diff --git a/libgphoto2_port/vusb/vcamera.c b/libgphoto2_port/vusb/vcamera.c
index 9d82fef44..4939f3b6e 100644
--- a/libgphoto2_port/vusb/vcamera.c
+++ b/libgphoto2_port/vusb/vcamera.c
@@ -1942,6 +1942,7 @@ vcam_read(vcamera*cam, int ep, unsigned char *data, int bytes) {
 			fwrite(cam->inbulk, 1, toread, cam->fuzzf);
 			/* fallthrough */
 		} else {
+#ifdef FUZZ_PTP
 			/* for reading fuzzer data */
 			if (cam->fuzzpending) {
 				toread = cam->fuzzpending;
@@ -1968,6 +1969,12 @@ vcam_read(vcamera*cam, int ep, unsigned char *data, int bytes) {
 
 				hasread += 4; /* readd size */
 			}
+#else
+			/* just return a blob of data in generic fuzzing */
+			hasread = fread (data, 1, bytes, cam->fuzzf);
+			if (!hasread && feof(cam->fuzzf))
+				return GP_ERROR_IO_READ;
+#endif
 #if 0
 			for (i=0;i<toread;i++)
 				data[i] ^= cam->inbulk[i];
diff --git a/libgphoto2_port/vusb/vcamera.h b/libgphoto2_port/vusb/vcamera.h
index 7000087eb..b3c57258c 100644
--- a/libgphoto2_port/vusb/vcamera.h
+++ b/libgphoto2_port/vusb/vcamera.h
@@ -22,6 +22,8 @@
 #ifndef __VCAMERA_H__
 #define __VCAMERA_H__
 
+#define FUZZ_PTP
+
 #include <stdio.h>
 
 typedef struct ptpcontainer {
@@ -48,6 +50,8 @@ typedef struct vcamera {
 	int (*readint)(struct vcamera*,  unsigned char *data, int bytes, int timeout);
 	int (*write)(struct vcamera*, int ep, const unsigned char *data, int bytes);
 
+	unsigned short	vendor, product;	/* for generic fuzzing */
+
 	vcameratype	type;
 	unsigned char	*inbulk;
 	int		nrinbulk;
diff --git a/libgphoto2_port/vusb/vusb.c b/libgphoto2_port/vusb/vusb.c
index f4b4ef22e..d097f565b 100644
--- a/libgphoto2_port/vusb/vusb.c
+++ b/libgphoto2_port/vusb/vusb.c
@@ -269,7 +269,11 @@ gp_port_vusb_msg_read_lib(GPPort *port, int request, int value, int index,
 static int
 gp_port_vusb_find_device_lib(GPPort *port, int idvendor, int idproduct)
 {
+#ifdef FUZZ_PTP
 	if ((idvendor == 0x04b0) && (idproduct == 0x0437)) { /* Nikon D750 */
+#else
+	if ((idvendor == 0x0851) && (idproduct == 0x1542)) { /* sipix blink */
+#endif
                 port->settings.usb.config	= 1;
                 port->settings.usb.interface	= 1;
                 port->settings.usb.altsetting	= 1;
@@ -289,6 +293,7 @@ gp_port_vusb_find_device_by_class_lib(GPPort *port, int class, int subclass, int
 {
 	gp_log(GP_LOG_DEBUG,__FUNCTION__,"(0x%02x,0x%02x,0x%02x)", class, subclass, protocol);
 
+#ifdef FUZZ_PTP
 	if ((class == 6) && (subclass == 1) && (protocol == 1)) {
                 port->settings.usb.config	= 1;
                 port->settings.usb.interface	= 1;
@@ -301,6 +306,7 @@ gp_port_vusb_find_device_by_class_lib(GPPort *port, int class, int subclass, int
 		return GP_OK;
 	}
         return GP_ERROR_IO_USB_FIND;
+#endif
 }