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authorLan Tianyu <tianyu.lan@intel.com>2012-05-11 16:08:30 +0800
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2012-05-11 17:08:41 -0700
commitbebc56d58dc780539777d2b1ca80df5566e2ad87 (patch)
treee24d45842809c559c98abb6fb6b2db1445264220 /include/linux/usb.h
parentf397d7c4c5e8a1eb93f2ed15808a509318ccf1dd (diff)
usb: move struct usb_device->children to struct usb_hub_port->child
Move child's pointer to the struct usb_hub_port since the child device is directly associated with the port. Provide usb_get_hub_child_device() to get child's pointer. Signed-off-by: Lan Tianyu <tianyu.lan@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/linux/usb.h')
-rw-r--r--include/linux/usb.h4
1 files changed, 2 insertions, 2 deletions
diff --git a/include/linux/usb.h b/include/linux/usb.h
index 5483cd70390b..69163a0abe91 100644
--- a/include/linux/usb.h
+++ b/include/linux/usb.h
@@ -424,7 +424,6 @@ enum usb_device_removable {
* access from userspace
* @usbfs_dentry: usbfs dentry entry for the device
* @maxchild: number of ports if hub
- * @children: child devices - USB devices that are attached to this hub
* @quirks: quirks of the whole device
* @urbnum: number of URBs submitted for the whole device
* @active_duration: total time device is not suspended
@@ -491,7 +490,6 @@ struct usb_device {
struct list_head filelist;
int maxchild;
- struct usb_device **children;
u32 quirks;
atomic_t urbnum;
@@ -517,6 +515,8 @@ static inline struct usb_device *interface_to_usbdev(struct usb_interface *intf)
extern struct usb_device *usb_get_dev(struct usb_device *dev);
extern void usb_put_dev(struct usb_device *dev);
+extern struct usb_device *usb_get_hub_child_device(struct usb_device *hdev,
+ int port1);
/* USB device locking */
#define usb_lock_device(udev) device_lock(&(udev)->dev)