Merge master.kernel.org:/pub/scm/linux/kernel/git/gregkh/usb-2.6

* master.kernel.org:/pub/scm/linux/kernel/git/gregkh/usb-2.6: (29 commits)
  USB: Add support for Olimex arm-usb-ocd JTAG interface serial port
  USB: Add support for Sierra Wireless Aircard 595U
  USB: ldusb bugfix
  USB: ftdi_sio: Add USB Product Id for OpenDCC
  USB: fix ratelimit call semantics
  USB: handle errors in power/level attribute
  USB: make the autosuspend workqueue thread freezable
  USB: Fix USB OHCI Subvendor for Toshiba Portege 4000
  USB: usblp: Use correct DMA address in case of probe error
  USB: Fix debug output of ark3116
  USB: Onetouch - switch to using input_dev->dev.parent
  USB: don't try to kzalloc 0 bytes
  USB: remove short initial timeout for device descriptor fetch
  USB: Deref URB after usbmon is done with it
  USB: Remove duplicate IDs from option card driver
  USB: auerswald: fix file release handler
  USB: fsl_usb2_udc: Fix UMTI_WIDE support and a compile warning
  USB: set the correct Interrupt interval in usb_bulk_msg
  USB: New device PID for ftdi_sio driver
  USB: remove unneeded WARN_ON
  ...

Documentation/DocBook/gadget.tmpl

@@ -52,7 +52,7 @@
 
 <toc></toc>
 
-<chapter><title>Introduction</title>
+<chapter id="intro"><title>Introduction</title>
 
 <para>This document presents a Linux-USB "Gadget"
 kernel mode

Documentation/DocBook/usb.tmpl

@@ -185,7 +185,7 @@
 
     </chapter>
 
-<chapter><title>USB-Standard Types</title>
+<chapter id="types"><title>USB-Standard Types</title>
 
     <para>In <filename>&lt;linux/usb/ch9.h&gt;</filename> you will find
     the USB data types defined in chapter 9 of the USB specification.
@@ -197,7 +197,7 @@
 
     </chapter>
 
-<chapter><title>Host-Side Data Types and Macros</title>
+<chapter id="hostside"><title>Host-Side Data Types and Macros</title>
 
     <para>The host side API exposes several layers to drivers, some of
     which are more necessary than others.
@@ -211,7 +211,7 @@
 
     </chapter>
 
-    <chapter><title>USB Core APIs</title>
+    <chapter id="usbcore"><title>USB Core APIs</title>
 
     <para>There are two basic I/O models in the USB API.
     The most elemental one is asynchronous:  drivers submit requests
@@ -248,7 +248,7 @@
 !Edrivers/usb/core/hub.c
     </chapter>
 
-    <chapter><title>Host Controller APIs</title>
+    <chapter id="hcd"><title>Host Controller APIs</title>
 
     <para>These APIs are only for use by host controller drivers,
     most of which implement standard register interfaces such as
@@ -285,7 +285,7 @@
 !Idrivers/usb/core/buffer.c
     </chapter>
 
-    <chapter>
+    <chapter id="usbfs">
 	<title>The USB Filesystem (usbfs)</title>
 
 	<para>This chapter presents the Linux <emphasis>usbfs</emphasis>.
@@ -317,7 +317,7 @@
 	not it has a kernel driver.
 	</para>
 
-	<sect1>
+	<sect1 id="usbfs-files">
 	    <title>What files are in "usbfs"?</title>
 
 	    <para>Conventionally mounted at
@@ -356,7 +356,7 @@
 
 	</sect1>
 
-	<sect1>
+	<sect1 id="usbfs-fstab">
 	    <title>Mounting and Access Control</title>
 
 	    <para>There are a number of mount options for usbfs, which will
@@ -439,7 +439,7 @@
 
 	</sect1>
 
-	<sect1>
+	<sect1 id="usbfs-devices">
 	    <title>/proc/bus/usb/devices</title>
 
 	    <para>This file is handy for status viewing tools in user
@@ -473,7 +473,7 @@ for (;;) {
 	    </para>
 	</sect1>
 
-	<sect1>
+	<sect1 id="usbfs-bbbddd">
 	    <title>/proc/bus/usb/BBB/DDD</title>
 
 	    <para>Use these files in one of these basic ways:
@@ -510,7 +510,7 @@ for (;;) {
 	    </sect1>
 
 
-	<sect1>
+	<sect1 id="usbfs-lifecycle">
 	    <title>Life Cycle of User Mode Drivers</title>
 
 	    <para>Such a driver first needs to find a device file
@@ -565,7 +565,7 @@ for (;;) {
 
 	    </sect1>
 
-	<sect1><title>The ioctl() Requests</title>
+	<sect1 id="usbfs-ioctl"><title>The ioctl() Requests</title>
 
 	    <para>To use these ioctls, you need to include the following
 	    headers in your userspace program:
@@ -604,7 +604,7 @@ for (;;) {
 	    </para>
 
 
-	    <sect2>
+	    <sect2 id="usbfs-mgmt">
 		<title>Management/Status Requests</title>
 
 		<para>A number of usbfs requests don't deal very directly
@@ -736,7 +736,7 @@ usbdev_ioctl (int fd, int ifno, unsigned request, void *param)
 
 		</sect2>
 
-	    <sect2>
+	    <sect2 id="usbfs-sync">
 		<title>Synchronous I/O Support</title>
 
 		<para>Synchronous requests involve the kernel blocking
@@ -865,7 +865,7 @@ usbdev_ioctl (int fd, int ifno, unsigned request, void *param)
 		</variablelist>
 	    </sect2>
 
-	    <sect2>
+	    <sect2 id="usbfs-async">
 		<title>Asynchronous I/O Support</title>
 
 		<para>As mentioned above, there are situations where it may be

drivers/net/usb/cdc_ether.c

@@ -91,6 +91,22 @@ int usbnet_generic_cdc_bind(struct usbnet *dev, struct usb_interface *intf)
 				"CDC descriptors on config\n");
 	}
 
+	/* Maybe CDC descriptors are after the endpoint?  This bug has
+	 * been seen on some 2Wire Inc RNDIS-ish products.
+	 */
+	if (len == 0) {
+		struct usb_host_endpoint	*hep;
+
+		hep = intf->cur_altsetting->endpoint;
+		if (hep) {
+			buf = hep->extra;
+			len = hep->extralen;
+		}
+		if (len)
+			dev_dbg(&intf->dev,
+				"CDC descriptors on endpoint\n");
+	}
+
 	/* this assumes that if there's a non-RNDIS vendor variant
 	 * of cdc-acm, it'll fail RNDIS requests cleanly.
 	 */

drivers/net/usb/rndis_host.c

@@ -515,6 +515,7 @@ static int rndis_bind(struct usbnet *dev, struct usb_interface *intf)
 		dev_err(&intf->dev,
 			"dev can't take %u byte packets (max %u)\n",
 			dev->hard_mtu, tmp);
+		retval = -EINVAL;
 		goto fail_and_release;
 	}
 

drivers/net/usb/usbnet.c

@@ -1252,20 +1252,23 @@ EXPORT_SYMBOL_GPL(usbnet_probe);
 
 /*-------------------------------------------------------------------------*/
 
-/* FIXME these suspend/resume methods assume non-CDC style
- * devices, with only one interface.
+/*
+ * suspend the whole driver as soon as the first interface is suspended
+ * resume only when the last interface is resumed
  */
 
 int usbnet_suspend (struct usb_interface *intf, pm_message_t message)
 {
 	struct usbnet		*dev = usb_get_intfdata(intf);
 
+	if (!dev->suspend_count++) {
 		/* accelerate emptying of the rx and queues, to avoid
 		 * having everything error out.
 		 */
 		netif_device_detach (dev->net);
 		(void) unlink_urbs (dev, &dev->rxq);
 		(void) unlink_urbs (dev, &dev->txq);
+	}
 	return 0;
 }
 EXPORT_SYMBOL_GPL(usbnet_suspend);
@@ -1274,8 +1277,10 @@ int usbnet_resume (struct usb_interface *intf)
 {
 	struct usbnet		*dev = usb_get_intfdata(intf);
 
+	if (!--dev->suspend_count) {
 		netif_device_attach (dev->net);
 		tasklet_schedule (&dev->bh);
+	}
 	return 0;
 }
 EXPORT_SYMBOL_GPL(usbnet_resume);

drivers/net/usb/usbnet.h

@@ -32,6 +32,7 @@ struct usbnet {
 	const char		*driver_name;
 	wait_queue_head_t	*wait;
 	struct mutex		phy_mutex;
+	unsigned char		suspend_count;
 
 	/* i/o info: pipes etc */
 	unsigned		in, out;

drivers/usb/class/usblp.c

@@ -1003,7 +1003,7 @@ static int usblp_probe(struct usb_interface *intf,
 				usblp->writebuf, usblp->writeurb->transfer_dma);
 		if (usblp->readbuf)
 			usb_buffer_free (usblp->dev, USBLP_BUF_SIZE,
-				usblp->readbuf, usblp->writeurb->transfer_dma);
+				usblp->readbuf, usblp->readurb->transfer_dma);
 		kfree(usblp->statusbuf);
 		kfree(usblp->device_id_string);
 		usb_free_urb(usblp->writeurb);

drivers/usb/core/config.c

@@ -185,10 +185,12 @@ static int usb_parse_interface(struct device *ddev, int cfgno,
 		num_ep = USB_MAXENDPOINTS;
 	}
 
+	if (num_ep > 0) {	/* Can't allocate 0 bytes */
 		len = sizeof(struct usb_host_endpoint) * num_ep;
 		alt->endpoint = kzalloc(len, GFP_KERNEL);
 		if (!alt->endpoint)
 			return -ENOMEM;
+	}
 
 	/* Parse all the endpoint descriptors */
 	n = 0;

drivers/usb/core/driver.c

@@ -983,7 +983,10 @@ static int autosuspend_check(struct usb_device *udev)
 
 #else
 
-#define autosuspend_check(udev)		0
+static inline int autosuspend_check(struct usb_device *udev)
+{
+	return 0;
+}
 
 #endif	/* CONFIG_USB_SUSPEND */
 
@@ -1041,7 +1044,6 @@ static int usb_suspend_both(struct usb_device *udev, pm_message_t msg)
 		if (status < 0)
 			goto done;
 	}
-	cancel_delayed_work(&udev->autosuspend);
 
 	/* Suspend all the interfaces and then udev itself */
 	if (udev->actconfig) {
@@ -1062,9 +1064,16 @@ static int usb_suspend_both(struct usb_device *udev, pm_message_t msg)
 			usb_resume_interface(intf);
 		}
 
+		/* Try another autosuspend when the interfaces aren't busy */
+		if (udev->auto_pm)
+			autosuspend_check(udev);
+
 	/* If the suspend succeeded, propagate it up the tree */
-	} else if (parent)
+	} else {
+		cancel_delayed_work(&udev->autosuspend);
+		if (parent)
 			usb_autosuspend_device(parent);
+	}
 
  done:
 	// dev_dbg(&udev->dev, "%s: status %d\n", __FUNCTION__, status);
@@ -1475,6 +1484,7 @@ int usb_external_resume_device(struct usb_device *udev)
 	usb_pm_lock(udev);
 	udev->auto_pm = 0;
 	status = usb_resume_both(udev);
+	udev->last_busy = jiffies;
 	usb_pm_unlock(udev);
 
 	/* Now that the device is awake, we can start trying to autosuspend

drivers/usb/core/hcd.c

@@ -1018,8 +1018,8 @@ int usb_hcd_submit_urb (struct urb *urb, gfp_t mem_flags)
 		atomic_dec (&urb->use_count);
 		if (urb->reject)
 			wake_up (&usb_kill_urb_queue);
-		usb_put_urb (urb);
 		usbmon_urb_submit_error(&hcd->self, urb, status);
+		usb_put_urb (urb);
 	}
 	return status;
 }
@@ -1175,10 +1175,6 @@ void usb_hcd_endpoint_disable (struct usb_device *udev,
 	struct urb		*urb;
 
 	hcd = bus_to_hcd(udev->bus);
-
-	WARN_ON (!HC_IS_RUNNING (hcd->state) && hcd->state != HC_STATE_HALT &&
-			udev->state != USB_STATE_NOTATTACHED);
-
 	local_irq_disable ();
 
 	/* ep is already gone from udev->ep_{in,out}[]; no more submits */

drivers/usb/core/hub.c

@@ -2201,14 +2201,9 @@ hub_port_init (struct usb_hub *hub, struct usb_device *udev, int port1,
 				continue;
 			}
 
-			/* Use a short timeout the first time through,
-			 * so that recalcitrant full-speed devices with
-			 * 8- or 16-byte ep0-maxpackets won't slow things
-			 * down tremendously by NAKing the unexpectedly
-			 * early status stage.  Also, retry on all errors;
-			 * some devices are flakey.
-			 * 255 is for WUSB devices, we actually need to use 512.
-			 * WUSB1.0[4.8.1].
+			/* Retry on all errors; some devices are flakey.
+			 * 255 is for WUSB devices, we actually need to use
+			 * 512 (WUSB1.0[4.8.1]).
 			 */
 			for (j = 0; j < 3; ++j) {
 				buf->bMaxPacketSize0 = 0;
@@ -2216,7 +2211,7 @@ hub_port_init (struct usb_hub *hub, struct usb_device *udev, int port1,
 					USB_REQ_GET_DESCRIPTOR, USB_DIR_IN,
 					USB_DT_DEVICE << 8, 0,
 					buf, GET_DESCRIPTOR_BUFSIZE,
-					(i ? USB_CTRL_GET_TIMEOUT : 1000));
+					USB_CTRL_GET_TIMEOUT);
 				switch (buf->bMaxPacketSize0) {
 				case 8: case 16: case 32: case 64: case 255:
 					if (buf->bDescriptorType ==
@@ -2426,10 +2421,10 @@ static void hub_port_connect_change(struct usb_hub *hub, int port1,
 
 	if (portchange & USB_PORT_STAT_C_CONNECTION) {
 		status = hub_port_debounce(hub, port1);
-		if (status < 0 && printk_ratelimit()) {
-			dev_err (hub_dev,
-				"connect-debounce failed, port %d disabled\n",
-				port1);
+		if (status < 0) {
+			if (printk_ratelimit())
+				dev_err (hub_dev, "connect-debounce failed, "
+						"port %d disabled\n", port1);
 			goto done;
 		}
 		portstatus = status;

drivers/usb/core/message.c

@@ -221,15 +221,10 @@ int usb_bulk_msg(struct usb_device *usb_dev, unsigned int pipe,
 
 	if ((ep->desc.bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) ==
 			USB_ENDPOINT_XFER_INT) {
-		int interval;
-
-		if (usb_dev->speed == USB_SPEED_HIGH)
-			interval = 1 << min(15, ep->desc.bInterval - 1);
-		else
-			interval = ep->desc.bInterval;
 		pipe = (pipe & ~(3 << 30)) | (PIPE_INTERRUPT << 30);
 		usb_fill_int_urb(urb, usb_dev, pipe, data, len,
-				usb_api_blocking_completion, NULL, interval);
+				usb_api_blocking_completion, NULL,
+				ep->desc.bInterval);
 	} else
 		usb_fill_bulk_urb(urb, usb_dev, pipe, data, len,
 				usb_api_blocking_completion, NULL);

drivers/usb/core/sysfs.c

@@ -232,12 +232,15 @@ set_level(struct device *dev, struct device_attribute *attr,
 	int len = count;
 	char *cp;
 	int rc = 0;
+	int old_autosuspend_disabled, old_autoresume_disabled;
 
 	cp = memchr(buf, '\n', count);
 	if (cp)
 		len = cp - buf;
 
 	usb_lock_device(udev);
+	old_autosuspend_disabled = udev->autosuspend_disabled;
+	old_autoresume_disabled = udev->autoresume_disabled;
 
 	/* Setting the flags without calling usb_pm_lock is a subject to
 	 * races, but who cares...
@@ -263,6 +266,10 @@ set_level(struct device *dev, struct device_attribute *attr,
 	} else
 		rc = -EINVAL;
 
+	if (rc) {
+		udev->autosuspend_disabled = old_autosuspend_disabled;
+		udev->autoresume_disabled = old_autoresume_disabled;
+	}
 	usb_unlock_device(udev);
 	return (rc < 0 ? rc : count);
 }

drivers/usb/core/usb.c

@@ -205,7 +205,11 @@ struct device_type usb_device_type = {
 
 static int ksuspend_usb_init(void)
 {
-	ksuspend_usb_wq = create_singlethread_workqueue("ksuspend_usbd");
+	/* This workqueue is supposed to be both freezable and
+	 * singlethreaded.  Its job doesn't justify running on more
+	 * than one CPU.
+	 */
+	ksuspend_usb_wq = create_freezeable_workqueue("ksuspend_usbd");
 	if (!ksuspend_usb_wq)
 		return -ENOMEM;
 	return 0;

drivers/usb/gadget/fsl_usb2_udc.c

@@ -228,13 +228,15 @@ static int dr_controller_setup(struct fsl_udc *udc)
 
 	/* Config PHY interface */
 	portctrl = fsl_readl(&dr_regs->portsc1);
-	portctrl &= ~PORTSCX_PHY_TYPE_SEL;
+	portctrl &= ~(PORTSCX_PHY_TYPE_SEL & PORTSCX_PORT_WIDTH);
 	switch (udc->phy_mode) {
 	case FSL_USB2_PHY_ULPI:
 		portctrl |= PORTSCX_PTS_ULPI;
 		break;
-	case FSL_USB2_PHY_UTMI:
 	case FSL_USB2_PHY_UTMI_WIDE:
+		portctrl |= PORTSCX_PTW_16BIT;
+		/* fall through */
+	case FSL_USB2_PHY_UTMI:
 		portctrl |= PORTSCX_PTS_UTMI;
 		break;
 	case FSL_USB2_PHY_SERIAL:
@@ -625,7 +627,7 @@ static void fsl_free_buffer(struct usb_ep *_ep, void *buf,
 	struct fsl_ep *ep;
 
 	if (!_ep)
-		return NULL;
+		return;
 
 	ep = container_of(_ep, struct fsl_ep, ep);
 

drivers/usb/host/ohci-pci.c

@@ -137,7 +137,7 @@ static const struct pci_device_id ohci_pci_quirks[] = {
 		/* Toshiba portege 4000 */
 		.vendor		= PCI_VENDOR_ID_AL,
 		.device		= 0x5237,
-		.subvendor	= PCI_VENDOR_ID_TOSHIBA_2,
+		.subvendor	= PCI_VENDOR_ID_TOSHIBA,
 		.subdevice	= 0x0004,
 		.driver_data	= (unsigned long) broken_suspend,
 	},

drivers/usb/host/pci-quirks.c

@@ -44,6 +44,7 @@
 #define EHCI_USBSTS		4		/* status register */
 #define EHCI_USBSTS_HALTED	(1 << 12)	/* HCHalted bit */
 #define EHCI_USBINTR		8		/* interrupt register */
+#define EHCI_CONFIGFLAG		0x40		/* configured flag register */
 #define EHCI_USBLEGSUP		0		/* legacy support register */
 #define EHCI_USBLEGSUP_BIOS	(1 << 16)	/* BIOS semaphore */
 #define EHCI_USBLEGSUP_OS	(1 << 24)	/* OS semaphore */
@@ -216,6 +217,7 @@ static void __devinit quirk_usb_disable_ehci(struct pci_dev *pdev)
 	u32	hcc_params, val;
 	u8	offset, cap_length;
 	int	count = 256/4;
+	int	tried_handoff = 0;
 
 	if (!mmio_resource_enabled(pdev, 0))
 		return;
@@ -273,6 +275,7 @@ static void __devinit quirk_usb_disable_ehci(struct pci_dev *pdev)
 			 */
 			msec = 5000;
 			while ((cap & EHCI_USBLEGSUP_BIOS) && (msec > 0)) {
+				tried_handoff = 1;
 				msleep(10);
 				msec -= 10;
 				pci_read_config_dword(pdev, offset, &cap);
@@ -292,6 +295,12 @@ static void __devinit quirk_usb_disable_ehci(struct pci_dev *pdev)
 			pci_write_config_dword(pdev,
 					offset + EHCI_USBLEGCTLSTS,
 					0);
+
+			/* If the BIOS ever owned the controller then we
+			 * can't expect any power sessions to remain intact.
+			 */
+			if (tried_handoff)
+				writel(0, op_reg_base + EHCI_CONFIGFLAG);
 			break;
 		case 0:			/* illegal reserved capability */
 			cap = 0;

drivers/usb/host/u132-hcd.c

@@ -57,6 +57,13 @@
 #include <asm/system.h>
 #include <asm/byteorder.h>
 #include "../core/hcd.h"
+
+	/* FIXME ohci.h is ONLY for internal use by the OHCI driver.
+	 * If you're going to try stuff like this, you need to split
+	 * out shareable stuff (register declarations?) into its own
+	 * file, maybe name <linux/usb/ohci.h>
+	 */
+
 #include "ohci.h"
 #define OHCI_CONTROL_INIT OHCI_CTRL_CBSR
 #define OHCI_INTR_INIT (OHCI_INTR_MIE | OHCI_INTR_UE | OHCI_INTR_RD | \
@@ -173,11 +180,6 @@ struct u132_ring {
         struct u132_endp *curr_endp;
         struct delayed_work scheduler;
 };
-#define OHCI_QUIRK_AMD756 0x01
-#define OHCI_QUIRK_SUPERIO 0x02
-#define OHCI_QUIRK_INITRESET 0x04
-#define OHCI_BIG_ENDIAN 0x08
-#define OHCI_QUIRK_ZFMICRO 0x10
 struct u132 {
         struct kref kref;
         struct list_head u132_list;

drivers/usb/misc/auerswald.c

@@ -1822,16 +1822,10 @@ static int auerchar_release (struct inode *inode, struct file *file)
 	pauerswald_t cp;
 	dbg("release");
 
-	/* get the mutexes */
-	if (down_interruptible (&ccp->mutex)) {
-		return -ERESTARTSYS;
-	}
+	down(&ccp->mutex);
 	cp = ccp->auerdev;
 	if (cp) {
-		if (down_interruptible (&cp->mutex)) {
-			up (&ccp->mutex);
-			return -ERESTARTSYS;
-		}
+		down(&cp->mutex);
 		/* remove an open service */
 		auerswald_removeservice (cp, &ccp->scontext);
 		/* detach from device */

drivers/usb/misc/ftdi-elan.c

@@ -73,6 +73,13 @@ static struct list_head ftdi_static_list;
 #include "usb_u132.h"
 #include <asm/io.h>
 #include "../core/hcd.h"
+
+	/* FIXME ohci.h is ONLY for internal use by the OHCI driver.
+	 * If you're going to try stuff like this, you need to split
+	 * out shareable stuff (register declarations?) into its own
+	 * file, maybe name <linux/usb/ohci.h>
+	 */
+
 #include "../host/ohci.h"
 /* Define these values to match your devices*/
 #define USB_FTDI_ELAN_VENDOR_ID 0x0403
@@ -2300,10 +2307,7 @@ static int ftdi_elan_checkingPCI(struct usb_ftdi *ftdi)
         offsetof(struct ohci_regs, member), 0, data);
 #define ftdi_write_pcimem(ftdi, member, data) ftdi_elan_write_pcimem(ftdi, \
         offsetof(struct ohci_regs, member), 0, data);
-#define OHCI_QUIRK_AMD756 0x01
-#define OHCI_QUIRK_SUPERIO 0x02
-#define OHCI_QUIRK_INITRESET 0x04
-#define OHCI_BIG_ENDIAN 0x08
+
 #define OHCI_CONTROL_INIT OHCI_CTRL_CBSR
 #define OHCI_INTR_INIT (OHCI_INTR_MIE | OHCI_INTR_UE | OHCI_INTR_RD | \
         OHCI_INTR_WDH)

drivers/usb/misc/ldusb.c

@@ -165,6 +165,8 @@ struct ld_usb {
 	size_t			interrupt_in_endpoint_size;
 	int			interrupt_in_running;
 	int			interrupt_in_done;
+	int			buffer_overflow;
+	spinlock_t		rbsl;
 
 	char*			interrupt_out_buffer;
 	struct usb_endpoint_descriptor* interrupt_out_endpoint;
@@ -230,10 +232,12 @@ static void ld_usb_interrupt_in_callback(struct urb *urb)
 		} else {
 			dbg_info(&dev->intf->dev, "%s: nonzero status received: %d\n",
 				 __FUNCTION__, urb->status);
+			spin_lock(&dev->rbsl);
 			goto resubmit; /* maybe we can recover */
 		}
 	}
 
+	spin_lock(&dev->rbsl);
 	if (urb->actual_length > 0) {
 		next_ring_head = (dev->ring_head+1) % ring_buffer_size;
 		if (next_ring_head != dev->ring_tail) {
@@ -244,21 +248,25 @@ static void ld_usb_interrupt_in_callback(struct urb *urb)
 			dev->ring_head = next_ring_head;
 			dbg_info(&dev->intf->dev, "%s: received %d bytes\n",
 				 __FUNCTION__, urb->actual_length);
-		} else
+		} else {
 			dev_warn(&dev->intf->dev,
 				 "Ring buffer overflow, %d bytes dropped\n",
 				 urb->actual_length);
+			dev->buffer_overflow = 1;
+		}
 	}
 
 resubmit:
 	/* resubmit if we're still running */
-	if (dev->interrupt_in_running && dev->intf) {
+	if (dev->interrupt_in_running && !dev->buffer_overflow && dev->intf) {
 		retval = usb_submit_urb(dev->interrupt_in_urb, GFP_ATOMIC);
-		if (retval)
+		if (retval) {
 			dev_err(&dev->intf->dev,
 				"usb_submit_urb failed (%d)\n", retval);
+			dev->buffer_overflow = 1;
 		}
-
+	}
+	spin_unlock(&dev->rbsl);
 exit:
 	dev->interrupt_in_done = 1;
 	wake_up_interruptible(&dev->read_wait);
@@ -330,6 +338,7 @@ static int ld_usb_open(struct inode *inode, struct file *file)
 	/* initialize in direction */
 	dev->ring_head = 0;
 	dev->ring_tail = 0;
+	dev->buffer_overflow = 0;
 	usb_fill_int_urb(dev->interrupt_in_urb,
 			 interface_to_usbdev(interface),
 			 usb_rcvintpipe(interface_to_usbdev(interface),
@@ -439,6 +448,7 @@ static ssize_t ld_usb_read(struct file *file, char __user *buffer, size_t count,
 	size_t *actual_buffer;
 	size_t bytes_to_read;
 	int retval = 0;
+	int rv;
 
 	dev = file->private_data;
 
@@ -460,7 +470,10 @@ static ssize_t ld_usb_read(struct file *file, char __user *buffer, size_t count,
 	}
 
 	/* wait for data */
+	spin_lock_irq(&dev->rbsl);
 	if (dev->ring_head == dev->ring_tail) {
+		dev->interrupt_in_done = 0;
+		spin_unlock_irq(&dev->rbsl);
 		if (file->f_flags & O_NONBLOCK) {
 			retval = -EAGAIN;
 			goto unlock_exit;
@@ -468,6 +481,8 @@ static ssize_t ld_usb_read(struct file *file, char __user *buffer, size_t count,
 		retval = wait_event_interruptible(dev->read_wait, dev->interrupt_in_done);
 		if (retval < 0)
 			goto unlock_exit;
+	} else {
+		spin_unlock_irq(&dev->rbsl);
 	}
 
 	/* actual_buffer contains actual_length + interrupt_in_buffer */
@@ -486,6 +501,17 @@ static ssize_t ld_usb_read(struct file *file, char __user *buffer, size_t count,
 
 	retval = bytes_to_read;
 
+	spin_lock_irq(&dev->rbsl);
+	if (dev->buffer_overflow) {
+		dev->buffer_overflow = 0;
+		spin_unlock_irq(&dev->rbsl);
+		rv = usb_submit_urb(dev->interrupt_in_urb, GFP_KERNEL);
+		if (rv < 0)
+			dev->buffer_overflow = 1;
+	} else {
+		spin_unlock_irq(&dev->rbsl);
+	}
+
 unlock_exit:
 	/* unlock the device */
 	up(&dev->sem);
@@ -635,6 +661,7 @@ static int ld_usb_probe(struct usb_interface *intf, const struct usb_device_id *
 		goto exit;
 	}
 	init_MUTEX(&dev->sem);
+	spin_lock_init(&dev->rbsl);
 	dev->intf = intf;
 	init_waitqueue_head(&dev->read_wait);
 	init_waitqueue_head(&dev->write_wait);

drivers/usb/serial/ark3116.c

@@ -63,7 +63,8 @@ static inline void ARK3116_RCV(struct usb_serial *serial, int seq,
 				 request, requesttype, value, index,
 				 buf, 0x0000001, 1000);
 	if (result)
-		dbg("%03d < %d bytes [0x%02X]", seq, result, buf[0]);
+		dbg("%03d < %d bytes [0x%02X]", seq, result,
+		    ((unsigned char *)buf)[0]);
 	else
 		dbg("%03d < 0 bytes", seq);
 }

drivers/usb/serial/ftdi_sio.c

@@ -273,12 +273,18 @@ static __u16 product;
 
 /* struct ftdi_sio_quirk is used by devices requiring special attention. */
 struct ftdi_sio_quirk {
+	int (*probe)(struct usb_serial *);
 	void (*setup)(struct usb_serial *); /* Special settings during startup. */
 };
 
+static int   ftdi_olimex_probe		(struct usb_serial *serial);
 static void  ftdi_USB_UIRT_setup	(struct usb_serial *serial);
 static void  ftdi_HE_TIRA1_setup	(struct usb_serial *serial);
 
+static struct ftdi_sio_quirk ftdi_olimex_quirk = {
+	.probe	= ftdi_olimex_probe,
+};
+
 static struct ftdi_sio_quirk ftdi_USB_UIRT_quirk = {
 	.setup = ftdi_USB_UIRT_setup,
 };
@@ -319,6 +325,7 @@ static struct usb_device_id id_table_combined [] = {
 	{ USB_DEVICE(FTDI_VID, FTDI_8U2232C_PID) },
 	{ USB_DEVICE(FTDI_VID, FTDI_MICRO_CHAMELEON_PID) },
 	{ USB_DEVICE(FTDI_VID, FTDI_RELAIS_PID) },
+	{ USB_DEVICE(FTDI_VID, FTDI_OPENDCC_PID) },
 	{ USB_DEVICE(INTERBIOMETRICS_VID, INTERBIOMETRICS_IOBOARD_PID) },
 	{ USB_DEVICE(INTERBIOMETRICS_VID, INTERBIOMETRICS_MINI_IOBOARD_PID) },
 	{ USB_DEVICE(FTDI_VID, FTDI_XF_632_PID) },
@@ -525,6 +532,9 @@ static struct usb_device_id id_table_combined [] = {
 	{ USB_DEVICE(FTDI_VID, FTDI_TACTRIX_OPENPORT_13U_PID) },
 	{ USB_DEVICE(ELEKTOR_VID, ELEKTOR_FT323R_PID) },
 	{ USB_DEVICE(TELLDUS_VID, TELLDUS_TELLSTICK_PID) },
+	{ USB_DEVICE(FTDI_VID, FTDI_MAXSTREAM_PID) },
+	{ USB_DEVICE(OLIMEX_VID, OLIMEX_ARM_USB_OCD_PID),
+		.driver_info = (kernel_ulong_t)&ftdi_olimex_quirk },
 	{ },					/* Optional parameter entry */
 	{ }					/* Terminating entry */
 };
@@ -669,7 +679,7 @@ static struct usb_serial_driver ftdi_sio_device = {
 
 /*
  * ***************************************************************************
- * Utlity functions
+ * Utility functions
  * ***************************************************************************
  */
 
@@ -1171,9 +1181,17 @@ static void remove_sysfs_attrs(struct usb_serial_port *port)
 /* Probe function to check for special devices */
 static int ftdi_sio_probe (struct usb_serial *serial, const struct usb_device_id *id)
 {
+	struct ftdi_sio_quirk *quirk = (struct ftdi_sio_quirk *)id->driver_info;
+
+	if (quirk && quirk->probe) {
+		int ret = quirk->probe(serial);
+		if (ret != 0)
+			return ret;
+	}
+
 	usb_set_serial_data(serial, (void *)id->driver_info);
 
-	return (0);
+	return 0;
 }
 
 static int ftdi_sio_port_probe(struct usb_serial_port *port)
@@ -1268,6 +1286,24 @@ static void ftdi_HE_TIRA1_setup (struct usb_serial *serial)
 	priv->force_rtscts = 1;
 } /* ftdi_HE_TIRA1_setup */
 
+/*
+ * First port on Olimex arm-usb-ocd is reserved for JTAG interface
+ * and can be accessed from userspace using openocd.
+ */
+static int ftdi_olimex_probe(struct usb_serial *serial)
+{
+	struct usb_device *udev = serial->dev;
+	struct usb_interface *interface = serial->interface;
+
+	dbg("%s",__FUNCTION__);
+
+	if (interface == udev->actconfig->interface[0]) {
+		info("Ignoring reserved serial port on Olimex arm-usb-ocd\n");
+		return -ENODEV;
+	}
+
+	return 0;
+}
 
 /* ftdi_shutdown is called from usbserial:usb_serial_disconnect
  *   it is called when the usb device is disconnected

drivers/usb/serial/ftdi_sio.h

@@ -60,6 +60,9 @@
 /* DMX4ALL DMX Interfaces */
 #define FTDI_DMX4ALL 0xC850
 
+/* OpenDCC (www.opendcc.de) product id */
+#define FTDI_OPENDCC_PID	0xBFD8
+
 /* www.crystalfontz.com devices - thanx for providing free devices for evaluation ! */
 /* they use the ftdi chipset for the USB interface and the vendor id is the same */
 #define FTDI_XF_632_PID 0xFC08	/* 632: 16x2 Character Display */
@@ -518,6 +521,15 @@
 #define FTDI_IBS_PEDO_PID	0xff3e  /* IBS PEDO-Modem (RF modem 868.35 MHz) */
 #define FTDI_IBS_PROD_PID	0xff3f  /* future device */
 
+/*
+ *  MaxStream devices	www.maxstream.net
+ */
+#define FTDI_MAXSTREAM_PID	0xEE18	/* Xbee PKG-U Module */
+
+/* Olimex */
+#define OLIMEX_VID			0x15BA
+#define OLIMEX_ARM_USB_OCD_PID		0x0003
+
 /* Commands */
 #define FTDI_SIO_RESET 		0 /* Reset the port */
 #define FTDI_SIO_MODEM_CTRL 	1 /* Set the modem control register */

drivers/usb/serial/mos7840.c

@@ -769,11 +769,6 @@ static void mos7840_bulk_out_data_callback(struct urb *urb)
 		return;
 	}
 
-	if (!mos7840_port) {
-		dbg("%s", "NULL mos7840_port pointer \n");
-		return;
-	}
-
 	if (mos7840_port_paranoia_check(mos7840_port->port, __FUNCTION__)) {
 		dbg("%s", "Port Paranoia failed \n");
 		return;

drivers/usb/serial/omninet.c

@@ -165,12 +165,10 @@ static int omninet_open (struct usb_serial_port *port, struct file *filp)
 {
 	struct usb_serial	*serial = port->serial;
 	struct usb_serial_port	*wport;
-	struct omninet_data	*od = usb_get_serial_port_data(port);
 	int			result = 0;
 
 	dbg("%s - port %d", __FUNCTION__, port->number);
 
-	od = kmalloc( sizeof(struct omninet_data), GFP_KERNEL );
 	wport = serial->port[1];
 	wport->tty = port->tty;
 

drivers/usb/serial/option.c

@@ -165,7 +165,6 @@ static struct usb_device_id option_ids[] = {
 	{ USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, 0x1410) }, /* Novatel U740 */
 	{ USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, 0x1420) }, /* Novatel EU870 */
 	{ USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, 0x1430) }, /* Novatel Merlin XU870 HSDPA/3G */
-	{ USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, 0x1430) }, /* Novatel XU870 */
 	{ USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, 0x2100) }, /* Novatel EV620 CDMA/EV-DO */
 	{ USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, 0x2110) }, /* Novatel Merlin ES620 / Merlin ES720 / Ovation U720 */
 	{ USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, 0x2130) }, /* Novatel Merlin ES620 SM Bus */

drivers/usb/serial/sierra.c

@@ -35,6 +35,7 @@ static struct usb_device_id id_table [] = {
 	{ USB_DEVICE(0x1199, 0x0218) },	/* Sierra Wireless MC5720 */
 	{ USB_DEVICE(0x1199, 0x0020) },	/* Sierra Wireless MC5725 */
 	{ USB_DEVICE(0x1199, 0x0019) },	/* Sierra Wireless AirCard 595 */
+	{ USB_DEVICE(0x1199, 0x0120) },	/* Sierra Wireless AirCard 595U */
 	{ USB_DEVICE(0x1199, 0x0021) },	/* Sierra Wireless AirCard 597E */
 	{ USB_DEVICE(0x1199, 0x6802) },	/* Sierra Wireless MC8755 */
 	{ USB_DEVICE(0x1199, 0x6804) },	/* Sierra Wireless MC8755 */
@@ -60,6 +61,7 @@ static struct usb_device_id id_table_3port [] = {
 	{ USB_DEVICE(0x1199, 0x0218) },	/* Sierra Wireless MC5720 */
 	{ USB_DEVICE(0x1199, 0x0020) },	/* Sierra Wireless MC5725 */
 	{ USB_DEVICE(0x1199, 0x0019) },	/* Sierra Wireless AirCard 595 */
+	{ USB_DEVICE(0x1199, 0x0120) },	/* Sierra Wireless AirCard 595U */
 	{ USB_DEVICE(0x1199, 0x0021) },	/* Sierra Wireless AirCard 597E */
 	{ USB_DEVICE(0x1199, 0x6802) },	/* Sierra Wireless MC8755 */
 	{ USB_DEVICE(0x1199, 0x6804) },	/* Sierra Wireless MC8755 */

drivers/usb/storage/onetouch.c

@@ -84,7 +84,7 @@ static void usb_onetouch_irq(struct urb *urb)
 
 static int usb_onetouch_open(struct input_dev *dev)
 {
-	struct usb_onetouch *onetouch = dev->private;
+	struct usb_onetouch *onetouch = input_get_drvdata(dev);
 
 	onetouch->is_open = 1;
 	onetouch->irq->dev = onetouch->udev;
@@ -98,7 +98,7 @@ static int usb_onetouch_open(struct input_dev *dev)
 
 static void usb_onetouch_close(struct input_dev *dev)
 {
-	struct usb_onetouch *onetouch = dev->private;
+	struct usb_onetouch *onetouch = input_get_drvdata(dev);
 
 	usb_kill_urb(onetouch->irq);
 	onetouch->is_open = 0;
@@ -185,13 +185,14 @@ int onetouch_connect_input(struct us_data *ss)
 	input_dev->name = onetouch->name;
 	input_dev->phys = onetouch->phys;
 	usb_to_input_id(udev, &input_dev->id);
-	input_dev->cdev.dev = &udev->dev;
+	input_dev->dev.parent = &udev->dev;
 
 	set_bit(EV_KEY, input_dev->evbit);
 	set_bit(ONETOUCH_BUTTON, input_dev->keybit);
 	clear_bit(0, input_dev->keybit);
 
-	input_dev->private = onetouch;
+	input_set_drvdata(input_dev, onetouch);
+
 	input_dev->open = usb_onetouch_open;
 	input_dev->close = usb_onetouch_close;
 

drivers/usb/storage/unusual_devs.h

@@ -1179,14 +1179,20 @@ UNUSUAL_DEV( 0x0a17, 0x006, 0x0000, 0xffff,
                 US_SC_DEVICE, US_PR_DEVICE, NULL,
                 US_FL_FIX_INQUIRY ),
 
-/* This is a virtual windows driver CD, which the zd1211rw driver automatically
- * converts into a WLAN device. */
+/* These are virtual windows driver CDs, which the zd1211rw driver automatically
+ * converts into a WLAN devices. */
 UNUSUAL_DEV( 0x0ace, 0x2011, 0x0101, 0x0101,
                 "ZyXEL",
                 "G-220F USB-WLAN Install",
                 US_SC_DEVICE, US_PR_DEVICE, NULL,
                 US_FL_IGNORE_DEVICE ),
 
+UNUSUAL_DEV( 0x0ace, 0x20ff, 0x0101, 0x0101,
+		"SiteCom",
+		"WL-117 USB-WLAN Install",
+		US_SC_DEVICE, US_PR_DEVICE, NULL,
+		US_FL_IGNORE_DEVICE ),
+
 #ifdef CONFIG_USB_STORAGE_ISD200
 UNUSUAL_DEV(  0x0bf6, 0xa001, 0x0100, 0x0110,
 		"ATI",