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[PATCH] USB: move usb_device_class class devices to be real devices

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This moves the usb class devices that control the usbfs nodes to show up
in the proper place in the larger device tree.

No userspace changes is needed, this is compatible due to the symlinks
generated by the driver core.

Cc: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Greg Kroah-Hartman 2006-06-19 23:59:31 -07:00
parent 9bde7497e0
commit c182274ffe
2 changed files with 11 additions and 11 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

20
drivers/usb/core/devio.c
View file

@ -515,19 +515,19 @@ static int check_ctrlrecip(struct dev_state *ps, unsigned int requesttype, unsig
static struct usb_device *usbdev_lookup_minor(int minor)
{
struct class_device *class_dev;
struct usb_device *dev = NULL;
struct device *device;
struct usb_device *udev = NULL;
down(&usb_device_class->sem);
list_for_each_entry(class_dev, &usb_device_class->children, node) {
if (class_dev->devt == MKDEV(USB_DEVICE_MAJOR, minor)) {
dev = class_dev->class_data;
list_for_each_entry(device, &usb_device_class->devices, node) {
if (device->devt == MKDEV(USB_DEVICE_MAJOR, minor)) {
udev = device->platform_data;
break;
}
}
up(&usb_device_class->sem);
return dev;
return udev;
};
/*
@ -1580,16 +1580,16 @@ static void usbdev_add(struct usb_device *dev)
{
int minor = ((dev->bus->busnum-1) * 128) + (dev->devnum-1);
dev->class_dev = class_device_create(usb_device_class, NULL,
MKDEV(USB_DEVICE_MAJOR, minor), &dev->dev,
dev->usbfs_dev = device_create(usb_device_class, &dev->dev,
MKDEV(USB_DEVICE_MAJOR, minor),
"usbdev%d.%d", dev->bus->busnum, dev->devnum);
dev->class_dev->class_data = dev;
dev->usbfs_dev->platform_data = dev;
}
static void usbdev_remove(struct usb_device *dev)
{
class_device_unregister(dev->class_dev);
device_unregister(dev->usbfs_dev);
}
static int usbdev_notify(struct notifier_block *self, unsigned long action,

2
include/linux/usb.h
View file

@ -360,7 +360,7 @@ struct usb_device {
char *serial; /* iSerialNumber string, if present */
struct list_head filelist;
struct class_device *class_dev;
struct device *usbfs_dev;
struct dentry *usbfs_dentry; /* usbfs dentry entry for the device */
/*