diff options
| -rw-r--r-- | drivers/media/video/vivi.c | 622 |
1 files changed, 283 insertions, 339 deletions
diff --git a/drivers/media/video/vivi.c b/drivers/media/video/vivi.c index d002561aeb4..0aa54fb7727 100644 --- a/drivers/media/video/vivi.c +++ b/drivers/media/video/vivi.c @@ -48,24 +48,15 @@ #include "font.h" -MODULE_DESCRIPTION("Video Technology Magazine Virtual Video Capture Board"); -MODULE_AUTHOR("Mauro Carvalho Chehab, Ted Walther and John Sokol"); -MODULE_LICENSE("Dual BSD/GPL"); - #define VIVI_MAJOR_VERSION 0 #define VIVI_MINOR_VERSION 4 #define VIVI_RELEASE 0 #define VIVI_VERSION KERNEL_VERSION(VIVI_MAJOR_VERSION, VIVI_MINOR_VERSION, VIVI_RELEASE) -static int video_nr = -1; /* /dev/videoN, -1 for autodetect */ -module_param(video_nr, int, 0); - -static int debug = 0; -module_param(debug, int, 0); - -static unsigned int vid_limit = 16; -module_param(vid_limit,int,0644); -MODULE_PARM_DESC(vid_limit,"capture memory limit in megabytes"); +/* Declare static vars that will be used as parameters */ +static unsigned int vid_limit = 16; /* Video memory limit, in Mb */ +static struct video_device vivi; /* Video device */ +static int video_nr = -1; /* /dev/videoN, -1 for autodetect */ /* supported controls */ static struct v4l2_queryctrl vivi_qctrl[] = { @@ -119,10 +110,10 @@ static struct v4l2_queryctrl vivi_qctrl[] = { static int qctl_regs[ARRAY_SIZE(vivi_qctrl)]; -#define dprintk(level,fmt, arg...) \ - do { \ - if (debug >= (level)) \ - printk(KERN_DEBUG "vivi: " fmt , ## arg); \ +#define dprintk(level,fmt, arg...) \ + do { \ + if (vivi.debug >= (level)) \ + printk(KERN_DEBUG "vivi: " fmt , ## arg); \ } while (0) /* ------------------------------------------------------------------ @@ -180,7 +171,7 @@ struct vivi_dev { /* various device info */ unsigned int resources; - struct video_device video_dev; + struct video_device vfd; struct vivi_dmaqueue vidq; @@ -830,7 +821,80 @@ static struct videobuf_queue_ops vivi_video_qops = { IOCTL handling ------------------------------------------------------------------*/ -static int vivi_try_fmt(struct vivi_dev *dev, struct vivi_fh *fh, + +static int res_get(struct vivi_dev *dev, struct vivi_fh *fh) +{ + /* is it free? */ + down(&dev->lock); + if (dev->resources) { + /* no, someone else uses it */ + up(&dev->lock); + return 0; + } + /* it's free, grab it */ + dev->resources =1; + dprintk(1,"res: get\n"); + up(&dev->lock); + return 1; +} + +static int res_locked(struct vivi_dev *dev) +{ + return (dev->resources); +} + +static void res_free(struct vivi_dev *dev, struct vivi_fh *fh) +{ + down(&dev->lock); + dev->resources = 0; + dprintk(1,"res: put\n"); + up(&dev->lock); +} + +/* ------------------------------------------------------------------ + IOCTL vidioc handling + ------------------------------------------------------------------*/ +static int vidioc_querycap (struct file *file, void *priv, + struct v4l2_capability *cap) +{ + strcpy(cap->driver, "vivi"); + strcpy(cap->card, "vivi"); + cap->version = VIVI_VERSION; + cap->capabilities = V4L2_CAP_VIDEO_CAPTURE | + V4L2_CAP_STREAMING | + V4L2_CAP_READWRITE; + return 0; +} + +static int vidioc_enum_fmt_cap (struct file *file, void *priv, + struct v4l2_fmtdesc *f) +{ + if (f->index > 0) + return -EINVAL; + + strlcpy(f->description,format.name,sizeof(f->description)); + f->pixelformat = format.fourcc; + return 0; +} + +static int vidioc_g_fmt_cap (struct file *file, void *priv, + struct v4l2_format *f) +{ + struct vivi_fh *fh=priv; + + f->fmt.pix.width = fh->width; + f->fmt.pix.height = fh->height; + f->fmt.pix.field = fh->vb_vidq.field; + f->fmt.pix.pixelformat = fh->fmt->fourcc; + f->fmt.pix.bytesperline = + (f->fmt.pix.width * fh->fmt->depth) >> 3; + f->fmt.pix.sizeimage = + f->fmt.pix.height * f->fmt.pix.bytesperline; + + return (0); +} + +static int vidioc_try_fmt_cap (struct file *file, void *priv, struct v4l2_format *f) { struct vivi_fmt *fmt; @@ -838,7 +902,8 @@ static int vivi_try_fmt(struct vivi_dev *dev, struct vivi_fh *fh, unsigned int maxw, maxh; if (format.fourcc != f->fmt.pix.pixelformat) { - dprintk(1,"Fourcc format invalid.\n"); + dprintk(1,"Fourcc format (0x%08x) invalid. Driver accepts " + "only 0x%08x\n",f->fmt.pix.pixelformat,format.fourcc); return -EINVAL; } fmt=&format; @@ -874,356 +939,196 @@ static int vivi_try_fmt(struct vivi_dev *dev, struct vivi_fh *fh, return 0; } -static int res_get(struct vivi_dev *dev, struct vivi_fh *fh) +/*FIXME: This seems to be generic enough to be at videodev2 */ +static int vidioc_s_fmt_cap (struct file *file, void *priv, + struct v4l2_format *f) { - /* is it free? */ - down(&dev->lock); - if (dev->resources) { - /* no, someone else uses it */ - up(&dev->lock); - return 0; - } - /* it's free, grab it */ - dev->resources =1; - dprintk(1,"res: get\n"); - up(&dev->lock); - return 1; + struct vivi_fh *fh=priv; + int ret = vidioc_try_fmt_cap(file,fh,f); + if (ret < 0) + return (ret); + + fh->fmt = &format; + fh->width = f->fmt.pix.width; + fh->height = f->fmt.pix.height; + fh->vb_vidq.field = f->fmt.pix.field; + fh->type = f->type; + + return (0); } -static int res_locked(struct vivi_dev *dev) +static int vidioc_reqbufs (struct file *file, void *priv, struct v4l2_requestbuffers *p) { - return (dev->resources); -} + struct vivi_fh *fh=priv; -static void res_free(struct vivi_dev *dev, struct vivi_fh *fh) -{ - down(&dev->lock); - dev->resources = 0; - dprintk(1,"res: put\n"); - up(&dev->lock); + return (videobuf_reqbufs(&fh->vb_vidq, p)); } -static int vivi_do_ioctl(struct inode *inode, struct file *file, unsigned int cmd, void *arg) +static int vidioc_querybuf (struct file *file, void *priv, struct v4l2_buffer *p) { - struct vivi_fh *fh = file->private_data; - struct vivi_dev *dev = fh->dev; - int ret=0; + struct vivi_fh *fh=priv; - if (debug) { - if (_IOC_DIR(cmd) & _IOC_WRITE) - v4l_printk_ioctl_arg("vivi(w)",cmd, arg); - else if (!_IOC_DIR(cmd) & _IOC_READ) { - v4l_print_ioctl("vivi", cmd); - } - } + return (videobuf_querybuf(&fh->vb_vidq, p)); +} - switch(cmd) { - /* --- capabilities ------------------------------------------ */ - case VIDIOC_QUERYCAP: - { - struct v4l2_capability *cap = (struct v4l2_capability*)arg; - - memset(cap, 0, sizeof(*cap)); - - strcpy(cap->driver, "vivi"); - strcpy(cap->card, "vivi"); - cap->version = VIVI_VERSION; - cap->capabilities = - V4L2_CAP_VIDEO_CAPTURE | - V4L2_CAP_STREAMING | - V4L2_CAP_READWRITE; - break; - } - /* --- capture ioctls ---------------------------------------- */ - case VIDIOC_ENUM_FMT: - { - struct v4l2_fmtdesc *f = arg; - enum v4l2_buf_type type; - unsigned int index; +static int vidioc_qbuf (struct file *file, void *priv, struct v4l2_buffer *p) +{ + struct vivi_fh *fh=priv; - index = f->index; - type = f->type; + return (videobuf_qbuf(&fh->vb_vidq, p)); +} - if (f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) { - ret=-EINVAL; - break; - } +static int vidioc_dqbuf (struct file *file, void *priv, struct v4l2_buffer *p) +{ + struct vivi_fh *fh=priv; - switch (type) { - case V4L2_BUF_TYPE_VIDEO_CAPTURE: - if (index > 0){ - ret=-EINVAL; - break; - } - memset(f,0,sizeof(*f)); + return (videobuf_dqbuf(&fh->vb_vidq, p, + file->f_flags & O_NONBLOCK)); +} - f->index = index; - f->type = type; - strlcpy(f->description,format.name,sizeof(f->description)); - f->pixelformat = format.fourcc; - break; - default: - ret=-EINVAL; - } - break; +#ifdef HAVE_V4L1 +static int vidiocgmbuf (struct file *file, void *priv, struct video_mbuf *mbuf) +{ + struct vivi_fh *fh=priv; + struct videobuf_queue *q=&fh->vb_vidq; + struct v4l2_requestbuffers req; + unsigned int i, ret; + + req.type = q->type; + req.count = 8; + req.memory = V4L2_MEMORY_MMAP; + ret = videobuf_reqbufs(q,&req); + if (ret < 0) + return (ret); + memset(mbuf,0,sizeof(*mbuf)); + mbuf->frames = req.count; + mbuf->size = 0; + for (i = 0; i < mbuf->frames; i++) { + mbuf->offsets[i] = q->bufs[i]->boff; + mbuf->size += q->bufs[i]->bsize; } - case VIDIOC_G_FMT: - { - struct v4l2_format *f = (struct v4l2_format *)arg; + return (0); +} +#endif - if (f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) { - ret=-EINVAL; - break; - } +int vidioc_streamon (struct file *file, void *priv, enum v4l2_buf_type i) +{ + struct vivi_fh *fh=priv; + struct vivi_dev *dev = fh->dev; - memset(&f->fmt.pix,0,sizeof(f->fmt.pix)); - f->fmt.pix.width = fh->width; - f->fmt.pix.height = fh->height; - f->fmt.pix.field = fh->vb_vidq.field; - f->fmt.pix.pixelformat = fh->fmt->fourcc; - f->fmt.pix.bytesperline = - (f->fmt.pix.width * fh->fmt->depth) >> 3; - f->fmt.pix.sizeimage = - f->fmt.pix.height * f->fmt.pix.bytesperline; - break; - } - case VIDIOC_S_FMT: - { - struct v4l2_format *f = arg; + if (fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) + return -EINVAL; + if (i != fh->type) + return -EINVAL; - if (f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) { - dprintk(1,"Only capture supported.\n"); - ret=-EINVAL; - break; - } + if (!res_get(dev,fh)) + return -EBUSY; + return (videobuf_streamon(&fh->vb_vidq)); +} - ret = vivi_try_fmt(dev,fh,f); - if (ret < 0) - break; +int vidioc_streamoff (struct file *file, void *priv, enum v4l2_buf_type i) +{ + struct vivi_fh *fh=priv; + struct vivi_dev *dev = fh->dev; - fh->fmt = &format; - fh->width = f->fmt.pix.width; - fh->height = f->fmt.pix.height; - fh->vb_vidq.field = f->fmt.pix.field; - fh->type = f->type; + if (fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) + return -EINVAL; + if (i != fh->type) + return -EINVAL; - break; - } - case VIDIOC_TRY_FMT: - { - struct v4l2_format *f = arg; - if (f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) { - ret=-EINVAL; - break; - } + videobuf_streamoff(&fh->vb_vidq); + res_free(dev,fh); - ret=vivi_try_fmt(dev,fh,f); - break; - } - case VIDIOC_REQBUFS: - if (fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) { - ret=-EINVAL; - break; - } - ret=videobuf_reqbufs(&fh->vb_vidq, arg); - break; - case VIDIOC_QUERYBUF: - if (fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) { - ret=-EINVAL; - break; - } - ret=videobuf_querybuf(&fh->vb_vidq, arg); - break; - case VIDIOC_QBUF: - if (fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) { - ret=-EINVAL; - break; - } - ret=videobuf_qbuf(&fh->vb_vidq, arg); - break; - case VIDIOC_DQBUF: - if (fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) { - ret=-EINVAL; - break; - } - ret=videobuf_dqbuf(&fh->vb_vidq, arg, - file->f_flags & O_NONBLOCK); - break; -#ifdef HAVE_V4L1 - /* --- streaming capture ------------------------------------- */ - case VIDIOCGMBUF: - { - struct video_mbuf *mbuf = arg; - struct videobuf_queue *q=&fh->vb_vidq; - struct v4l2_requestbuffers req; - unsigned int i; - - memset(&req,0,sizeof(req)); - req.type = q->type; - req.count = 8; - req.memory = V4L2_MEMORY_MMAP; - ret = videobuf_reqbufs(q,&req); - if (ret < 0) - break; - memset(mbuf,0,sizeof(*mbuf)); - mbuf->frames = req.count; - mbuf->size = 0; - for (i = 0; i < mbuf->frames; i++) { - mbuf->offsets[i] = q->bufs[i]->boff; - mbuf->size += q->bufs[i]->bsize; - } - break; - } -#endif - case VIDIOC_STREAMON: - { - if (fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) - return -EINVAL; - if (!res_get(dev,fh)) - return -EBUSY; - ret=videobuf_streamon(&fh->vb_vidq); - break; - } - case VIDIOC_STREAMOFF: + return (0); +} + +static struct v4l2_tvnorm tvnorms[] = { { - if (fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) { - ret=-EINVAL; - break; - } - ret = videobuf_streamoff(&fh->vb_vidq); - if (ret < 0) - break; - res_free(dev,fh); - break; + .name = "NTSC-M", + .id = V4L2_STD_NTSC_M, } - /* ---------- tv norms ---------- */ - case VIDIOC_ENUMSTD: - { - struct v4l2_standard *e = arg; +}; - if (e->index>0) { - ret=-EINVAL; - break; - } - ret = v4l2_video_std_construct(e, V4L2_STD_NTSC_M, "NTSC-M"); +static int vidioc_s_std (struct file *file, void *priv, v4l2_std_id a) +{ - /* Allows vivi to use different fps from video std */ - e->frameperiod.numerator = WAKE_NUMERATOR; - e->frameperiod.denominator = WAKE_DENOMINATOR; + return 0; +} - break; - } - case VIDIOC_G_STD: - { - v4l2_std_id *id = arg; +/* only one input in this sample driver */ +static int vidioc_enum_input (struct file *file, void *priv, + struct v4l2_input *inp) +{ + if (inp->index != 0) + return -EINVAL; - *id = V4L2_STD_NTSC_M; - break; - } - case VIDIOC_S_STD: - { - break; - } - /* ------ input switching ---------- */ - case VIDIOC_ENUMINPUT: - { /* only one input in this sample driver */ - struct v4l2_input *inp = arg; + inp->type = V4L2_INPUT_TYPE_CAMERA; + inp->std = V4L2_STD_NTSC_M; + strcpy(inp->name,"Camera"); - if (inp->index != 0) { - ret=-EINVAL; - break; - } - memset(inp, 0, sizeof(*inp)); + return (0); +} - inp->index = 0; - inp->type = V4L2_INPUT_TYPE_CAMERA; - inp->std = V4L2_STD_NTSC_M; - strcpy(inp->name,"Camera"); - break; - } - case VIDIOC_G_INPUT: - { - unsigned int *i = arg; +static int vidioc_g_input (struct file *file, void *priv, unsigned int *i) +{ + *i = 0; - *i = 0; - break; - } - case VIDIOC_S_INPUT: - { - unsigned int *i = arg; + return (0); +} +static int vidioc_s_input (struct file *file, void *priv, unsigned int i) +{ + if (i > 0) + return -EINVAL; - if (*i > 0) - ret=-EINVAL; - break; - } + return (0); +} /* --- controls ---------------------------------------------- */ - case VIDIOC_QUERYCTRL: - { - struct v4l2_queryctrl *qc = arg; - int i; - - for (i = 0; i < ARRAY_SIZE(vivi_qctrl); i++) - if (qc->id && qc->id == vivi_qctrl[i].id) { - memcpy(qc, &(vivi_qctrl[i]), - sizeof(*qc)); - break; - } +static int vidioc_queryctrl (struct file *file, void *priv, + struct v4l2_queryctrl *qc) +{ + int i; - ret=-EINVAL; - break; - } - case VIDIOC_G_CTRL: - { - struct v4l2_control *ctrl = arg; - int i; + for (i = 0; i < ARRAY_SIZE(vivi_qctrl); i++) + if (qc->id && qc->id == vivi_qctrl[i].id) { + memcpy(qc, &(vivi_qctrl[i]), + sizeof(*qc)); + return (0); + } - for (i = 0; i < ARRAY_SIZE(vivi_qctrl); i++) - if (ctrl->id == vivi_qctrl[i].id) { - ctrl->value=qctl_regs[i]; - break; - } + return -EINVAL; +} - ret=-EINVAL; - break; - } - case VIDIOC_S_CTRL: - { - struct v4l2_control *ctrl = arg; - int i; - for (i = 0; i < ARRAY_SIZE(vivi_qctrl); i++) - if (ctrl->id == vivi_qctrl[i].id) { - if (ctrl->value < - vivi_qctrl[i].minimum - || ctrl->value > - vivi_qctrl[i].maximum) { - ret=-ERANGE; - break; - } - qctl_regs[i]=ctrl->value; - break; - } - ret=-EINVAL; - break; - } - default: - ret=v4l_compat_translate_ioctl(inode,file,cmd,arg,vivi_do_ioctl); - } +static int vidioc_g_ctrl (struct file *file, void *priv, + struct v4l2_control *ctrl) +{ + int i; - if (debug) { - if (ret<0) { - v4l_print_ioctl("vivi(err)", cmd); - dprintk(1,"errcode=%d\n",ret); - } else if (_IOC_DIR(cmd) & _IOC_READ) - v4l_printk_ioctl_arg("vivi(r)",cmd, arg); - } + for (i = 0; i < ARRAY_SIZE(vivi_qctrl); i++) + if (ctrl->id == vivi_qctrl[i].id) { + ctrl->value=qctl_regs[i]; + return (0); + } - return ret; + return -EINVAL; } - -static int vivi_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg) +static int vidioc_s_ctrl (struct file *file, void *priv, + struct v4l2_control *ctrl) { - return video_usercopy(inode, file, cmd, arg, vivi_do_ioctl); + int i; + + for (i = 0; i < ARRAY_SIZE(vivi_qctrl); i++) + if (ctrl->id == vivi_qctrl[i].id) { + if (ctrl->value < + vivi_qctrl[i].minimum + || ctrl->value > + vivi_qctrl[i].maximum) { + return (-ERANGE); + } + qctl_regs[i]=ctrl->value; + return (0); + } + return -EINVAL; } /* ------------------------------------------------------------------ @@ -1245,7 +1150,7 @@ static int vivi_open(struct inode *inode, struct file *file) list_for_each(list,&vivi_devlist) { h = list_entry(list, struct vivi_dev, vivi_devlist); - if (h->video_dev.minor == minor) { + if (h->vfd.minor == minor) { dev = h; type = V4L2_BUF_TYPE_VIDEO_CAPTURE; } @@ -1254,6 +1159,7 @@ static int vivi_open(struct inode *inode, struct file *file) return -ENODEV; + /* If more than one user, mutex should be added */ dev->users++; @@ -1269,6 +1175,7 @@ static int vivi_open(struct inode *inode, struct file *file) file->private_data = fh; fh->dev = dev; + fh->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; fh->fmt = &format; fh->width = 640; @@ -1304,7 +1211,7 @@ static int vivi_open(struct inode *inode, struct file *file) static ssize_t vivi_read(struct file *file, char __user *data, size_t count, loff_t *ppos) { - struct vivi_fh *fh = file->private_data; + struct vivi_fh *fh = file->private_data; if (fh->type==V4L2_BUF_TYPE_VIDEO_CAPTURE) { if (res_locked(fh->dev)) @@ -1318,8 +1225,8 @@ vivi_read(struct file *file, char __user *data, size_t count, loff_t *ppos) static unsigned int vivi_poll(struct file *file, struct poll_table_struct *wait) { - struct vivi_fh *fh = file->private_data; - struct vivi_buffer *buf; + struct vivi_fh *fh = file->private_data; + struct vivi_buffer *buf; dprintk(1,"%s\n",__FUNCTION__); @@ -1348,8 +1255,8 @@ vivi_poll(struct file *file, struct poll_table_struct *wait) static int vivi_release(struct inode *inode, struct file *file) { - struct vivi_fh *fh = file->private_data; - struct vivi_dev *dev = fh->dev; + struct vivi_fh *fh = file->private_data; + struct vivi_dev *dev = fh->dev; struct vivi_dmaqueue *vidq = &dev->vidq; int minor = iminor(inode); @@ -1369,7 +1276,7 @@ static int vivi_release(struct inode *inode, struct file *file) static int vivi_mmap(struct file *file, struct vm_area_struct * vma) { - struct vivi_fh *fh = file->private_data; + struct vivi_fh *fh = file->private_data; int ret; dprintk (1,"mmap called, vma=0x%08lx\n",(unsigned long)vma); @@ -1390,20 +1297,44 @@ static struct file_operations vivi_fops = { .release = vivi_release, .read = vivi_read, .poll = vivi_poll, - .ioctl = vivi_ioctl, + .ioctl = video_ioctl2, /* V4L2 ioctl handler */ .mmap = vivi_mmap, .llseek = no_llseek, }; static struct video_device vivi = { - .name = "VTM Virtual Video Capture Board", + .name = "vivi", .type = VID_TYPE_CAPTURE, .hardware = 0, .fops = &vivi_fops, .minor = -1, // .release = video_device_release, + + .vidioc_querycap = vidioc_querycap, + .vidioc_enum_fmt_cap = vidioc_enum_fmt_cap, + .vidioc_g_fmt_cap = vidioc_g_fmt_cap, + .vidioc_try_fmt_cap = vidioc_try_fmt_cap, + .vidioc_s_fmt_cap = vidioc_s_fmt_cap, + .vidioc_reqbufs = vidioc_reqbufs, + .vidioc_querybuf = vidioc_querybuf, + .vidioc_qbuf = vidioc_qbuf, + .vidioc_dqbuf = vidioc_dqbuf, + .vidioc_s_std = vidioc_s_std, + .vidioc_enum_input = vidioc_enum_input, + .vidioc_g_input = vidioc_g_input, + .vidioc_s_input = vidioc_s_input, + .vidioc_queryctrl = vidioc_queryctrl, + .vidioc_g_ctrl = vidioc_g_ctrl, + .vidioc_s_ctrl = vidioc_s_ctrl, + .vidioc_streamon = vidioc_streamon, + .vidioc_streamoff = vidioc_streamoff, +#ifdef HAVE_V4L1 + .vidiocgmbuf = vidiocgmbuf, +#endif + .tvnorms = tvnorms, + .tvnormsize = ARRAY_SIZE(tvnorms), }; -/* ------------------------------------------------------------------ +/* ----------------------------------------------------------------- Initialization and module stuff ------------------------------------------------------------------*/ @@ -1447,3 +1378,16 @@ static void __exit vivi_exit(void) module_init(vivi_init); module_exit(vivi_exit); + +MODULE_DESCRIPTION("Video Technology Magazine Virtual Video Capture Board"); +MODULE_AUTHOR("Mauro Carvalho Chehab, Ted Walther and John Sokol"); +MODULE_LICENSE("Dual BSD/GPL"); + +module_param(video_nr, int, 0); + +module_param_named(debug,vivi.debug, int, 0644); +MODULE_PARM_DESC(debug,"activates debug info"); + +module_param(vid_limit,int,0644); +MODULE_PARM_DESC(vid_limit,"capture memory limit in megabytes"); + |