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authorAlan Stern <stern@rowland.harvard.edu>2007-12-04 14:35:15 -0500
committerGreg Kroah-Hartman <gregkh@suse.de>2008-02-01 14:34:54 -0800
commit2e2eb83ffd1aeb92bf8793eea892b5bc05a993ea (patch)
tree287cea0e0246d478569e61c74f210c98fd522d96 /drivers
parent241ca64fc55bd2b676890472880e2d2d86cfae82 (diff)
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 <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/usb/core/devio.c15
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/usb/core/devio.c b/drivers/usb/core/devio.c
index 85ec65ada12..32e5591ae7b 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)