/******************************************************************************
*
* cpia2_v4l_read
*
*****************************************************************************/
static ssize_t cpia2_v4l_read(struct file *file, char __user *buf, size_t count,
loff_t *off)
{
struct camera_data *cam = video_drvdata(file);
int noblock = file->f_flags&O_NONBLOCK;
if(!cam)
return -EINVAL;
return cpia2_read(cam, buf, count, noblock);
}
/******************************************************************************
*
* cpia2_v4l_read
*
*****************************************************************************/
static ssize_t cpia2_v4l_read(struct file *file, char __user *buf, size_t count,
loff_t *off)
{
struct camera_data *cam = video_drvdata(file);
int noblock = file->f_flags&O_NONBLOCK;
ssize_t ret;
if(!cam)
return -EINVAL;
if (mutex_lock_interruptible(&cam->v4l2_lock))
return -ERESTARTSYS;
ret = cpia2_read(cam, buf, count, noblock);
mutex_unlock(&cam->v4l2_lock);
return ret;
}