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: (142 commits)
  USB: fix race in autosuspend reschedule
  atmel_usba_udc: Keep track of the device status
  USB: Nikon D40X unusual_devs entry
  USB: serial core should respect driver requirements
  USB: documentation for USB power management
  USB: skip autosuspended devices during system resume
  USB: mutual exclusion for EHCI init and port resets
  USB: allow usbstorage to have LUNS greater than 2Tb
  USB: Adding support for SHARP WS011SH to ipaq.c
  USB: add atmel_usba_udc driver
  USB: ohci SSB bus glue
  USB: ehci build fixes on au1xxx, ppc-soc
  USB: add runtime frame_no quirk for big-endian OHCI
  USB: funsoft: Fix termios
  USB: visor: termios bits
  USB: unusual_devs entry for Nikon DSC D2Xs
  USB: re-remove <linux/usb_sl811.h>
  USB: move <linux/usb_gadget.h> to <linux/usb/gadget.h>
  USB: Export URB statistics for powertop
  USB: serial gadget: Disable endpoints on unload
  ...

1 files changed, 50 insertions, 0 deletions

diff --git a/drivers/usb/core/sysfs.c b/drivers/usb/core/sysfs.c
index 2ab222be8fd..b04afd06e50 100644
--- a/drivers/usb/core/sysfs.c
+++ b/drivers/usb/core/sysfs.c
@@ -169,6 +169,16 @@ show_quirks(struct device *dev, struct device_attribute *attr, char *buf)
 }
 static DEVICE_ATTR(quirks, S_IRUGO, show_quirks, NULL);
 
+static ssize_t
+show_urbnum(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct usb_device *udev;
+
+	udev = to_usb_device(dev);
+	return sprintf(buf, "%d\n", atomic_read(&udev->urbnum));
+}
+static DEVICE_ATTR(urbnum, S_IRUGO, show_urbnum, NULL);
+
 
 #if defined(CONFIG_USB_PERSIST) || defined(CONFIG_USB_SUSPEND)
 static const char power_group[] = "power";
@@ -413,6 +423,44 @@ usb_descriptor_attr(bDeviceProtocol, "%02x\n")
 usb_descriptor_attr(bNumConfigurations, "%d\n")
 usb_descriptor_attr(bMaxPacketSize0, "%d\n")
 
+
+
+/* show if the device is authorized (1) or not (0) */
+static ssize_t usb_dev_authorized_show(struct device *dev,
+				       struct device_attribute *attr,
+				       char *buf)
+{
+	struct usb_device *usb_dev = to_usb_device(dev);
+	return snprintf(buf, PAGE_SIZE, "%u\n", usb_dev->authorized);
+}
+
+
+/*
+ * Authorize a device to be used in the system
+ *
+ * Writing a 0 deauthorizes the device, writing a 1 authorizes it.
+ */
+static ssize_t usb_dev_authorized_store(struct device *dev,
+					struct device_attribute *attr,
+					const char *buf, size_t size)
+{
+	ssize_t result;
+	struct usb_device *usb_dev = to_usb_device(dev);
+	unsigned val;
+	result = sscanf(buf, "%u\n", &val);
+	if (result != 1)
+		result = -EINVAL;
+	else if (val == 0)
+		result = usb_deauthorize_device(usb_dev);
+	else
+		result = usb_authorize_device(usb_dev);
+	return result < 0? result : size;
+}
+
+static DEVICE_ATTR(authorized, 0644,
+	    usb_dev_authorized_show, usb_dev_authorized_store);
+
+
 static struct attribute *dev_attrs[] = {
 	/* current configuration's attributes */
 	&dev_attr_configuration.attr,
@@ -420,6 +468,7 @@ static struct attribute *dev_attrs[] = {
 	&dev_attr_bConfigurationValue.attr,
 	&dev_attr_bmAttributes.attr,
 	&dev_attr_bMaxPower.attr,
+	&dev_attr_urbnum.attr,
 	/* device attributes */
 	&dev_attr_idVendor.attr,
 	&dev_attr_idProduct.attr,
@@ -435,6 +484,7 @@ static struct attribute *dev_attrs[] = {
 	&dev_attr_version.attr,
 	&dev_attr_maxchild.attr,
 	&dev_attr_quirks.attr,
+	&dev_attr_authorized.attr,
 	NULL,
 };
 static struct attribute_group dev_attr_grp = {