On Sat, Dec 11, 2010 at 01:04:00PM +0800, Wu, Hao wrote: > >> diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c > >> index 27115b4..46abdb8 100644 > >> --- a/drivers/usb/core/hub.c > >> +++ b/drivers/usb/core/hub.c > >> @@ -21,6 +21,7 @@ > >> #include <linux/usbdevice_fs.h> > >> #include <linux/usb/hcd.h> > >> #include <linux/usb/quirks.h> > >> +#include <linux/usb/otg.h> > >> #include <linux/kthread.h> > >> #include <linux/mutex.h> > >> #include <linux/freezer.h> > >> @@ -1607,6 +1608,11 @@ void usb_disconnect(struct usb_device **pdev) > >> */ > >> device_del(&udev->dev); > >> > >> + /* Notify OTG disconnect event, only for USB device which is > >> + * directly connected to root hub */ > >> + if (udev->parent && udev->parent->parent == NULL) > >> + otg_notify_event(USB_OTG_DISCON); > > > >I thought we went through this already, why not just use the _existing_ > >notification process? No need to create your own here. > > > > Hi Greg, > > Thanks for your help on code review. > > Could you help to tell me which existing notification process is > recommended for this purpose? What's wrong with the existing driver core bus notifiers? -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html