From 2e2eb83ffd1aeb92bf8793eea892b5bc05a993ea Mon Sep 17 00:00:00 2001 From: Alan Stern Date: Tue, 4 Dec 2007 14:35:15 -0500 Subject: 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: Alan Stern Signed-off-by: Greg Kroah-Hartman --- drivers/usb/core/devio.c | 15 +++++++++++++++ 1 file changed, 15 insertions(+) (limited to 'drivers') diff --git a/drivers/usb/core/devio.c b/drivers/usb/core/devio.c index 85ec65ada123..32e5591ae7b1 100644 --- a/drivers/usb/core/devio.c +++ b/drivers/usb/core/devio.c @@ -402,10 +402,25 @@ static void driver_disconnect(struct usb_interface *intf) 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 = { .name = "usbfs", .probe = driver_probe, .disconnect = driver_disconnect, + .suspend = driver_suspend, + .resume = driver_resume, }; static int claimintf(struct dev_state *ps, unsigned int ifnum) -- cgit v1.2.3