Hi,
I am trying out linux-uvc with version 2.6.18-rc6-git3 and it reports
unknown symbols for video_get_drvdata and video_set_drvdata. Based on
another patch for this problem [1] I have fixed this for uvc. The fix works
for me but please bear in mind that I have little kernel programming
experience and thus it could be wrong.
Best regards,
Stefan
[1] http://www.linuxtv.org/downloads/video4linux/patches/2.6.14
/v4l_813_replaced_obsolete_video_get_drvdata_and_video_set_drvdata.patch
--- linux-uvc-0.0.1_pre51.orig/uvcvideo.c 2006-09-15 15:16:15.000000000 +0200
+++ linux-uvc-0.0.1_pre51/uvcvideo.c 2006-09-15 15:29:36.000000000 +0200
@@ -330,6 +330,7 @@
struct uvc_video_queue queue;
struct uvc_streaming *streaming;
+ struct list_head devlist;
struct urb *urb[UVC_URBS];
char *iso_buffer[UVC_URBS];
@@ -636,6 +637,8 @@
}
#endif
+static LIST_HEAD(uvc_devlist);
+
/* ------------------------------------------------------------------------
* Utility functions
*/
@@ -2356,13 +2359,21 @@
static int uvc_v4l2_open(struct inode *inode, struct file *file)
{
- struct video_device *vdev;
- struct uvc_video_device *video;
+ struct uvc_video_device *h,*video = NULL;
+ struct list_head *list;
+ int minor = iminor(inode);
uvc_trace(UVC_TRACE_CALLS, "uvc_v4l2_open\n");
down(&dev_sem);
- vdev = video_devdata(file);
- video = video_get_drvdata(vdev);
+
+ list_for_each(list,&uvc_devlist) {
+ h = list_entry(list, struct uvc_video_device, devlist);
+ if (h->vdev->minor == minor) {
+ video = h;
+ }
+ }
+
+ file->private_data=video;
if (video->dev->state & UVC_DEV_DISCONNECTED) {
up(&dev_sem);
@@ -2383,8 +2394,16 @@
static int uvc_v4l2_release(struct inode *inode, struct file *file)
{
- struct video_device *vdev = video_devdata(file);
- struct uvc_video_device *video = video_get_drvdata(vdev);
+ int minor = iminor(inode);
+ struct uvc_video_device *h,*video = NULL;
+ struct list_head *list;
+
+ list_for_each(list,&uvc_devlist) {
+ h = list_entry(list, struct uvc_video_device, devlist);
+ if (h->vdev->minor == minor) {
+ video = h;
+ }
+ }
uvc_trace(UVC_TRACE_CALLS, "uvc_v4l2_release\n");
uvc_video_enable(video, 0);
@@ -2402,9 +2421,17 @@
static int uvc_v4l2_do_ioctl(struct inode *inode, struct file *file,
unsigned int cmd, void *arg)
{
- struct video_device *vdev = video_devdata(file);
- struct uvc_video_device *video = video_get_drvdata(vdev);
int ret;
+ int minor = iminor(inode);
+ struct uvc_video_device *h,*video = NULL;
+ struct list_head *list;
+
+ list_for_each(list,&uvc_devlist) {
+ h = list_entry(list, struct uvc_video_device, devlist);
+ if (h->vdev->minor == minor) {
+ video = h;
+ }
+ }
if (trace & UVC_TRACE_IOCTL) {
#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,16)
@@ -2732,8 +2759,7 @@
static int uvc_v4l2_mmap(struct file *file, struct vm_area_struct *vma)
{
- struct video_device *vdev = video_devdata(file);
- struct uvc_video_device *video = video_get_drvdata(vdev);
+ struct uvc_video_device *video = file->private_data;
struct uvc_buffer *buffer = NULL;
struct page *page;
unsigned long addr, start, size;
@@ -2799,8 +2825,7 @@
static unsigned int uvc_v4l2_poll(struct file *file, poll_table *wait)
{
- struct video_device *vdev = video_devdata(file);
- struct uvc_video_device *video = video_get_drvdata(vdev);
+ struct uvc_video_device *video = file->private_data;
struct uvc_buffer *buf;
unsigned int mask = 0;
@@ -3697,7 +3722,7 @@
* a pointer to the usb_interface ?
*/
dev->video.vdev = vdev;
- video_set_drvdata(vdev, &dev->video);
+ list_add_tail(&dev->video.devlist,&uvc_devlist);
if (video_register_device(vdev, VFL_TYPE_GRABBER, -1) < 0) {
dev->video.vdev = NULL;
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