USB: convert the drivers/usb/class files to the new USB driver model.

drivers/usb/class/audio.c

@@ -2740,9 +2740,9 @@ static /*const*/ struct file_operations usb_audio_fops = {
 
 /* --------------------------------------------------------------------- */
 
-static void * usb_audio_probe(struct usb_device *dev, unsigned int ifnum,
+static int usb_audio_probe(struct usb_interface *iface,
 			   const struct usb_device_id *id);
-static void usb_audio_disconnect(struct usb_device *dev, void *ptr);
+static void usb_audio_disconnect(struct usb_interface *iface);
 
 static struct usb_device_id usb_audio_ids [] = {
     { .match_flags = (USB_DEVICE_ID_MATCH_INT_CLASS | USB_DEVICE_ID_MATCH_INT_SUBCLASS),
@@ -2756,7 +2756,6 @@ static struct usb_driver usb_audio_driver = {
 	.name =		"audio",
 	.probe =	usb_audio_probe,
 	.disconnect =	usb_audio_disconnect,
-	.driver_list =	LIST_HEAD_INIT(usb_audio_driver.driver_list), 
 	.id_table =	usb_audio_ids,
 };
 
@@ -3643,7 +3642,7 @@ static void usb_audio_constructmixer(struct usb_audio_state *s, unsigned char *b
 	list_add_tail(&ms->list, &s->mixerlist);
 }
 
-static void *usb_audio_parsecontrol(struct usb_device *dev, unsigned char *buffer, unsigned int buflen, unsigned int ctrlif)
+static struct usb_audio_state *usb_audio_parsecontrol(struct usb_device *dev, unsigned char *buffer, unsigned int buflen, unsigned int ctrlif)
 {
 	struct usb_audio_state *s;
 	struct usb_config_descriptor *config = dev->actconfig;
@@ -3766,10 +3765,12 @@ static void *usb_audio_parsecontrol(struct usb_device *dev, unsigned char *buffe
 
 /* we only care for the currently active configuration */
 
-static void *usb_audio_probe(struct usb_device *dev, unsigned int ifnum,
+static int usb_audio_probe(struct usb_interface *intf,
 			   const struct usb_device_id *id)
 {
+	struct usb_device *dev = interface_to_usbdev (intf);
 	struct usb_config_descriptor *config = dev->actconfig;	
+	struct usb_audio_state *s;
 	unsigned char *buffer;
 	unsigned char buf[8];
 	unsigned int i, buflen;
@@ -3789,39 +3790,47 @@ static void *usb_audio_probe(struct usb_device *dev, unsigned int ifnum,
 
 	if (usb_set_configuration(dev, config->bConfigurationValue) < 0) {
 		printk(KERN_ERR "usbaudio: set_configuration failed (ConfigValue 0x%x)\n", config->bConfigurationValue);
-		return NULL;
+		return -EIO;
 	}
 	ret = usb_get_descriptor(dev, USB_DT_CONFIG, i, buf, 8);
 	if (ret < 0) {
 		printk(KERN_ERR "usbaudio: cannot get first 8 bytes of config descriptor %d of device %d (error %d)\n", i, dev->devnum, ret);
-		return NULL;
+		return -EIO;
 	}
 	if (buf[1] != USB_DT_CONFIG || buf[0] < 9) {
 		printk(KERN_ERR "usbaudio: invalid config descriptor %d of device %d\n", i, dev->devnum);
-		return NULL;
+		return -EIO;
 	}
 	buflen = buf[2] | (buf[3] << 8);
 	if (!(buffer = kmalloc(buflen, GFP_KERNEL)))
-		return NULL;
+		return -ENOMEM;
 	ret = usb_get_descriptor(dev, USB_DT_CONFIG, i, buffer, buflen);
 	if (ret < 0) {
 		kfree(buffer);
 		printk(KERN_ERR "usbaudio: cannot get config descriptor %d of device %d (error %d)\n", i, dev->devnum, ret);
-		return NULL;
+		return -EIO;
+	}
+	s = usb_audio_parsecontrol(dev, buffer, buflen, intf->altsetting->bInterfaceNumber);
+	if (s) {
+		dev_set_drvdata (&intf->dev, s);
+		return 0;
 	}
-	return usb_audio_parsecontrol(dev, buffer, buflen, ifnum);
+	return -ENODEV;
 }
 
 
 /* a revoke facility would make things simpler */
 
-static void usb_audio_disconnect(struct usb_device *dev, void *ptr)
+static void usb_audio_disconnect(struct usb_interface *intf)
 {
-	struct usb_audio_state *s = (struct usb_audio_state *)ptr;
+	struct usb_audio_state *s = dev_get_drvdata (&intf->dev);
 	struct list_head *list;
 	struct usb_audiodev *as;
 	struct usb_mixerdev *ms;
 
+	if (!s)
+		return;
+
 	/* we get called with -1 for every audiostreaming interface registered */
 	if (s == (struct usb_audio_state *)-1) {
 		dprintk((KERN_DEBUG "usbaudio: note, usb_audio_disconnect called with -1\n"));
@@ -3835,6 +3844,8 @@ static void usb_audio_disconnect(struct usb_device *dev, void *ptr)
 	list_del(&s->audiodev);
 	INIT_LIST_HEAD(&s->audiodev);
 	s->usbdev = NULL;
+	dev_set_drvdata (&intf->dev, NULL);
+
 	/* deregister all audio and mixer devices, so no new processes can open this device */
 	for(list = s->audiolist.next; list != &s->audiolist; list = list->next) {
 		as = list_entry(list, struct usb_audiodev, list);

drivers/usb/class/bluetty.c

@@ -221,9 +221,9 @@ static void bluetooth_ctrl_callback		(struct urb *urb);
 static void bluetooth_read_bulk_callback	(struct urb *urb);
 static void bluetooth_write_bulk_callback	(struct urb *urb);
 
-static void * usb_bluetooth_probe(struct usb_device *dev, unsigned int ifnum,
+static int usb_bluetooth_probe (struct usb_interface *intf, 
 				const struct usb_device_id *id);
-static void usb_bluetooth_disconnect	(struct usb_device *dev, void *ptr);
+static void usb_bluetooth_disconnect	(struct usb_interface *intf);
 
 
 static struct usb_device_id usb_bluetooth_ids [] = {
@@ -1033,9 +1033,10 @@ static void bluetooth_softint(void *private)
 }
 
 
-static void * usb_bluetooth_probe(struct usb_device *dev, unsigned int ifnum,
+static int usb_bluetooth_probe (struct usb_interface *intf, 
 				const struct usb_device_id *id)
 {
+	struct usb_device *dev = interface_to_usbdev (intf);
 	struct usb_bluetooth *bluetooth = NULL;
 	struct usb_interface_descriptor *interface;
 	struct usb_endpoint_descriptor *endpoint;
@@ -1051,7 +1052,7 @@ static void * usb_bluetooth_probe(struct usb_device *dev, unsigned int ifnum,
 	int num_bulk_in = 0;
 	int num_bulk_out = 0;
 
-	interface = &dev->actconfig->interface[ifnum].altsetting[0];
+	interface = &intf->altsetting[0];
 	control_out_endpoint = interface->bInterfaceNumber;
 
 	/* find the endpoints that we need */
@@ -1088,7 +1089,7 @@ static void * usb_bluetooth_probe(struct usb_device *dev, unsigned int ifnum,
 	    (num_bulk_out != 1) ||
 	    (num_interrupt_in != 1)) {
 		dbg ("%s - improper number of endpoints. Bluetooth driver not bound.", __FUNCTION__);
-		return NULL;
+		return -EIO;
 	}
 
 	MOD_INC_USE_COUNT;
@@ -1099,13 +1100,13 @@ static void * usb_bluetooth_probe(struct usb_device *dev, unsigned int ifnum,
 	if (bluetooth_table[minor]) {
 		err("No more free Bluetooth devices");
 		MOD_DEC_USE_COUNT;
-		return NULL;
+		return -ENODEV;
 	}
 
 	if (!(bluetooth = kmalloc(sizeof(struct usb_bluetooth), GFP_KERNEL))) {
 		err("Out of memory");
 		MOD_DEC_USE_COUNT;
-		return NULL;
+		return -ENOMEM;
 	}
 
 	memset(bluetooth, 0, sizeof(struct usb_bluetooth));
@@ -1191,7 +1192,9 @@ static void * usb_bluetooth_probe(struct usb_device *dev, unsigned int ifnum,
 
 	bluetooth_table[minor] = bluetooth;
 
-	return bluetooth; /* success */
+	/* success */
+	dev_set_drvdata (&intf->dev, bluetooth);
+	return 0;
 
 probe_error:
 	if (bluetooth->read_urb)
@@ -1220,15 +1223,16 @@ static void * usb_bluetooth_probe(struct usb_device *dev, unsigned int ifnum,
 	/* free up any memory that we allocated */
 	kfree (bluetooth);
 	MOD_DEC_USE_COUNT;
-	return NULL;
+	return -EIO;
 }
 
 
-static void usb_bluetooth_disconnect(struct usb_device *dev, void *ptr)
+static void usb_bluetooth_disconnect(struct usb_interface *intf)
 {
-	struct usb_bluetooth *bluetooth = (struct usb_bluetooth *) ptr;
+	struct usb_bluetooth *bluetooth = dev_get_drvdata (&intf->dev);
 	int i;
 
+	dev_set_drvdata (&intf->dev, NULL);
 	if (bluetooth) {
 		if ((bluetooth->open_count) && (bluetooth->tty))
 			tty_hangup(bluetooth->tty);
@@ -1274,7 +1278,6 @@ static void usb_bluetooth_disconnect(struct usb_device *dev, void *ptr)
 
 		/* free up any memory that we allocated */
 		kfree (bluetooth);
-
 	} else {
 		info("device disconnected");
 	}

drivers/usb/class/cdc-acm.c

@@ -507,9 +507,10 @@ static void acm_tty_set_termios(struct tty_struct *tty, struct termios *termios_
  * USB probe and disconnect routines.
  */
 
-static void *acm_probe(struct usb_device *dev, unsigned int ifnum,
+static int acm_probe (struct usb_interface *intf,
 		      const struct usb_device_id *id)
 {
+	struct usb_device *dev;
 	struct acm *acm;
 	struct usb_config_descriptor *cfacm;
 	struct usb_interface_descriptor *ifcom, *ifdata;
@@ -517,6 +518,7 @@ static void *acm_probe(struct usb_device *dev, unsigned int ifnum,
 	int readsize, ctrlsize, minor, i;
 	unsigned char *buf;
 
+	dev = interface_to_usbdev (intf);
 	for (i = 0; i < dev->descriptor.bNumConfigurations; i++) {
 
 		cfacm = dev->config + i;
@@ -561,12 +563,12 @@ static void *acm_probe(struct usb_device *dev, unsigned int ifnum,
 		for (minor = 0; minor < ACM_TTY_MINORS && acm_table[minor]; minor++);
 		if (acm_table[minor]) {
 			err("no more free acm devices");
-			return NULL;
+			return -ENODEV;
 		}
 
 		if (!(acm = kmalloc(sizeof(struct acm), GFP_KERNEL))) {
 			err("out of memory");
-			return NULL;
+			return -ENOMEM;
 		}
 		memset(acm, 0, sizeof(struct acm));
 
@@ -583,21 +585,21 @@ static void *acm_probe(struct usb_device *dev, unsigned int ifnum,
 		if (!(buf = kmalloc(ctrlsize + readsize + acm->writesize, GFP_KERNEL))) {
 			err("out of memory");
 			kfree(acm);
-			return NULL;
+			return -ENOMEM;
 		}
 
 		acm->ctrlurb = usb_alloc_urb(0, GFP_KERNEL);
 		if (!acm->ctrlurb) {
 			err("out of memory");
 			kfree(acm);
-			return NULL;
+			return -ENOMEM;
 		}
 		acm->readurb = usb_alloc_urb(0, GFP_KERNEL);
 		if (!acm->readurb) {
 			err("out of memory");
 			usb_free_urb(acm->ctrlurb);
 			kfree(acm);
-			return NULL;
+			return -ENOMEM;
 		}
 		acm->writeurb = usb_alloc_urb(0, GFP_KERNEL);
 		if (!acm->writeurb) {
@@ -605,7 +607,7 @@ static void *acm_probe(struct usb_device *dev, unsigned int ifnum,
 			usb_free_urb(acm->readurb);
 			usb_free_urb(acm->ctrlurb);
 			kfree(acm);
-			return NULL;
+			return -ENOMEM;
 		}
 
 		usb_fill_int_urb(acm->ctrlurb, dev, usb_rcvintpipe(dev, epctrl->bEndpointAddress),
@@ -631,15 +633,18 @@ static void *acm_probe(struct usb_device *dev, unsigned int ifnum,
 		usb_driver_claim_interface(&acm_driver, acm->iface + 1, acm);
 
 		tty_register_devfs(&acm_tty_driver, 0, minor);
-		return acm_table[minor] = acm;
+
+		acm_table[minor] = acm;
+		dev_set_drvdata (&intf->dev, acm);
+		return 0;
 	}
 
-	return NULL;
+	return -EIO;
 }
 
-static void acm_disconnect(struct usb_device *dev, void *ptr)
+static void acm_disconnect(struct usb_interface *intf)
 {
-	struct acm *acm = ptr;
+	struct acm *acm = dev_get_drvdata (&intf->dev);
 
 	if (!acm || !acm->dev) {
 		dbg("disconnect on nonexisting interface");
@@ -647,6 +652,7 @@ static void acm_disconnect(struct usb_device *dev, void *ptr)
 	}
 
 	acm->dev = NULL;
+	dev_set_drvdata (&intf->dev, NULL);
 
 	usb_unlink_urb(acm->ctrlurb);
 	usb_unlink_urb(acm->readurb);

drivers/usb/class/usb-midi.c

@@ -2020,13 +2020,16 @@ static int detect_by_hand(struct usb_device *d, unsigned int ifnum, struct usb_m
 
 /* ------------------------------------------------------------------------- */
 
-static void *usb_midi_probe(struct usb_device *dev, unsigned int ifnum,
+static int usb_midi_probe(struct usb_interface *intf, 
 			  const struct usb_device_id *id)
 {
 	struct usb_midi_state *s;
+	struct usb_device *dev = interface_to_usbdev(intf);
+	int ifnum = intf->altsetting->bInterfaceNumber;
 
 	s = (struct usb_midi_state *)kmalloc(sizeof(struct usb_midi_state), GFP_KERNEL);
-	if ( !s ) { return NULL; }
+	if ( !s )
+		return -ENOMEM;
 
 	memset( s, 0, sizeof(struct usb_midi_state) );
 	INIT_LIST_HEAD(&s->midiDevList);
@@ -2042,7 +2045,7 @@ static void *usb_midi_probe(struct usb_device *dev, unsigned int ifnum,
 		detect_vendor_specific_device( dev, ifnum, s ) &&
 		detect_yamaha_device( dev, ifnum, s) ) {
 		kfree(s);
-		return NULL;
+		return -EIO;
 	}
 
 	down(&open_sem);
@@ -2053,16 +2056,20 @@ static void *usb_midi_probe(struct usb_device *dev, unsigned int ifnum,
 	MOD_INC_USE_COUNT;
 #endif
 
-	return s;
+	dev_set_drvdata (&intf->dev, s);
+	return 0;
 }
 
 
-static void usb_midi_disconnect(struct usb_device *dev, void *ptr)
+static void usb_midi_disconnect(struct usb_interface *intf)
 {
-	struct usb_midi_state *s = (struct usb_midi_state *)ptr;
+	struct usb_midi_state *s = dev_get_drvdata (&intf->dev);
 	struct list_head      *list;
 	struct usb_mididev    *m;
 
+	if ( !s )
+		return;
+
 	if ( s == (struct usb_midi_state *)-1 ) {
 		return;
 	}
@@ -2073,6 +2080,7 @@ static void usb_midi_disconnect(struct usb_device *dev, void *ptr)
 	list_del(&s->mididev);
 	INIT_LIST_HEAD(&s->mididev);
 	s->usbdev = NULL;
+	dev_set_drvdata (&intf->dev, NULL);
 
 	for ( list = s->midiDevList.next; list != &s->midiDevList; list = list->next ) {
 		m = list_entry(list, struct usb_mididev, list);
@@ -2092,14 +2100,17 @@ static void usb_midi_disconnect(struct usb_device *dev, void *ptr)
 	return;
 }
 
-
+/* we want to look at all devices by hand */
+static struct usb_device_id id_table[] = {
+	{.driver_info = 42},
+	{}
+};
 
 static struct usb_driver usb_midi_driver = {
 	.name =		"midi",
 	.probe =	usb_midi_probe,
 	.disconnect =	usb_midi_disconnect,
-	.id_table =	NULL, 			/* check all devices */
-	.driver_list = LIST_HEAD_INIT(usb_midi_driver.driver_list)
+	.id_table =	id_table,
 };
 
 /* ------------------------------------------------------------------------- */

drivers/usb/class/usblp.c

@@ -795,9 +795,10 @@ static struct file_operations usblp_fops = {
 	.release =	usblp_release,
 };
 
-static void *usblp_probe(struct usb_device *dev, unsigned int ifnum,
+static int usblp_probe(struct usb_interface *intf,
 		       const struct usb_device_id *id)
 {
+	struct usb_device *dev = interface_to_usbdev (intf);
 	struct usblp *usblp = 0;
 	int protocol;
 	int retval;
@@ -813,7 +814,7 @@ static void *usblp_probe(struct usb_device *dev, unsigned int ifnum,
 	usblp->dev = dev;
 	init_MUTEX (&usblp->sem);
 	init_waitqueue_head(&usblp->wait);
-	usblp->ifnum = ifnum;
+	usblp->ifnum = intf->altsetting->bInterfaceNumber;
 
 	retval = usb_register_dev(&usblp_fops, USBLP_MINOR_BASE, 1, &usblp->minor);
 	if (retval) {
@@ -886,12 +887,14 @@ static void *usblp_probe(struct usb_device *dev, unsigned int ifnum,
 
 	info("usblp%d: USB %sdirectional printer dev %d "
 		"if %d alt %d proto %d vid 0x%4.4X pid 0x%4.4X",
-		usblp->minor, usblp->bidir ? "Bi" : "Uni", dev->devnum, ifnum,
+		usblp->minor, usblp->bidir ? "Bi" : "Uni", dev->devnum,
+		usblp->ifnum,
 		usblp->protocol[usblp->current_protocol].alt_setting,
 		usblp->current_protocol, usblp->dev->descriptor.idVendor,
 		usblp->dev->descriptor.idProduct);
 
-	return usblp;
+	dev_set_drvdata (&intf->dev, usblp);
+	return 0;
 
 abort_minor:
 	usb_deregister_dev (1, usblp->minor);
@@ -903,7 +906,7 @@ static void *usblp_probe(struct usb_device *dev, unsigned int ifnum,
 		if (usblp->device_id_string) kfree(usblp->device_id_string);
 		kfree(usblp);
 	}
-	return NULL;
+	return -EIO;
 }
 
 /*
@@ -1065,9 +1068,9 @@ static int usblp_cache_device_id_string(struct usblp *usblp)
 	return length;
 }
 
-static void usblp_disconnect(struct usb_device *dev, void *ptr)
+static void usblp_disconnect(struct usb_interface *intf)
 {
-	struct usblp *usblp = ptr;
+	struct usblp *usblp = dev_get_drvdata (&intf->dev);
 
 	if (!usblp || !usblp->dev) {
 		err("bogus disconnect");
@@ -1077,6 +1080,7 @@ static void usblp_disconnect(struct usb_device *dev, void *ptr)
 	down (&usblp->sem);
 	lock_kernel();
 	usblp->dev = NULL;
+	dev_set_drvdata (&intf->dev, NULL);
 
 	usblp_unlink_urbs(usblp);