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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 /drivers/media/video/v4l2-dev.c
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 'drivers/media/video/v4l2-dev.c')
-rw-r--r--drivers/media/video/v4l2-dev.c25
1 files changed, 6 insertions, 19 deletions
diff --git a/drivers/media/video/v4l2-dev.c b/drivers/media/video/v4l2-dev.c
index 7ad6711ee327..000013448b60 100644
--- a/drivers/media/video/v4l2-dev.c
+++ b/drivers/media/video/v4l2-dev.c
@@ -31,6 +31,7 @@
#include <media/v4l2-common.h>
#include <media/v4l2-device.h>
+#include <media/v4l2-ioctl.h>
#define VIDEO_NUM_DEVICES 256
#define VIDEO_NAME "video4linux"
@@ -182,7 +183,7 @@ static int v4l2_ioctl(struct inode *inode, struct file *filp,
return -ENOTTY;
/* Allow ioctl to continue even if the device was unregistered.
Things like dequeueing buffers might still be useful. */
- return vdev->fops->ioctl(inode, filp, cmd, arg);
+ return vdev->fops->ioctl(filp, cmd, arg);
}
static long v4l2_unlocked_ioctl(struct file *filp,
@@ -197,20 +198,6 @@ static long v4l2_unlocked_ioctl(struct file *filp,
return vdev->fops->unlocked_ioctl(filp, cmd, arg);
}
-#ifdef CONFIG_COMPAT
-static long v4l2_compat_ioctl(struct file *filp,
- unsigned int cmd, unsigned long arg)
-{
- struct video_device *vdev = video_devdata(filp);
-
- if (!vdev->fops->compat_ioctl)
- return -ENOIOCTLCMD;
- /* Allow ioctl to continue even if the device was unregistered.
- Things like dequeueing buffers might still be useful. */
- return vdev->fops->compat_ioctl(filp, cmd, arg);
-}
-#endif
-
static int v4l2_mmap(struct file *filp, struct vm_area_struct *vm)
{
struct video_device *vdev = video_devdata(filp);
@@ -239,7 +226,7 @@ static int v4l2_open(struct inode *inode, struct file *filp)
/* and increase the device refcount */
video_get(vdev);
mutex_unlock(&videodev_lock);
- ret = vdev->fops->open(inode, filp);
+ ret = vdev->fops->open(filp);
/* decrease the refcount in case of an error */
if (ret)
video_put(vdev);
@@ -250,7 +237,7 @@ static int v4l2_open(struct inode *inode, struct file *filp)
static int v4l2_release(struct inode *inode, struct file *filp)
{
struct video_device *vdev = video_devdata(filp);
- int ret = vdev->fops->release(inode, filp);
+ int ret = vdev->fops->release(filp);
/* decrease the refcount unconditionally since the release()
return value is ignored. */
@@ -266,7 +253,7 @@ static const struct file_operations v4l2_unlocked_fops = {
.mmap = v4l2_mmap,
.unlocked_ioctl = v4l2_unlocked_ioctl,
#ifdef CONFIG_COMPAT
- .compat_ioctl = v4l2_compat_ioctl,
+ .compat_ioctl = v4l_compat_ioctl32,
#endif
.release = v4l2_release,
.poll = v4l2_poll,
@@ -281,7 +268,7 @@ static const struct file_operations v4l2_fops = {
.mmap = v4l2_mmap,
.ioctl = v4l2_ioctl,
#ifdef CONFIG_COMPAT
- .compat_ioctl = v4l2_compat_ioctl,
+ .compat_ioctl = v4l_compat_ioctl32,
#endif
.release = v4l2_release,
.poll = v4l2_poll,