);
+ int (*open) (struct file *);
+ int (*release) (struct file *);
+};
+
/*
* Newer version of video_device, handled by videodev2.c
* This version moves redundant code from video device code to
@@ -41,7 +54,7 @@ struct v4l2_device;
struct video_device
{
/* device ops */
- const struct file_operations *fops;
+ const struct v4l2_file_operations *fops;
/* sysfs */
struct device dev; /* v4l device */