V4L/DVB (8822): gspca: Change some subdriver functions for suspend/resume.

- new function 'init' called on probe and resume
- remove the functions 'open' and 'closed'
- 'stopN' and 'stop0' are optional

Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

22 files changed, 89 insertions, 298 deletions

diff --git a/drivers/media/video/gspca/conex.c b/drivers/media/video/gspca/conex.c
index 739ef557c434..3db5c1e3283a 100644
--- a/drivers/media/video/gspca/conex.c
+++ b/drivers/media/video/gspca/conex.c
@@ -826,8 +826,8 @@ static int sd_config(struct gspca_dev *gspca_dev,
 	return 0;
 }
 
-/* this function is called at open time */
-static int sd_open(struct gspca_dev *gspca_dev)
+/* this function is called at probe and resume time */
+static int sd_init(struct gspca_dev *gspca_dev)
 {
 	cx11646_init1(gspca_dev);
 	cx11646_initsize(gspca_dev);
@@ -845,10 +845,6 @@ static void sd_start(struct gspca_dev *gspca_dev)
 	cx11646_jpeg(gspca_dev);
 }
 
-static void sd_stopN(struct gspca_dev *gspca_dev)
-{
-}
-
 static void sd_stop0(struct gspca_dev *gspca_dev)
 {
 	int retry = 50;
@@ -871,10 +867,6 @@ static void sd_stop0(struct gspca_dev *gspca_dev)
 	reg_w_val(gspca_dev, 0x00fc, 0xe0);
 }
 
-static void sd_close(struct gspca_dev *gspca_dev)
-{
-}
-
 static void sd_pkt_scan(struct gspca_dev *gspca_dev,
 			struct gspca_frame *frame,	/* target */
 			__u8 *data,			/* isoc packet */
@@ -998,11 +990,9 @@ static struct sd_desc sd_desc = {
 	.ctrls = sd_ctrls,
 	.nctrls = ARRAY_SIZE(sd_ctrls),
 	.config = sd_config,
-	.open = sd_open,
+	.init = sd_init,
 	.start = sd_start,
-	.stopN = sd_stopN,
 	.stop0 = sd_stop0,
-	.close = sd_close,
 	.pkt_scan = sd_pkt_scan,
 };
 
diff --git a/drivers/media/video/gspca/etoms.c b/drivers/media/video/gspca/etoms.c
index e5a9eee673a9..c03b1f45de10 100644
--- a/drivers/media/video/gspca/etoms.c
+++ b/drivers/media/video/gspca/etoms.c
@@ -676,8 +676,8 @@ static int sd_config(struct gspca_dev *gspca_dev,
 	return 0;
 }
 
-/* this function is called at open time */
-static int sd_open(struct gspca_dev *gspca_dev)
+/* this function is called at probe and resume time */
+static int sd_init(struct gspca_dev *gspca_dev)
 {
 	struct sd *sd = (struct sd *) gspca_dev;
 
@@ -711,14 +711,6 @@ static void sd_stopN(struct gspca_dev *gspca_dev)
 	et_video(gspca_dev, 0);		/* video off */
 }
 
-static void sd_stop0(struct gspca_dev *gspca_dev)
-{
-}
-
-static void sd_close(struct gspca_dev *gspca_dev)
-{
-}
-
 static __u8 Et_getgainG(struct gspca_dev *gspca_dev)
 {
 	struct sd *sd = (struct sd *) gspca_dev;
@@ -895,11 +887,9 @@ static struct sd_desc sd_desc = {
 	.ctrls = sd_ctrls,
 	.nctrls = ARRAY_SIZE(sd_ctrls),
 	.config = sd_config,
-	.open = sd_open,
+	.init = sd_init,
 	.start = sd_start,
 	.stopN = sd_stopN,
-	.stop0 = sd_stop0,
-	.close = sd_close,
 	.pkt_scan = sd_pkt_scan,
 	.dq_callback = do_autogain,
 };
diff --git a/drivers/media/video/gspca/gspca.c b/drivers/media/video/gspca/gspca.c
index 1767991c1f4b..fe096e76e5c3 100644
--- a/drivers/media/video/gspca/gspca.c
+++ b/drivers/media/video/gspca/gspca.c
@@ -558,10 +558,12 @@ static void gspca_stream_off(struct gspca_dev *gspca_dev)
 	gspca_dev->streaming = 0;
 	atomic_set(&gspca_dev->nevent, 0);
 	if (gspca_dev->present) {
-		gspca_dev->sd_desc->stopN(gspca_dev);
+		if (gspca_dev->sd_desc->stopN)
+			gspca_dev->sd_desc->stopN(gspca_dev);
 		destroy_urbs(gspca_dev);
 		gspca_set_alt0(gspca_dev);
-		gspca_dev->sd_desc->stop0(gspca_dev);
+		if (gspca_dev->sd_desc->stop0)
+			gspca_dev->sd_desc->stop0(gspca_dev);
 		PDEBUG(D_STREAM, "stream off OK");
 	}
 }
@@ -770,19 +772,7 @@ static int dev_open(struct inode *inode, struct file *file)
 		goto out;
 	}
 
-	/* if not done yet, initialize the sensor */
-	if (gspca_dev->users == 0) {
-		if (mutex_lock_interruptible(&gspca_dev->usb_lock)) {
-			ret = -ERESTARTSYS;
-			goto out;
-		}
-		ret = gspca_dev->sd_desc->open(gspca_dev);
-		mutex_unlock(&gspca_dev->usb_lock);
-		if (ret != 0) {
-			PDEBUG(D_ERR|D_CONF, "init device failed %d", ret);
-			goto out;
-		}
-	} else if (gspca_dev->users > 4) {	/* (arbitrary value) */
+	if (gspca_dev->users > 4) {	/* (arbitrary value) */
 		ret = -EBUSY;
 		goto out;
 	}
@@ -795,6 +785,7 @@ static int dev_open(struct inode *inode, struct file *file)
 	else
 		gspca_dev->vdev.debug &= ~3;
 #endif
+	ret = 0;
 out:
 	mutex_unlock(&gspca_dev->queue_lock);
 	if (ret != 0)
@@ -815,11 +806,6 @@ static int dev_close(struct inode *inode, struct file *file)
 
 	/* if the file did the capture, free the streaming resources */
 	if (gspca_dev->capt_file == file) {
-		mutex_lock(&gspca_dev->usb_lock);
-		if (gspca_dev->streaming)
-			gspca_stream_off(gspca_dev);
-		gspca_dev->sd_desc->close(gspca_dev);
-		mutex_unlock(&gspca_dev->usb_lock);
 		frame_free(gspca_dev);
 		gspca_dev->capt_file = NULL;
 		gspca_dev->memory = GSPCA_MEMORY_NO;
@@ -1747,10 +1733,13 @@ int gspca_dev_probe(struct usb_interface *intf,
 /*	gspca_dev->users = 0;			(done by kzalloc) */
 	gspca_dev->nbufread = 2;
 
-	/* configure the subdriver */
+	/* configure the subdriver and initialize the USB device */
 	ret = gspca_dev->sd_desc->config(gspca_dev, id);
 	if (ret < 0)
 		goto out;
+	ret = gspca_dev->sd_desc->init(gspca_dev);
+	if (ret < 0)
+		goto out;
 	ret = gspca_set_alt0(gspca_dev);
 	if (ret < 0)
 		goto out;
@@ -1825,10 +1814,12 @@ int gspca_suspend(struct usb_interface *intf, pm_message_t message)
 	if (!gspca_dev->streaming)
 		return 0;
 	gspca_dev->frozen = 1;		/* avoid urb error messages */
-	gspca_dev->sd_desc->stopN(gspca_dev);
+	if (gspca_dev->sd_desc->stopN)
+		gspca_dev->sd_desc->stopN(gspca_dev);
 	destroy_urbs(gspca_dev);
 	gspca_set_alt0(gspca_dev);
-	gspca_dev->sd_desc->stop0(gspca_dev);
+	if (gspca_dev->sd_desc->stop0)
+		gspca_dev->sd_desc->stop0(gspca_dev);
 	return 0;
 }
 EXPORT_SYMBOL(gspca_suspend);
@@ -1838,11 +1829,9 @@ int gspca_resume(struct usb_interface *intf)
 	struct gspca_dev *gspca_dev = usb_get_intfdata(intf);
 
 	gspca_dev->frozen = 0;
-	if (gspca_dev->users != 0) {
-		gspca_dev->sd_desc->open(gspca_dev);
-		if (gspca_dev->streaming)
-			return gspca_init_transfer(gspca_dev);
-	}
+	gspca_dev->sd_desc->init(gspca_dev);
+	if (gspca_dev->streaming)
+		return gspca_init_transfer(gspca_dev);
 	return 0;
 }
 EXPORT_SYMBOL(gspca_resume);
diff --git a/drivers/media/video/gspca/gspca.h b/drivers/media/video/gspca/gspca.h
index a804ef18b8da..7c2f44b2397f 100644
--- a/drivers/media/video/gspca/gspca.h
+++ b/drivers/media/video/gspca/gspca.h
@@ -90,15 +90,14 @@ struct sd_desc {
 /* controls */
 	const struct ctrl *ctrls;
 	int nctrls;
-/* operations */
+/* mandatory operations */
 	cam_cf_op config;	/* called on probe */
-	cam_op open;		/* called on open */
+	cam_op init;		/* called on probe and resume */
 	cam_v_op start;		/* called on stream on */
-	cam_v_op stopN;		/* called on stream off - main alt */
-	cam_v_op stop0;		/* called on stream off - alt 0 */
-	cam_v_op close;		/* called on close */
 	cam_pkt_op pkt_scan;
 /* optional operations */
+	cam_v_op stopN;		/* called on stream off - main alt */
+	cam_v_op stop0;		/* called on stream off - alt 0 */
 	cam_v_op dq_callback;	/* called when a frame has been dequeued */
 	cam_jpg_op get_jcomp;
 	cam_jpg_op set_jcomp;
diff --git a/drivers/media/video/gspca/mars.c b/drivers/media/video/gspca/mars.c
index d7e209578186..281475913a61 100644
--- a/drivers/media/video/gspca/mars.c
+++ b/drivers/media/video/gspca/mars.c
@@ -144,8 +144,8 @@ static int sd_config(struct gspca_dev *gspca_dev,
 	return 0;
 }
 
-/* this function is called at open time */
-static int sd_open(struct gspca_dev *gspca_dev)
+/* this function is called at probe and resume time */
+static int sd_init(struct gspca_dev *gspca_dev)
 {
 	return 0;
 }
@@ -358,14 +358,6 @@ static void sd_stopN(struct gspca_dev *gspca_dev)
 		PDEBUG(D_ERR, "Camera Stop failed");
 }
 
-static void sd_stop0(struct gspca_dev *gspca_dev)
-{
-}
-
-static void sd_close(struct gspca_dev *gspca_dev)
-{
-}
-
 static void sd_pkt_scan(struct gspca_dev *gspca_dev,
 			struct gspca_frame *frame,	/* target */
 			__u8 *data,			/* isoc packet */
@@ -411,11 +403,9 @@ static const struct sd_desc sd_desc = {
 	.ctrls = sd_ctrls,
 	.nctrls = ARRAY_SIZE(sd_ctrls),
 	.config = sd_config,
-	.open = sd_open,
+	.init = sd_init,
 	.start = sd_start,
 	.stopN = sd_stopN,
-	.stop0 = sd_stop0,
-	.close = sd_close,
 	.pkt_scan = sd_pkt_scan,
 };
 
diff --git a/drivers/media/video/gspca/ov519.c b/drivers/media/video/gspca/ov519.c
index 4062aed24139..19378dde27c6 100644
--- a/drivers/media/video/gspca/ov519.c
+++ b/drivers/media/video/gspca/ov519.c
@@ -1376,8 +1376,8 @@ error:
 	return -EBUSY;
 }
 
-/* this function is called at open time */
-static int sd_open(struct gspca_dev *gspca_dev)
+/* this function is called at probe and resume time */
+static int sd_init(struct gspca_dev *gspca_dev)
 {
 	struct sd *sd = (struct sd *) gspca_dev;
 
@@ -1877,14 +1877,6 @@ static void sd_stopN(struct gspca_dev *gspca_dev)
 	ov51x_led_control((struct sd *) gspca_dev, 0);
 }
 
-static void sd_stop0(struct gspca_dev *gspca_dev)
-{
-}
-
-static void sd_close(struct gspca_dev *gspca_dev)
-{
-}
-
 static void sd_pkt_scan(struct gspca_dev *gspca_dev,
 			struct gspca_frame *frame,	/* target */
 			__u8 *data,			/* isoc packet */
@@ -2141,11 +2133,9 @@ static const struct sd_desc sd_desc = {
 	.ctrls = sd_ctrls,
 	.nctrls = ARRAY_SIZE(sd_ctrls),
 	.config = sd_config,
-	.open = sd_open,
+	.init = sd_init,
 	.start = sd_start,
 	.stopN = sd_stopN,
-	.stop0 = sd_stop0,
-	.close = sd_close,
 	.pkt_scan = sd_pkt_scan,
 };
 
diff --git a/drivers/media/video/gspca/pac207.c b/drivers/media/video/gspca/pac207.c
index e6b5c8a5b5d9..a15bccad947b 100644
--- a/drivers/media/video/gspca/pac207.c
+++ b/drivers/media/video/gspca/pac207.c
@@ -273,8 +273,8 @@ static int sd_config(struct gspca_dev *gspca_dev,
 	return 0;
 }
 
-/* this function is called at open time */
-static int sd_open(struct gspca_dev *gspca_dev)
+/* this function is called at probe and resume time */
+static int sd_init(struct gspca_dev *gspca_dev)
 {
 	pac207_write_reg(gspca_dev, 0x41, 0x00);
 				/* Bit_0=Image Format,
@@ -338,15 +338,6 @@ static void sd_stopN(struct gspca_dev *gspca_dev)
 	pac207_write_reg(gspca_dev, 0x0f, 0x00); /* Power Control */
 }
 
-static void sd_stop0(struct gspca_dev *gspca_dev)
-{
-}
-
-/* this function is called at close time */
-static void sd_close(struct gspca_dev *gspca_dev)
-{
-}
-
 static void pac207_do_auto_gain(struct gspca_dev *gspca_dev)
 {
 	struct sd *sd = (struct sd *) gspca_dev;
@@ -532,11 +523,9 @@ static const struct sd_desc sd_desc = {
 	.ctrls = sd_ctrls,
 	.nctrls = ARRAY_SIZE(sd_ctrls),
 	.config = sd_config,
-	.open = sd_open,
+	.init = sd_init,
 	.start = sd_start,
 	.stopN = sd_stopN,
-	.stop0 = sd_stop0,
-	.close = sd_close,
 	.dq_callback = pac207_do_auto_gain,
 	.pkt_scan = sd_pkt_scan,
 };
diff --git a/drivers/media/video/gspca/pac7311.c b/drivers/media/video/gspca/pac7311.c
index 69d610062d00..e22ca610334f 100644
--- a/drivers/media/video/gspca/pac7311.c
+++ b/drivers/media/video/gspca/pac7311.c
@@ -590,8 +590,8 @@ static void sethvflip(struct gspca_dev *gspca_dev)
 	reg_w(gspca_dev, 0x11, 0x01);
 }
 
-/* this function is called at open time */
-static int sd_open(struct gspca_dev *gspca_dev)
+/* this function is called at probe and resume time */
+static int sd_init(struct gspca_dev *gspca_dev)
 {
 	return 0;
 }
@@ -691,11 +691,6 @@ static void sd_stop0(struct gspca_dev *gspca_dev)
 	}
 }
 
-/* this function is called at close time */
-static void sd_close(struct gspca_dev *gspca_dev)
-{
-}
-
 static void do_autogain(struct gspca_dev *gspca_dev)
 {
 }
@@ -902,11 +897,10 @@ static struct sd_desc sd_desc = {
 	.ctrls = sd_ctrls,
 	.nctrls = ARRAY_SIZE(sd_ctrls),
 	.config = sd_config,
-	.open = sd_open,
+	.init = sd_init,
 	.start = sd_start,
 	.stopN = sd_stopN,
 	.stop0 = sd_stop0,
-	.close = sd_close,
 	.pkt_scan = sd_pkt_scan,
 	.dq_callback = do_autogain,
 };
diff --git a/drivers/media/video/gspca/sonixb.c b/drivers/media/video/gspca/sonixb.c
index 64aae060a934..044a9ec58db5 100644
--- a/drivers/media/video/gspca/sonixb.c
+++ b/drivers/media/video/gspca/sonixb.c
@@ -799,8 +799,8 @@ static int sd_config(struct gspca_dev *gspca_dev,
 	return 0;
 }
 
-/* this function is called at open time */
-static int sd_open(struct gspca_dev *gspca_dev)
+/* this function is called at probe and resume time */
+static int sd_init(struct gspca_dev *gspca_dev)
 {
 	return 0;
 }
@@ -963,14 +963,6 @@ static void sd_stopN(struct gspca_dev *gspca_dev)
 	reg_w(gspca_dev, 0x01, &ByteSend, 1);
 }
 
-static void sd_stop0(struct gspca_dev *gspca_dev)
-{
-}
-
-static void sd_close(struct gspca_dev *gspca_dev)
-{
-}
-
 static void sd_pkt_scan(struct gspca_dev *gspca_dev,
 			struct gspca_frame *frame,	/* target */
 			unsigned char *data,		/* isoc packet */
@@ -1162,11 +1154,9 @@ static const struct sd_desc sd_desc = {
 	.ctrls = sd_ctrls,
 	.nctrls = ARRAY_SIZE(sd_ctrls),
 	.config = sd_config,
-	.open = sd_open,
+	.init = sd_init,
 	.start = sd_start,
 	.stopN = sd_stopN,
-	.stop0 = sd_stop0,
-	.close = sd_close,
 	.pkt_scan = sd_pkt_scan,
 	.querymenu = sd_querymenu,
 	.dq_callback = do_autogain,
diff --git a/drivers/media/video/gspca/sonixj.c b/drivers/media/video/gspca/sonixj.c
index e657b8ba6db7..5380b4323a70 100644
--- a/drivers/media/video/gspca/sonixj.c
+++ b/drivers/media/video/gspca/sonixj.c
@@ -948,8 +948,8 @@ static int sd_config(struct gspca_dev *gspca_dev,
 	return 0;
 }
 
-/* this function is called at open time */
-static int sd_open(struct gspca_dev *gspca_dev)
+/* this function is called at probe and resume time */
+static int sd_init(struct gspca_dev *gspca_dev)
 {
 	struct sd *sd = (struct sd *) gspca_dev;
 /*	const __u8 *sn9c1xx; */
@@ -1353,14 +1353,6 @@ static void sd_stopN(struct gspca_dev *gspca_dev)
 	reg_w1(gspca_dev, 0xf1, 0x00);
 }
 
-static void sd_stop0(struct gspca_dev *gspca_dev)
-{
-}
-
-static void sd_close(struct gspca_dev *gspca_dev)
-{
-}
-
 static void do_autogain(struct gspca_dev *gspca_dev)
 {
 	struct sd *sd = (struct sd *) gspca_dev;
@@ -1548,11 +1540,9 @@ static const struct sd_desc sd_desc = {
 	.ctrls = sd_ctrls,
 	.nctrls = ARRAY_SIZE(sd_ctrls),
 	.config = sd_config,
-	.open = sd_open,
+	.init = sd_init,
 	.start = sd_start,
 	.stopN = sd_stopN,
-	.stop0 = sd_stop0,
-	.close = sd_close,
 	.pkt_scan = sd_pkt_scan,
 	.dq_callback = do_autogain,
 };
diff --git a/drivers/media/video/gspca/spca500.c b/drivers/media/video/gspca/spca500.c
index 5a20385fb170..6e733901fcca 100644
--- a/drivers/media/video/gspca/spca500.c
+++ b/drivers/media/video/gspca/spca500.c
@@ -645,8 +645,8 @@ static int sd_config(struct gspca_dev *gspca_dev,
 	return 0;
 }
 
-/* this function is called at open time */
-static int sd_open(struct gspca_dev *gspca_dev)
+/* this function is called at probe and resume time */
+static int sd_init(struct gspca_dev *gspca_dev)
 {
 	struct sd *sd = (struct sd *) gspca_dev;
 
@@ -880,14 +880,6 @@ static void sd_stopN(struct gspca_dev *gspca_dev)
 		gspca_dev->usb_buf[0]);
 }
 
-static void sd_stop0(struct gspca_dev *gspca_dev)
-{
-}
-
-static void sd_close(struct gspca_dev *gspca_dev)
-{
-}
-
 static void sd_pkt_scan(struct gspca_dev *gspca_dev,
 			struct gspca_frame *frame,	/* target */
 			__u8 *data,			/* isoc packet */
@@ -1051,11 +1043,9 @@ static struct sd_desc sd_desc = {
 	.ctrls = sd_ctrls,
 	.nctrls = ARRAY_SIZE(sd_ctrls),
 	.config = sd_config,
-	.open = sd_open,
+	.init = sd_init,
 	.start = sd_start,
 	.stopN = sd_stopN,
-	.stop0 = sd_stop0,
-	.close = sd_close,
 	.pkt_scan = sd_pkt_scan,
 };
 
diff --git a/drivers/media/video/gspca/spca501.c b/drivers/media/video/gspca/spca501.c
index 525f1b3400e4..e9eb59bae4fb 100644
--- a/drivers/media/video/gspca/spca501.c
+++ b/drivers/media/video/gspca/spca501.c
@@ -1953,8 +1953,8 @@ error:
 	return -EINVAL;
 }
 
-/* this function is called at open time */
-static int sd_open(struct gspca_dev *gspca_dev)
+/* this function is called at probe and resume time */
+static int sd_init(struct gspca_dev *gspca_dev)
 {
 	struct sd *sd = (struct sd *) gspca_dev;
 
@@ -2023,11 +2023,6 @@ static void sd_stopN(struct gspca_dev *gspca_dev)
 
 static void sd_stop0(struct gspca_dev *gspca_dev)
 {
-}
-
-/* this function is called at close time */
-static void sd_close(struct gspca_dev *gspca_dev)
-{
 	reg_write(gspca_dev->dev, SPCA501_REG_CTLRL, 0x05, 0x00);
 }
 
@@ -2120,11 +2115,10 @@ static const struct sd_desc sd_desc = {
 	.ctrls = sd_ctrls,
 	.nctrls = ARRAY_SIZE(sd_ctrls),
 	.config = sd_config,
-	.open = sd_open,
+	.init = sd_init,
 	.start = sd_start,
 	.stopN = sd_stopN,
 	.stop0 = sd_stop0,
-	.close = sd_close,
 	.pkt_scan = sd_pkt_scan,
 };
 
diff --git a/drivers/media/video/gspca/spca505.c b/drivers/media/video/gspca/spca505.c
index 8f00558c2f59..f601daf19ebe 100644
--- a/drivers/media/video/gspca/spca505.c
+++ b/drivers/media/video/gspca/spca505.c
@@ -655,8 +655,8 @@ static int sd_config(struct gspca_dev *gspca_dev,
 	return 0;
 }
 
-/* this function is called at open time */
-static int sd_open(struct gspca_dev *gspca_dev)
+/* this function is called at probe and resume time */
+static int sd_init(struct gspca_dev *gspca_dev)
 {
 	struct sd *sd = (struct sd *) gspca_dev;
 	int ret;
@@ -743,11 +743,6 @@ static void sd_stopN(struct gspca_dev *gspca_dev)
 
 static void sd_stop0(struct gspca_dev *gspca_dev)
 {
-}
-
-/* this function is called at close time */
-static void sd_close(struct gspca_dev *gspca_dev)
-{
 	/* This maybe reset or power control */
 	reg_write(gspca_dev->dev, 0x03, 0x03, 0x20);
 	reg_write(gspca_dev->dev, 0x03, 0x01, 0x0);
@@ -825,11 +820,10 @@ static const struct sd_desc sd_desc = {
 	.ctrls = sd_ctrls,
 	.nctrls = ARRAY_SIZE(sd_ctrls),
 	.config = sd_config,
-	.open = sd_open,
+	.init = sd_init,
 	.start = sd_start,
 	.stopN = sd_stopN,
 	.stop0 = sd_stop0,
-	.close = sd_close,
 	.pkt_scan = sd_pkt_scan,
 };
 
diff --git a/drivers/media/video/gspca/spca506.c b/drivers/media/video/gspca/spca506.c
index ae772488cf73..195dce96ef06 100644
--- a/drivers/media/video/gspca/spca506.c
+++ b/drivers/media/video/gspca/spca506.c
@@ -313,8 +313,8 @@ static int sd_config(struct gspca_dev *gspca_dev,
 	return 0;
 }
 
-/* this function is called at open time */
-static int sd_open(struct gspca_dev *gspca_dev)
+/* this function is called at probe and resume time */
+static int sd_init(struct gspca_dev *gspca_dev)
 {
 	struct usb_device *dev = gspca_dev->dev;
 
@@ -560,14 +560,6 @@ static void sd_stopN(struct gspca_dev *gspca_dev)
 	reg_w(dev, 0x03, 0x00, 0x0003);
 }
 
-static void sd_stop0(struct gspca_dev *gspca_dev)
-{
-}
-
-static void sd_close(struct gspca_dev *gspca_dev)
-{
-}
-
 static void sd_pkt_scan(struct gspca_dev *gspca_dev,
 			struct gspca_frame *frame,	/* target */
 			__u8 *data,			/* isoc packet */
@@ -740,11 +732,9 @@ static struct sd_desc sd_desc = {
 	.ctrls = sd_ctrls,
 	.nctrls = ARRAY_SIZE(sd_ctrls),
 	.config = sd_config,
-	.open = sd_open,
+	.init = sd_init,
 	.start = sd_start,
 	.stopN = sd_stopN,
-	.stop0 = sd_stop0,
-	.close = sd_close,
 	.pkt_scan = sd_pkt_scan,
 };
 
diff --git a/drivers/media/video/gspca/spca508.c b/drivers/media/video/gspca/spca508.c
index 7b38c4e70fdf..281ce02103a3 100644
--- a/drivers/media/video/gspca/spca508.c
+++ b/drivers/media/video/gspca/spca508.c
@@ -1521,8 +1521,8 @@ static int sd_config(struct gspca_dev *gspca_dev,
 	return 0;			/* success */
 }
 
-/* this function is called at open time */
-static int sd_open(struct gspca_dev *gspca_dev)
+/* this function is called at probe and resume time */
+static int sd_init(struct gspca_dev *gspca_dev)
 {
 /*	write_vector(gspca_dev, spca508_open_data); */
 	return 0;
@@ -1554,15 +1554,6 @@ static void sd_stopN(struct gspca_dev *gspca_dev)
 	reg_write(gspca_dev->dev, 0x8112, 0x20);
 }
 
-static void sd_stop0(struct gspca_dev *gspca_dev)
-{
-}
-
-/* this function is called at close time */
-static void sd_close(struct gspca_dev *gspca_dev)
-{
-}
-
 static void sd_pkt_scan(struct gspca_dev *gspca_dev,
 			struct gspca_frame *frame,	/* target */
 			__u8 *data,			/* isoc packet */
@@ -1633,11 +1624,9 @@ static const struct sd_desc sd_desc = {
 	.ctrls = sd_ctrls,
 	.nctrls = ARRAY_SIZE(sd_ctrls),
 	.config = sd_config,
-	.open = sd_open,
+	.init = sd_init,
 	.start = sd_start,
 	.stopN = sd_stopN,
-	.stop0 = sd_stop0,
-	.close = sd_close,
 	.pkt_scan = sd_pkt_scan,
 };
 
diff --git a/drivers/media/video/gspca/spca561.c b/drivers/media/video/gspca/spca561.c
index b6a013f1dec4..2ca509daf0b4 100644
--- a/drivers/media/video/gspca/spca561.c
+++ b/drivers/media/video/gspca/spca561.c
@@ -560,14 +560,14 @@ static int sd_config(struct gspca_dev *gspca_dev,
 	return 0;
 }
 
-/* this function is called at open time */
-static int sd_open_12a(struct gspca_dev *gspca_dev)
+/* this function is called at probe and resume time */
+static int sd_init_12a(struct gspca_dev *gspca_dev)
 {
 	PDEBUG(D_STREAM, "Chip revision: 012a");
 	init_161rev12A(gspca_dev);
 	return 0;
 }
-static int sd_open_72a(struct gspca_dev *gspca_dev)
+static int sd_init_72a(struct gspca_dev *gspca_dev)
 {
 	PDEBUG(D_STREAM, "Chip revision: 072a");
 	write_vector(gspca_dev, spca561_init_data);
@@ -733,12 +733,7 @@ static void sd_stop0(struct gspca_dev *gspca_dev)
 		reg_w_val(gspca_dev->dev, 0x8118, 0x29);
 		reg_w_val(gspca_dev->dev, 0x8114, 0x08);
 	}
-}
-
-/* this function is called at close time */
-static void sd_close(struct gspca_dev *gspca_dev)
-{
-	reg_w_val(gspca_dev->dev, 0x8114, 0);
+/*	reg_w_val(gspca_dev->dev, 0x8114, 0); */
 }
 
 static void do_autogain(struct gspca_dev *gspca_dev)
@@ -1121,11 +1116,10 @@ static const struct sd_desc sd_desc_12a = {
 	.ctrls = sd_ctrls_12a,
 	.nctrls = ARRAY_SIZE(sd_ctrls_12a),
 	.config = sd_config,
-	.open = sd_open_12a,
+	.init = sd_init_12a,
 	.start = sd_start_12a,
 	.stopN = sd_stopN,
 	.stop0 = sd_stop0,
-	.close = sd_close,
 	.pkt_scan = sd_pkt_scan,
 /*	.dq_callback = do_autogain,	 * fixme */
 };
@@ -1134,11 +1128,10 @@ static const struct sd_desc sd_desc_72a = {
 	.ctrls = sd_ctrls_72a,
 	.nctrls = ARRAY_SIZE(sd_ctrls_72a),
 	.config = sd_config,
-	.open = sd_open_72a,
+	.init = sd_init_72a,
 	.start = sd_start_72a,
 	.stopN = sd_stopN,
 	.stop0 = sd_stop0,
-	.close = sd_close,
 	.pkt_scan = sd_pkt_scan,
 	.dq_callback = do_autogain,
 };
diff --git a/drivers/media/video/gspca/stk014.c b/drivers/media/video/gspca/stk014.c
index 387a8cf2b3b1..2f2de429e273 100644
--- a/drivers/media/video/gspca/stk014.c
+++ b/drivers/media/video/gspca/stk014.c
@@ -306,8 +306,8 @@ static int sd_config(struct gspca_dev *gspca_dev,
 	return 0;
 }
 
-/* this function is called at open time */
-static int sd_open(struct gspca_dev *gspca_dev)
+/* this function is called at probe and resume time */
+static int sd_init(struct gspca_dev *gspca_dev)
 {
 	int ret;
 
@@ -398,14 +398,6 @@ static void sd_stopN(struct gspca_dev *gspca_dev)
 	PDEBUG(D_STREAM, "camera stopped");
 }
 
-static void sd_stop0(struct gspca_dev *gspca_dev)
-{
-}
-
-static void sd_close(struct gspca_dev *gspca_dev)
-{
-}
-
 static void sd_pkt_scan(struct gspca_dev *gspca_dev,
 			struct gspca_frame *frame,	/* target */
 			__u8 *data,			/* isoc packet */
@@ -535,11 +527,9 @@ static const struct sd_desc sd_desc = {
 	.ctrls = sd_ctrls,
 	.nctrls = ARRAY_SIZE(sd_ctrls),
 	.config = sd_config,
-	.open = sd_open,
+	.init = sd_init,
 	.start = sd_start,
 	.stopN = sd_stopN,
-	.stop0 = sd_stop0,
-	.close = sd_close,
 	.pkt_scan = sd_pkt_scan,
 	.querymenu = sd_querymenu,
 };
diff --git a/drivers/media/video/gspca/sunplus.c b/drivers/media/video/gspca/sunplus.c
index c935384fc232..bddf73360c25 100644
--- a/drivers/media/video/gspca/sunplus.c
+++ b/drivers/media/video/gspca/sunplus.c
@@ -848,8 +848,8 @@ static int sd_config(struct gspca_dev *gspca_dev,
 	return 0;
 }
 
-/* this function is called at open time */
-static int sd_open(struct gspca_dev *gspca_dev)
+/* this function is called at probe and resume time */
+static int sd_init(struct gspca_dev *gspca_dev)
 {
 	struct sd *sd = (struct sd *) gspca_dev;
 	struct usb_device *dev = gspca_dev->dev;
@@ -1069,14 +1069,6 @@ static void sd_stopN(struct gspca_dev *gspca_dev)
 	}
 }
 
-static void sd_stop0(struct gspca_dev *gspca_dev)
-{
-}
-
-static void sd_close(struct gspca_dev *gspca_dev)
-{
-}
-
 static void sd_pkt_scan(struct gspca_dev *gspca_dev,
 			struct gspca_frame *frame,	/* target */
 			__u8 *data,			/* isoc packet */
@@ -1369,11 +1361,9 @@ static const struct sd_desc sd_desc = {
 	.ctrls = sd_ctrls,
 	.nctrls = ARRAY_SIZE(sd_ctrls),
 	.config = sd_config,
-	.open = sd_open,
+	.init = sd_init,
 	.start = sd_start,
 	.stopN = sd_stopN,
-	.stop0 = sd_stop0,
-	.close = sd_close,
 	.pkt_scan = sd_pkt_scan,
 };
 
diff --git a/drivers/media/video/gspca/t613.c b/drivers/media/video/gspca/t613.c
index 962c1df58297..81b175e15ca7 100644
--- a/drivers/media/video/gspca/t613.c
+++ b/drivers/media/video/gspca/t613.c
@@ -552,6 +552,13 @@ static int init_default_parameters(struct gspca_dev *gspca_dev)
 	return 0;
 }
 
+/* this function is called at probe and resume time */
+static int sd_init(struct gspca_dev *gspca_dev)
+{
+	init_default_parameters(gspca_dev);
+	return 0;
+}
+
 static void setbrightness(struct gspca_dev *gspca_dev)
 {
 	struct sd *sd = (struct sd *) gspca_dev;
@@ -893,18 +900,6 @@ static void sd_start(struct gspca_dev *gspca_dev)
 	setcolors(gspca_dev);
 }
 
-static void sd_stopN(struct gspca_dev *gspca_dev)
-{
-}
-
-static void sd_stop0(struct gspca_dev *gspca_dev)
-{
-}
-
-static void sd_close(struct gspca_dev *gspca_dev)
-{
-}
-
 static void sd_pkt_scan(struct gspca_dev *gspca_dev,
 			struct gspca_frame *frame,	/* target */
 			__u8 *data,			/* isoc packet */
@@ -972,24 +967,14 @@ static int sd_querymenu(struct gspca_dev *gspca_dev,
 	return -EINVAL;
 }
 
-/* this function is called at open time */
-static int sd_open(struct gspca_dev *gspca_dev)
-{
-	init_default_parameters(gspca_dev);
-	return 0;
-}
-
 /* sub-driver description */
 static const struct sd_desc sd_desc = {
 	.name = MODULE_NAME,
 	.ctrls = sd_ctrls,
 	.nctrls = ARRAY_SIZE(sd_ctrls),
 	.config = sd_config,
-	.open = sd_open,
+	.init = sd_init,
 	.start = sd_start,
-	.stopN = sd_stopN,
-	.stop0 = sd_stop0,
-	.close = sd_close,
 	.pkt_scan = sd_pkt_scan,
 	.querymenu = sd_querymenu,
 };
diff --git a/drivers/media/video/gspca/tv8532.c b/drivers/media/video/gspca/tv8532.c
index d2273624a91d..084af05302a0 100644
--- a/drivers/media/video/gspca/tv8532.c
+++ b/drivers/media/video/gspca/tv8532.c
@@ -331,8 +331,8 @@ static void tv_8532_PollReg(struct gspca_dev *gspca_dev)
 	}
 }
 
-/* this function is called at open time */
-static int sd_open(struct gspca_dev *gspca_dev)
+/* this function is called at probe and resume time */
+static int sd_init(struct gspca_dev *gspca_dev)
 {
 	reg_w_1(gspca_dev, TV8532_AD_SLOPE, 0x32);
 	reg_w_1(gspca_dev, TV8532_AD_BITCTRL, 0x00);
@@ -450,14 +450,6 @@ static void sd_stopN(struct gspca_dev *gspca_dev)
 	reg_w_1(gspca_dev, TV8532_GPIO_OE, 0x0b);
 }
 
-static void sd_stop0(struct gspca_dev *gspca_dev)
-{
-}
-
-static void sd_close(struct gspca_dev *gspca_dev)
-{
-}
-
 static void tv8532_preprocess(struct gspca_dev *gspca_dev)
 {
 	struct sd *sd = (struct sd *) gspca_dev;
@@ -611,11 +603,9 @@ static const struct sd_desc sd_desc = {
 	.ctrls = sd_ctrls,
 	.nctrls = ARRAY_SIZE(sd_ctrls),
 	.config = sd_config,
-	.open = sd_open,
+	.init = sd_init,
 	.start = sd_start,
 	.stopN = sd_stopN,
-	.stop0 = sd_stop0,
-	.close = sd_close,
 	.pkt_scan = sd_pkt_scan,
 };
 
diff --git a/drivers/media/video/gspca/vc032x.c b/drivers/media/video/gspca/vc032x.c
index 5454f0eb0077..f8c3ff30e464 100644
--- a/drivers/media/video/gspca/vc032x.c
+++ b/drivers/media/video/gspca/vc032x.c
@@ -1477,8 +1477,8 @@ static int sd_config(struct gspca_dev *gspca_dev,
 	return 0;
 }
 
-/* this function is called at open time */
-static int sd_open(struct gspca_dev *gspca_dev)
+/* this function is called at probe and time */
+static int sd_init(struct gspca_dev *gspca_dev)
 {
 	return 0;
 }
@@ -1640,19 +1640,6 @@ static void sd_stop0(struct gspca_dev *gspca_dev)
 	reg_w(dev, 0x89, 0xffff, 0xffff);
 }
 
-/* this function is called at close time */
-static void sd_close(struct gspca_dev *gspca_dev)
-{
-/*	struct usb_device *dev = gspca_dev->dev;
-	__u8 buffread;
-
-	reg_w(dev, 0x89, 0xffff, 0xffff);
-	reg_w(dev, 0xa0, 0x01, 0xb301);
-	reg_w(dev, 0xa0, 0x09, 0xb303);
-	reg_w(dev, 0x89, 0xffff, 0xffff);
-*/
-}
-
 static void sd_pkt_scan(struct gspca_dev *gspca_dev,
 			struct gspca_frame *frame,	/* target */
 			__u8 *data,			/* isoc packet */
@@ -1741,11 +1728,10 @@ static const struct sd_desc sd_desc = {
 	.ctrls = sd_ctrls,
 	.nctrls = ARRAY_SIZE(sd_ctrls),
 	.config = sd_config,
-	.open = sd_open,
+	.init = sd_init,
 	.start = sd_start,
 	.stopN = sd_stopN,
 	.stop0 = sd_stop0,
-	.close = sd_close,
 	.pkt_scan = sd_pkt_scan,
 	.querymenu = sd_querymenu,
 };
diff --git a/drivers/media/video/gspca/zc3xx.c b/drivers/media/video/gspca/zc3xx.c
index e78b9b7591d5..f4239b442c11 100644
--- a/drivers/media/video/gspca/zc3xx.c
+++ b/drivers/media/video/gspca/zc3xx.c
@@ -7171,8 +7171,8 @@ static int sd_config(struct gspca_dev *gspca_dev,
 	return 0;
 }
 
-/* this function is called at open time */
-static int sd_open(struct gspca_dev *gspca_dev)
+/* this function is called at probe and resume time */
+static int sd_init(struct gspca_dev *gspca_dev)
 {
 	reg_w(gspca_dev->dev, 0x01, 0x0000);
 	return 0;
@@ -7333,10 +7333,6 @@ static void sd_start(struct gspca_dev *gspca_dev)
 	}
 }
 
-static void sd_stopN(struct gspca_dev *gspca_dev)
-{
-}
-
 static void sd_stop0(struct gspca_dev *gspca_dev)
 {
 	struct sd *sd = (struct sd *) gspca_dev;
@@ -7344,11 +7340,6 @@ static void sd_stop0(struct gspca_dev *gspca_dev)
 	send_unknown(gspca_dev->dev, sd->sensor);
 }
 
-/* this function is called at close time */
-static void sd_close(struct gspca_dev *gspca_dev)
-{
-}
-
 static void sd_pkt_scan(struct gspca_dev *gspca_dev,
 			struct gspca_frame *frame,
 			__u8 *data,
@@ -7508,11 +7499,9 @@ static const struct sd_desc sd_desc = {
 	.ctrls = sd_ctrls,
 	.nctrls = sizeof sd_ctrls / sizeof sd_ctrls[0],
 	.config = sd_config,
-	.open = sd_open,
+	.init = sd_init,
 	.start = sd_start,
-	.stopN = sd_stopN,
 	.stop0 = sd_stop0,
-	.close = sd_close,
 	.pkt_scan = sd_pkt_scan,
 	.querymenu = sd_querymenu,
 };