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Commit 2e2eb83f authored by Alan Stern's avatar Alan Stern Committed by Greg Kroah-Hartman
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USB: add usbfs stubs for suspend and resume 



This patch (as1022b) adds stub methods for suspend and resume to the
usbfs driver.  There isn't much they can do since there's no way to
inform a user task about the events.  But it's important to have the
stubs, because an upcoming change to usbcore will automatically unbind
drivers that don't have those methods when a suspend occurs.

Signed-off-by: default avatarAlan Stern <stern@rowland.harvard.edu>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
parent 241ca64f

drivers/usb/core/devio.c

+15 −0
Original line number Original line Diff line number Diff line
@@ -402,10 +402,25 @@ static void driver_disconnect(struct usb_interface *intf) 
	destroy_async_on_interface(ps, ifnum);

	destroy_async_on_interface(ps, ifnum);

}

}





/* The following routines are merely placeholders.  There is no way

 * to inform a user task about suspend or resumes.

 */

static int driver_suspend(struct usb_interface *intf, pm_message_t msg)

{

	return 0;

}



static int driver_resume(struct usb_interface *intf)

{

	return 0;

}



struct usb_driver usbfs_driver = {

struct usb_driver usbfs_driver = {

	.name =		"usbfs",

	.name =		"usbfs",

	.probe =	driver_probe,

	.probe =	driver_probe,

	.disconnect =	driver_disconnect,

	.disconnect =	driver_disconnect,

	.suspend =	driver_suspend,

	.resume =	driver_resume,

};

};





static int claimintf(struct dev_state *ps, unsigned int ifnum)

static int claimintf(struct dev_state *ps, unsigned int ifnum)