return 0;
        }
        /* Need sliced data for mpeg insertion */
-       if (get_service_set(itv->vbi.sliced_in) == 0) {
+       if (ivtv_get_service_set(itv->vbi.sliced_in) == 0) {
                if (itv->is_60hz)
                        itv->vbi.sliced_in->service_set = V4L2_SLICED_CAPTION_525;
                else
                        itv->vbi.sliced_in->service_set = V4L2_SLICED_WSS_625;
-               expand_service_set(itv->vbi.sliced_in, itv->is_50hz);
+               ivtv_expand_service_set(itv->vbi.sliced_in, itv->is_50hz);
        }
        return 0;
 }
 
 #include <linux/dvb/audio.h>
 #include <linux/i2c-id.h>
 
-u16 service2vbi(int type)
+u16 ivtv_service2vbi(int type)
 {
        switch (type) {
                case V4L2_SLICED_TELETEXT_B:
        return 0;
 }
 
-void expand_service_set(struct v4l2_sliced_vbi_format *fmt, int is_pal)
+void ivtv_expand_service_set(struct v4l2_sliced_vbi_format *fmt, int is_pal)
 {
        u16 set = fmt->service_set;
        int f, l;
        return set != 0;
 }
 
-u16 get_service_set(struct v4l2_sliced_vbi_format *fmt)
+u16 ivtv_get_service_set(struct v4l2_sliced_vbi_format *fmt)
 {
        int f, l;
        u16 set = 0;
                        vbifmt->service_lines[0][23] = V4L2_SLICED_WSS_625;
                        vbifmt->service_lines[0][16] = V4L2_SLICED_VPS;
                }
-               vbifmt->service_set = get_service_set(vbifmt);
+               vbifmt->service_set = ivtv_get_service_set(vbifmt);
                break;
        }
 
                if (streamtype == IVTV_DEC_STREAM_TYPE_VBI) {
                        vbifmt->service_set = itv->is_50hz ? V4L2_SLICED_VBI_625 :
                                                 V4L2_SLICED_VBI_525;
-                       expand_service_set(vbifmt, itv->is_50hz);
+                       ivtv_expand_service_set(vbifmt, itv->is_50hz);
                        break;
                }
 
                itv->video_dec_func(itv, VIDIOC_G_FMT, fmt);
-               vbifmt->service_set = get_service_set(vbifmt);
+               vbifmt->service_set = ivtv_get_service_set(vbifmt);
                break;
        }
        case V4L2_BUF_TYPE_VBI_OUTPUT:
        memset(vbifmt->reserved, 0, sizeof(vbifmt->reserved));
 
        if (vbifmt->service_set)
-               expand_service_set(vbifmt, itv->is_50hz);
+               ivtv_expand_service_set(vbifmt, itv->is_50hz);
        set = check_service_set(vbifmt, itv->is_50hz);
-       vbifmt->service_set = get_service_set(vbifmt);
+       vbifmt->service_set = ivtv_get_service_set(vbifmt);
 
        if (!set_fmt)
                return 0;
 
 #ifndef IVTV_IOCTL_H
 #define IVTV_IOCTL_H
 
-u16 service2vbi(int type);
-void expand_service_set(struct v4l2_sliced_vbi_format *fmt, int is_pal);
-u16 get_service_set(struct v4l2_sliced_vbi_format *fmt);
+u16 ivtv_service2vbi(int type);
+void ivtv_expand_service_set(struct v4l2_sliced_vbi_format *fmt, int is_pal);
+u16 ivtv_get_service_set(struct v4l2_sliced_vbi_format *fmt);
 int ivtv_v4l2_ioctl(struct inode *inode, struct file *filp, unsigned int cmd,
                    unsigned long arg);
 int ivtv_v4l2_ioctls(struct ivtv *itv, struct file *filp, unsigned int cmd, void *arg);