[PATCH] v4l: 798: this patch adds the vidioc log status to videodev2 h and adds

- This patch adds the VIDIOC_LOG_STATUS to videodev2.h and adds
          LOG_STATUS support to tda9887.c and bttv-driver.c.
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@brturbo.com.br>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

drivers/media/video/bttv-driver.c

@@ -1851,6 +1851,11 @@ static int bttv_common_ioctls(struct bttv *btv, unsigned int cmd, void *arg)
 		up(&btv->lock);
 		return 0;
 	}
+	case VIDIOC_LOG_STATUS:
+	{
+		bttv_call_i2c_clients(btv, VIDIOC_LOG_STATUS, 0);
+		return 0;
+	}
 
 	default:
 		return -ENOIOCTLCMD;
@@ -2856,6 +2861,7 @@ static int bttv_do_ioctl(struct inode *inode, struct file *file,
 	case VIDIOC_S_TUNER:
 	case VIDIOC_G_FREQUENCY:
 	case VIDIOC_S_FREQUENCY:
+	case VIDIOC_LOG_STATUS:
 		return bttv_common_ioctls(btv,cmd,arg);
 
 	default:

drivers/media/video/tda9887.c

@@ -60,6 +60,7 @@ struct tda9887 {
 	unsigned int       pinnacle_id;
 	unsigned int       using_v4l2;
 	unsigned int 	   radio_mode;
+	unsigned char 	   data[4];
 };
 
 struct tvnorm {
@@ -575,32 +576,31 @@ static int tda9887_status(struct tda9887 *t)
 
 static int tda9887_configure(struct tda9887 *t)
 {
-	unsigned char buf[4];
 	int rc;
 
-	memset(buf,0,sizeof(buf));
-	tda9887_set_tvnorm(t,buf);
+	memset(t->data,0,sizeof(t->data));
+	tda9887_set_tvnorm(t,t->data);
 
-	buf[1] |= cOutputPort1Inactive;
-	buf[1] |= cOutputPort2Inactive;
+	t->data[1] |= cOutputPort1Inactive;
+	t->data[1] |= cOutputPort2Inactive;
 
 	if (UNSET != t->pinnacle_id) {
-		tda9887_set_pinnacle(t,buf);
+		tda9887_set_pinnacle(t,t->data);
 	}
-	tda9887_set_config(t,buf);
-	tda9887_set_insmod(t,buf);
+	tda9887_set_config(t,t->data);
+	tda9887_set_insmod(t,t->data);
 
 	if (t->mode == T_STANDBY) {
-		buf[1] |= cForcedMuteAudioON;
+		t->data[1] |= cForcedMuteAudioON;
 	}
 
 
 	tda9887_dbg("writing: b=0x%02x c=0x%02x e=0x%02x\n",
-		buf[1],buf[2],buf[3]);
+		t->data[1],t->data[2],t->data[3]);
 	if (debug > 1)
-		dump_write_message(t, buf);
+		dump_write_message(t, t->data);
 
-        if (4 != (rc = i2c_master_send(&t->client,buf,4)))
+        if (4 != (rc = i2c_master_send(&t->client,t->data,4)))
                 tda9887_info("i2c i/o error: rc == %d (should be 4)\n",rc);
 
 	if (debug > 2) {
@@ -785,6 +785,11 @@ tda9887_command(struct i2c_client *client, unsigned int cmd, void *arg)
 		}
 		break;
 	}
+	case VIDIOC_LOG_STATUS:
+	{
+		tda9887_info("Data bytes: b=%02x c=%02x e=%02x\n", t->data[1], t->data[2], t->data[3]);
+		break;
+	}
 	default:
 		/* nothing */
 		break;

include/linux/videodev2.h

@@ -981,6 +981,7 @@ struct v4l2_streamparm
 #if 1
 #define VIDIOC_G_SLICED_VBI_CAP _IOR  ('V', 69, struct v4l2_sliced_vbi_cap)
 #endif
+#define VIDIOC_LOG_STATUS       _IO   ('V', 70)
 
 /* for compatibility, will go away some day */
 #define VIDIOC_OVERLAY_OLD     	_IOWR ('V', 14, int)