diff --git a/hw/ads7846.c b/hw/ads7846.c
index 1c65ffe15e..7d1cbc7114 100644
--- a/hw/ads7846.c
+++ b/hw/ads7846.c
@@ -155,13 +155,15 @@ static void ads7846_init(SSISlave *dev)
 }
 
 static SSISlaveInfo ads7846_info = {
+    .qdev.name ="ads7846",
+    .qdev.size = sizeof(ADS7846State),
     .init = ads7846_init,
     .transfer = ads7846_transfer
 };
 
 static void ads7846_register_devices(void)
 {
-    ssi_register_slave("ads7846", sizeof(ADS7846State), &ads7846_info);
+    ssi_register_slave(&ads7846_info);
 }
 
 device_init(ads7846_register_devices)
diff --git a/hw/i2c.c b/hw/i2c.c
index 8a0c4d7a75..838f40f88e 100644
--- a/hw/i2c.c
+++ b/hw/i2c.c
@@ -152,12 +152,12 @@ static void i2c_slave_qdev_init(DeviceState *dev, DeviceInfo *base)
     info->init(s);
 }
 
-void i2c_register_slave(const char *name, int size, I2CSlaveInfo *info)
+void i2c_register_slave(I2CSlaveInfo *info)
 {
-    assert(size >= sizeof(i2c_slave));
+    assert(info->qdev.size >= sizeof(i2c_slave));
     info->qdev.init = i2c_slave_qdev_init;
     info->qdev.bus_type = BUS_TYPE_I2C;
-    qdev_register(name, size, &info->qdev);
+    qdev_register(&info->qdev);
 }
 
 DeviceState *i2c_create_slave(i2c_bus *bus, const char *name, int addr)
diff --git a/hw/i2c.h b/hw/i2c.h
index f15c70c5ed..c4df39988c 100644
--- a/hw/i2c.h
+++ b/hw/i2c.h
@@ -57,7 +57,7 @@ void i2c_slave_load(QEMUFile *f, i2c_slave *dev);
 #define I2C_SLAVE_FROM_QDEV(dev) DO_UPCAST(i2c_slave, qdev, dev)
 #define FROM_I2C_SLAVE(type, dev) DO_UPCAST(type, i2c, dev)
 
-void i2c_register_slave(const char *name, int size, I2CSlaveInfo *type);
+void i2c_register_slave(I2CSlaveInfo *type);
 
 DeviceState *i2c_create_slave(i2c_bus *bus, const char *name, int addr);
 
diff --git a/hw/lm832x.c b/hw/lm832x.c
index 74eeca2e97..18ea1f59aa 100644
--- a/hw/lm832x.c
+++ b/hw/lm832x.c
@@ -526,6 +526,8 @@ void lm832x_key_event(struct i2c_slave *i2c, int key, int state)
 }
 
 static I2CSlaveInfo lm8323_info = {
+    .qdev.name = "lm8323",
+    .qdev.size = sizeof(LM823KbdState),
     .init = lm8323_init,
     .event = lm_i2c_event,
     .recv = lm_i2c_rx,
@@ -534,7 +536,7 @@ static I2CSlaveInfo lm8323_info = {
 
 static void lm832x_register_devices(void)
 {
-    i2c_register_slave("lm8323", sizeof(LM823KbdState), &lm8323_info);
+    i2c_register_slave(&lm8323_info);
 }
 
 device_init(lm832x_register_devices)
diff --git a/hw/max111x.c b/hw/max111x.c
index 217233cffc..f7023a8e9b 100644
--- a/hw/max111x.c
+++ b/hw/max111x.c
@@ -164,19 +164,23 @@ void max111x_set_input(DeviceState *dev, int line, uint8_t value)
 }
 
 static SSISlaveInfo max1110_info = {
+    .qdev.name = "max1110",
+    .qdev.size = sizeof(MAX111xState),
     .init = max1110_init,
     .transfer = max111x_transfer
 };
 
 static SSISlaveInfo max1111_info = {
+    .qdev.name = "max1111",
+    .qdev.size = sizeof(MAX111xState),
     .init = max1111_init,
     .transfer = max111x_transfer
 };
 
 static void max111x_register_devices(void)
 {
-    ssi_register_slave("max1110", sizeof(MAX111xState), &max1110_info);
-    ssi_register_slave("max1111", sizeof(MAX111xState), &max1111_info);
+    ssi_register_slave(&max1110_info);
+    ssi_register_slave(&max1111_info);
 }
 
 device_init(max111x_register_devices)
diff --git a/hw/max7310.c b/hw/max7310.c
index 69ede32a6e..a571e57e90 100644
--- a/hw/max7310.c
+++ b/hw/max7310.c
@@ -218,6 +218,8 @@ void max7310_gpio_out_set(i2c_slave *i2c, int line, qemu_irq handler)
 }
 
 static I2CSlaveInfo max7310_info = {
+    .qdev.name = "max7310",
+    .qdev.size = sizeof(MAX7310State),
     .init = max7310_init,
     .event = max7310_event,
     .recv = max7310_rx,
@@ -226,7 +228,7 @@ static I2CSlaveInfo max7310_info = {
 
 static void max7310_register_devices(void)
 {
-    i2c_register_slave("max7310", sizeof(MAX7310State), &max7310_info);
+    i2c_register_slave(&max7310_info);
 }
 
 device_init(max7310_register_devices)
diff --git a/hw/pci.c b/hw/pci.c
index 8c904bafdb..a3af3b5efb 100644
--- a/hw/pci.c
+++ b/hw/pci.c
@@ -924,11 +924,13 @@ void pci_qdev_register(const char *name, int size, pci_qdev_initfn init)
     PCIDeviceInfo *info;
 
     info = qemu_mallocz(sizeof(*info));
+    info->qdev.name = qemu_strdup(name);
+    info->qdev.size = size;
     info->init = init;
     info->qdev.init = pci_qdev_init;
     info->qdev.bus_type = BUS_TYPE_PCI;
 
-    qdev_register(name, size, &info->qdev);
+    qdev_register(&info->qdev);
 }
 
 PCIDevice *pci_create_simple(PCIBus *bus, int devfn, const char *name)
diff --git a/hw/pxa2xx.c b/hw/pxa2xx.c
index febe527491..e001d1fc73 100644
--- a/hw/pxa2xx.c
+++ b/hw/pxa2xx.c
@@ -1485,6 +1485,8 @@ static void pxa2xx_i2c_slave_init(i2c_slave *i2c)
 }
 
 static I2CSlaveInfo pxa2xx_i2c_slave_info = {
+    .qdev.name = "pxa2xx-i2c-slave",
+    .qdev.size = sizeof(PXA2xxI2CSlaveState),
     .init = pxa2xx_i2c_slave_init,
     .event = pxa2xx_i2c_event,
     .recv = pxa2xx_i2c_rx,
@@ -2258,8 +2260,7 @@ PXA2xxState *pxa255_init(unsigned int sdram_size)
 
 static void pxa2xx_register_devices(void)
 {
-    i2c_register_slave("pxa2xx-i2c-slave", sizeof(PXA2xxI2CSlaveState),
-                       &pxa2xx_i2c_slave_info);
+    i2c_register_slave(&pxa2xx_i2c_slave_info);
     sysbus_register_dev("pxa2xx-ssp", sizeof(PXA2xxSSPState), pxa2xx_ssp_init);
 }
 
diff --git a/hw/qdev.c b/hw/qdev.c
index d23298ca08..385e7099b1 100644
--- a/hw/qdev.c
+++ b/hw/qdev.c
@@ -42,9 +42,7 @@ struct DeviceProperty {
 };
 
 struct DeviceType {
-    const char *name;
     DeviceInfo *info;
-    int size;
     DeviceType *next;
 };
 
@@ -54,17 +52,15 @@ static BusState *main_system_bus;
 static DeviceType *device_type_list;
 
 /* Register a new device type.  */
-void qdev_register(const char *name, int size, DeviceInfo *info)
+void qdev_register(DeviceInfo *info)
 {
     DeviceType *t;
 
-    assert(size >= sizeof(DeviceState));
+    assert(info->size >= sizeof(DeviceState));
 
     t = qemu_mallocz(sizeof(DeviceType));
     t->next = device_type_list;
     device_type_list = t;
-    t->name = qemu_strdup(name);
-    t->size = size;
     t->info = info;
 }
 
@@ -77,7 +73,7 @@ DeviceState *qdev_create(BusState *bus, const char *name)
     DeviceState *dev;
 
     for (t = device_type_list; t; t = t->next) {
-        if (strcmp(t->name, name) == 0) {
+        if (strcmp(t->info->name, name) == 0) {
             break;
         }
     }
@@ -85,7 +81,7 @@ DeviceState *qdev_create(BusState *bus, const char *name)
         hw_error("Unknown device '%s'\n", name);
     }
 
-    dev = qemu_mallocz(t->size);
+    dev = qemu_mallocz(t->info->size);
     dev->type = t;
 
     if (!bus) {
@@ -173,7 +169,7 @@ CharDriverState *qdev_init_chardev(DeviceState *dev)
     static int next_serial;
     static int next_virtconsole;
     /* FIXME: This is a nasty hack that needs to go away.  */
-    if (strncmp(dev->type->name, "virtio", 6) == 0) {
+    if (strncmp(dev->type->info->name, "virtio", 6) == 0) {
         return virtcon_hds[next_virtconsole++];
     } else {
         return serial_hds[next_serial++];
@@ -355,7 +351,7 @@ static void qdev_print(Monitor *mon, DeviceState *dev, int indent)
 {
     DeviceProperty *prop;
     BusState *child;
-    qdev_printf("dev: %s\n", dev->type->name);
+    qdev_printf("dev: %s\n", dev->type->info->name);
     indent += 2;
     if (dev->num_gpio_in) {
         qdev_printf("gpio-in %d\n", dev->num_gpio_in);
@@ -374,7 +370,7 @@ static void qdev_print(Monitor *mon, DeviceState *dev, int indent)
             break;
         case PROP_TYPE_DEV:
             qdev_printf("prop-dev %s %s\n", prop->name,
-                        ((DeviceState *)prop->value.ptr)->type->name);
+                        ((DeviceState *)prop->value.ptr)->type->info->name);
             break;
         default:
             qdev_printf("prop-unknown%d %s\n", prop->type, prop->name);
diff --git a/hw/qdev.h b/hw/qdev.h
index 7291805b46..ad104992a6 100644
--- a/hw/qdev.h
+++ b/hw/qdev.h
@@ -78,12 +78,16 @@ typedef void (*SCSIAttachFn)(DeviceState *host, BlockDriverState *bdrv,
               int unit);
 
 struct DeviceInfo {
+    const char *name;
+    size_t size;
+    DevicePropList *props;
+
+    /* Private to qdev / bus.  */
     qdev_initfn init;
     BusType bus_type;
-    DevicePropList *props;
 };
 
-void qdev_register(const char *name, int size, DeviceInfo *info);
+void qdev_register(DeviceInfo *info);
 
 /* Register device properties.  */
 /* GPIO inputs also double as IRQ sinks.  */
diff --git a/hw/smbus.c b/hw/smbus.c
index 6bea4faabb..5618902e7a 100644
--- a/hw/smbus.c
+++ b/hw/smbus.c
@@ -206,14 +206,14 @@ static void smbus_device_init(i2c_slave *i2c)
     t->init(dev);
 }
 
-void smbus_register_device(const char *name, int size, SMBusDeviceInfo *info)
+void smbus_register_device(SMBusDeviceInfo *info)
 {
-    assert(size >= sizeof(SMBusDevice));
+    assert(info->i2c.qdev.size >= sizeof(SMBusDevice));
     info->i2c.init = smbus_device_init;
     info->i2c.event = smbus_i2c_event;
     info->i2c.recv = smbus_i2c_recv;
     info->i2c.send = smbus_i2c_send;
-    i2c_register_slave(name, size, &info->i2c);
+    i2c_register_slave(&info->i2c);
 }
 
 /* Master device commands.  */
diff --git a/hw/smbus.h b/hw/smbus.h
index 5b6e20f91f..d8c805964d 100644
--- a/hw/smbus.h
+++ b/hw/smbus.h
@@ -53,7 +53,7 @@ typedef struct {
     uint8_t (*read_data)(SMBusDevice *dev, uint8_t cmd, int n);
 } SMBusDeviceInfo;
 
-void smbus_register_device(const char *name, int size, SMBusDeviceInfo *info);
+void smbus_register_device(SMBusDeviceInfo *info);
 
 /* Master device commands.  */
 void smbus_quick_command(i2c_bus *bus, int addr, int read);
diff --git a/hw/smbus_eeprom.c b/hw/smbus_eeprom.c
index 3f8b386994..05a70d9b1c 100644
--- a/hw/smbus_eeprom.c
+++ b/hw/smbus_eeprom.c
@@ -105,6 +105,8 @@ static void smbus_eeprom_init(SMBusDevice *dev)
 }
 
 static SMBusDeviceInfo smbus_eeprom_info = {
+    .i2c.qdev.name = "smbus-eeprom",
+    .i2c.qdev.size = sizeof(SMBusEEPROMDevice),
     .init = smbus_eeprom_init,
     .quick_cmd = eeprom_quick_cmd,
     .send_byte = eeprom_send_byte,
@@ -115,8 +117,7 @@ static SMBusDeviceInfo smbus_eeprom_info = {
 
 static void smbus_eeprom_register_devices(void)
 {
-    smbus_register_device("smbus-eeprom", sizeof(SMBusEEPROMDevice),
-                          &smbus_eeprom_info);
+    smbus_register_device(&smbus_eeprom_info);
 }
 
 device_init(smbus_eeprom_register_devices)
diff --git a/hw/spitz.c b/hw/spitz.c
index aa1487b20a..b0d42adc93 100644
--- a/hw/spitz.c
+++ b/hw/spitz.c
@@ -1076,19 +1076,23 @@ static void spitz_machine_init(void)
 machine_init(spitz_machine_init);
 
 static SSISlaveInfo corgi_ssp_info = {
+    .qdev.name = "corgi-ssp",
+    .qdev.size = sizeof(CorgiSSPState),
     .init = corgi_ssp_init,
     .transfer = corgi_ssp_transfer
 };
 
 static SSISlaveInfo spitz_lcdtg_info = {
+    .qdev.name = "spitz-lcdtg",
+    .qdev.size = sizeof(SpitzLCDTG),
     .init = spitz_lcdtg_init,
     .transfer = spitz_lcdtg_transfer
 };
 
 static void spitz_register_devices(void)
 {
-    ssi_register_slave("corgi-ssp", sizeof(CorgiSSPState), &corgi_ssp_info);
-    ssi_register_slave("spitz-lcdtg", sizeof(SpitzLCDTG), &spitz_lcdtg_info);
+    ssi_register_slave(&corgi_ssp_info);
+    ssi_register_slave(&spitz_lcdtg_info);
 }
 
 device_init(spitz_register_devices)
diff --git a/hw/ssd0303.c b/hw/ssd0303.c
index 5a3a29e87e..6872ef5e1a 100644
--- a/hw/ssd0303.c
+++ b/hw/ssd0303.c
@@ -316,6 +316,8 @@ static void ssd0303_init(i2c_slave *i2c)
 }
 
 static I2CSlaveInfo ssd0303_info = {
+    .qdev.name = "ssd0303",
+    .qdev.size = sizeof(ssd0303_state),
     .init = ssd0303_init,
     .event = ssd0303_event,
     .recv = ssd0303_recv,
@@ -324,7 +326,7 @@ static I2CSlaveInfo ssd0303_info = {
 
 static void ssd0303_register_devices(void)
 {
-    i2c_register_slave("ssd0303", sizeof(ssd0303_state), &ssd0303_info);
+    i2c_register_slave(&ssd0303_info);
 }
 
 device_init(ssd0303_register_devices)
diff --git a/hw/ssd0323.c b/hw/ssd0323.c
index c083d9a7ce..319ab87241 100644
--- a/hw/ssd0323.c
+++ b/hw/ssd0323.c
@@ -339,13 +339,15 @@ static void ssd0323_init(SSISlave *dev)
 }
 
 static SSISlaveInfo ssd0323_info = {
+    .qdev.name = "ssd0323",
+    .qdev.size = sizeof(ssd0323_state),
     .init = ssd0323_init,
     .transfer = ssd0323_transfer
 };
 
 static void ssd03232_register_devices(void)
 {
-    ssi_register_slave("ssd0323", sizeof(ssd0323_state), &ssd0323_info);
+    ssi_register_slave(&ssd0323_info);
 }
 
 device_init(ssd03232_register_devices)
diff --git a/hw/ssi-sd.c b/hw/ssi-sd.c
index 3e78bd2ac3..4e67f143c3 100644
--- a/hw/ssi-sd.c
+++ b/hw/ssi-sd.c
@@ -241,13 +241,15 @@ static void ssi_sd_init(SSISlave *dev)
 }
 
 static SSISlaveInfo ssi_sd_info = {
+    .qdev.name = "ssi-sd",
+    .qdev.size = sizeof(ssi_sd_state),
     .init = ssi_sd_init,
     .transfer = ssi_sd_transfer
 };
 
 static void ssi_sd_register_devices(void)
 {
-    ssi_register_slave("ssi-sd", sizeof(ssi_sd_state), &ssi_sd_info);
+    ssi_register_slave(&ssi_sd_info);
 }
 
 device_init(ssi_sd_register_devices)
diff --git a/hw/ssi.c b/hw/ssi.c
index 52b7b7c593..b0bcf97151 100644
--- a/hw/ssi.c
+++ b/hw/ssi.c
@@ -29,12 +29,12 @@ static void ssi_slave_init(DeviceState *dev, DeviceInfo *base_info)
     info->init(s);
 }
 
-void ssi_register_slave(const char *name, int size, SSISlaveInfo *info)
+void ssi_register_slave(SSISlaveInfo *info)
 {
-    assert(size >= sizeof(SSISlave));
+    assert(info->qdev.size >= sizeof(SSISlave));
     info->qdev.init = ssi_slave_init;
     info->qdev.bus_type = BUS_TYPE_SSI;
-    qdev_register(name, size, &info->qdev);
+    qdev_register(&info->qdev);
 }
 
 DeviceState *ssi_create_slave(SSIBus *bus, const char *name)
diff --git a/hw/ssi.h b/hw/ssi.h
index 861c4849e7..6ff71e9d35 100644
--- a/hw/ssi.h
+++ b/hw/ssi.h
@@ -30,7 +30,7 @@ struct SSISlave {
 #define SSI_SLAVE_FROM_QDEV(dev) DO_UPCAST(SSISlave, qdev, dev)
 #define FROM_SSI_SLAVE(type, dev) DO_UPCAST(type, ssidev, dev)
 
-void ssi_register_slave(const char *name, int size, SSISlaveInfo *info);
+void ssi_register_slave(SSISlaveInfo *info);
 
 DeviceState *ssi_create_slave(SSIBus *bus, const char *name);
 
diff --git a/hw/stellaris.c b/hw/stellaris.c
index 38b9830e27..bf339e8aad 100644
--- a/hw/stellaris.c
+++ b/hw/stellaris.c
@@ -1444,6 +1444,8 @@ static void stellaris_machine_init(void)
 machine_init(stellaris_machine_init);
 
 static SSISlaveInfo stellaris_ssi_bus_info = {
+    .qdev.name = "evb6965-ssi",
+    .qdev.size = sizeof(stellaris_ssi_bus_state),
     .init = stellaris_ssi_bus_init,
     .transfer = stellaris_ssi_bus_transfer
 };
@@ -1456,8 +1458,7 @@ static void stellaris_register_devices(void)
                         stellaris_gptm_init);
     sysbus_register_dev("stellaris-adc", sizeof(stellaris_adc_state),
                         stellaris_adc_init);
-    ssi_register_slave("evb6965-ssi", sizeof(stellaris_ssi_bus_state),
-                       &stellaris_ssi_bus_info);
+    ssi_register_slave(&stellaris_ssi_bus_info);
 }
 
 device_init(stellaris_register_devices)
diff --git a/hw/syborg_timer.c b/hw/syborg_timer.c
index b833330e5b..b6d7f0cd45 100644
--- a/hw/syborg_timer.c
+++ b/hw/syborg_timer.c
@@ -228,18 +228,17 @@ static void syborg_timer_init(SysBusDevice *dev)
 
 static SysBusDeviceInfo syborg_timer_info = {
     .init = syborg_timer_init,
-    .qdev = {
-        .props = (DevicePropList[]) {
-              {.name = "frequency", .type = PROP_TYPE_INT},
-              {.name = NULL}
-        }
+    .qdev.name  = "syborg,timer",
+    .qdev.size  = sizeof(SyborgTimerState),
+    .qdev.props = (DevicePropList[]) {
+        {.name = "frequency", .type = PROP_TYPE_INT},
+        {.name = NULL}
     }
 };
 
 static void syborg_timer_register_devices(void)
 {
-    sysbus_register_withprop("syborg,timer", sizeof(SyborgTimerState),
-                            &syborg_timer_info);
+    sysbus_register_withprop(&syborg_timer_info);
 }
 
 device_init(syborg_timer_register_devices)
diff --git a/hw/sysbus.c b/hw/sysbus.c
index fbd2ddf394..ef3a7011e9 100644
--- a/hw/sysbus.c
+++ b/hw/sysbus.c
@@ -105,14 +105,13 @@ static void sysbus_device_init(DeviceState *dev, DeviceInfo *base)
     info->init(sysbus_from_qdev(dev));
 }
 
-void sysbus_register_withprop(const char *name, size_t size,
-                              SysBusDeviceInfo *info)
+void sysbus_register_withprop(SysBusDeviceInfo *info)
 {
     info->qdev.init = sysbus_device_init;
     info->qdev.bus_type = BUS_TYPE_SYSTEM;
 
-    assert(size >= sizeof(SysBusDevice));
-    qdev_register(name, size, &info->qdev);
+    assert(info->qdev.size >= sizeof(SysBusDevice));
+    qdev_register(&info->qdev);
 }
 
 void sysbus_register_dev(const char *name, size_t size, sysbus_initfn init)
@@ -120,8 +119,10 @@ void sysbus_register_dev(const char *name, size_t size, sysbus_initfn init)
     SysBusDeviceInfo *info;
 
     info = qemu_mallocz(sizeof(*info));
+    info->qdev.name = qemu_strdup(name);
+    info->qdev.size = size;
     info->init = init;
-    sysbus_register_withprop(name, size, info);
+    sysbus_register_withprop(info);
 }
 
 DeviceState *sysbus_create_varargs(const char *name,
diff --git a/hw/sysbus.h b/hw/sysbus.h
index 2973661667..7c20808f3c 100644
--- a/hw/sysbus.h
+++ b/hw/sysbus.h
@@ -37,8 +37,7 @@ typedef struct {
 } SysBusDeviceInfo;
 
 void sysbus_register_dev(const char *name, size_t size, sysbus_initfn init);
-void sysbus_register_withprop(const char *name, size_t size,
-                              SysBusDeviceInfo *info);
+void sysbus_register_withprop(SysBusDeviceInfo *info);
 void *sysbus_new(void);
 void sysbus_init_mmio(SysBusDevice *dev, target_phys_addr_t size, int iofunc);
 void sysbus_init_mmio_cb(SysBusDevice *dev, target_phys_addr_t size,
diff --git a/hw/tmp105.c b/hw/tmp105.c
index 59b039804d..5381b7d66a 100644
--- a/hw/tmp105.c
+++ b/hw/tmp105.c
@@ -239,6 +239,8 @@ static void tmp105_init(i2c_slave *i2c)
 }
 
 static I2CSlaveInfo tmp105_info = {
+    .qdev.name = "tmp105",
+    .qdev.size = sizeof(TMP105State),
     .init = tmp105_init,
     .event = tmp105_event,
     .recv = tmp105_rx,
@@ -247,7 +249,7 @@ static I2CSlaveInfo tmp105_info = {
 
 static void tmp105_register_devices(void)
 {
-    i2c_register_slave("tmp105", sizeof(TMP105State), &tmp105_info);
+    i2c_register_slave(&tmp105_info);
 }
 
 device_init(tmp105_register_devices)
diff --git a/hw/tosa.c b/hw/tosa.c
index a606156e97..b2d66f39d3 100644
--- a/hw/tosa.c
+++ b/hw/tosa.c
@@ -252,6 +252,8 @@ static void tosapda_machine_init(void)
 machine_init(tosapda_machine_init);
 
 static I2CSlaveInfo tosa_dac_info = {
+    .qdev.name = "tosa_dac",
+    .qdev.size = sizeof(TosaDACState),
     .init = tosa_dac_init,
     .event = tosa_dac_event,
     .recv = tosa_dac_recv,
@@ -259,14 +261,16 @@ static I2CSlaveInfo tosa_dac_info = {
 };
 
 static SSISlaveInfo tosa_ssp_info = {
+    .qdev.name = "tosa-ssp",
+    .qdev.size = sizeof(SSISlave),
     .init = tosa_ssp_init,
     .transfer = tosa_ssp_tansfer
 };
 
 static void tosa_register_devices(void)
 {
-    i2c_register_slave("tosa_dac", sizeof(TosaDACState), &tosa_dac_info);
-    ssi_register_slave("tosa-ssp", sizeof(SSISlave), &tosa_ssp_info);
+    i2c_register_slave(&tosa_dac_info);
+    ssi_register_slave(&tosa_ssp_info);
 }
 
 device_init(tosa_register_devices)
diff --git a/hw/twl92230.c b/hw/twl92230.c
index 3a226923b1..9960acc8c5 100644
--- a/hw/twl92230.c
+++ b/hw/twl92230.c
@@ -892,6 +892,8 @@ static void twl92230_init(i2c_slave *i2c)
 }
 
 static I2CSlaveInfo twl92230_info = {
+    .qdev.name ="twl92230",
+    .qdev.size = sizeof(MenelausState),
     .init = twl92230_init,
     .event = menelaus_event,
     .recv = menelaus_rx,
@@ -900,7 +902,7 @@ static I2CSlaveInfo twl92230_info = {
 
 static void twl92230_register_devices(void)
 {
-    i2c_register_slave("twl92230", sizeof(MenelausState), &twl92230_info);
+    i2c_register_slave(&twl92230_info);
 }
 
 device_init(twl92230_register_devices)
diff --git a/hw/wm8750.c b/hw/wm8750.c
index 9f5bd46de4..0c0dbba58b 100644
--- a/hw/wm8750.c
+++ b/hw/wm8750.c
@@ -726,6 +726,8 @@ void wm8750_set_bclk_in(void *opaque, int new_hz)
 }
 
 static I2CSlaveInfo wm8750_info = {
+    .qdev.name = "wm8750",
+    .qdev.size = sizeof(WM8750State),
     .init = wm8750_init,
     .event = wm8750_event,
     .recv = wm8750_rx,
@@ -734,7 +736,7 @@ static I2CSlaveInfo wm8750_info = {
 
 static void wm8750_register_devices(void)
 {
-    i2c_register_slave("wm8750", sizeof(WM8750State), &wm8750_info);
+    i2c_register_slave(&wm8750_info);
 }
 
 device_init(wm8750_register_devices)