summaryrefslogtreecommitdiffstats
path: root/include/linux/usb.h
diff options
context:
space:
mode:
authorAlan Stern <stern@rowland.harvard.edu>2008-12-05 14:10:34 -0500
committerGreg Kroah-Hartman <gregkh@suse.de>2009-01-07 10:00:08 -0800
commit3b23dd6f8a718e5339de4f7d86ce76a078b5f771 (patch)
tree500a0402d7d8ba9afefc316124c1a6b4b4d575b2 /include/linux/usb.h
parentb9cef6c31913c34fb1065b1d01e04c3b92c59016 (diff)
downloadop-kernel-dev-3b23dd6f8a718e5339de4f7d86ce76a078b5f771.zip
op-kernel-dev-3b23dd6f8a718e5339de4f7d86ce76a078b5f771.tar.gz
USB: utilize the bus notifiers
This patch (as1185) makes usbcore take advantage of the bus notifications sent out by the driver core. Now we can create all our device and interface attribute files before the device or interface uevent is broadcast. A side effect is that we no longer create the endpoint "pseudo" devices at the same time as a device or interface is registered -- it seems like a bad idea to try registering an endpoint before the registration of its parent is complete. So the routines for creating and removing endpoint devices have been split out and renamed, and they are called explicitly when needed. A new bitflag is used for keeping track of whether or not the interface's endpoint devices have been created, since (just as with the interface attributes) they vary with the altsetting and hence can be changed at random times. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Cc: Kay Sievers <kay.sievers@vrfy.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'include/linux/usb.h')
-rw-r--r--include/linux/usb.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/usb.h b/include/linux/usb.h
index 74d0b99..e9d6356 100644
--- a/include/linux/usb.h
+++ b/include/linux/usb.h
@@ -108,6 +108,7 @@ enum usb_interface_condition {
* (in probe()), bound to a driver, or unbinding (in disconnect())
* @is_active: flag set when the interface is bound and not suspended.
* @sysfs_files_created: sysfs attributes exist
+ * @ep_devs_created: endpoint child pseudo-devices exist
* @unregistering: flag set when the interface is being unregistered
* @needs_remote_wakeup: flag set when the driver requires remote-wakeup
* capability during autosuspend.
@@ -169,6 +170,7 @@ struct usb_interface {
enum usb_interface_condition condition; /* state of binding */
unsigned is_active:1; /* the interface is not suspended */
unsigned sysfs_files_created:1; /* the sysfs attributes exist */
+ unsigned ep_devs_created:1; /* endpoint "devices" exist */
unsigned unregistering:1; /* unregistration is in progress */
unsigned needs_remote_wakeup:1; /* driver requires remote wakeup */
unsigned needs_altsetting0:1; /* switch to altsetting 0 is pending */
OpenPOWER on IntegriCloud