From 65bfd2967c906ca322a4bb69a285fe0de8916ac6 Mon Sep 17 00:00:00 2001 From: Alan Stern Date: Tue, 25 Nov 2008 16:39:18 -0500 Subject: USB: Enhance usage of pm_message_t This patch (as1177) modifies the USB core suspend and resume routines. The resume functions now will take a pm_message_t argument, so they will know what sort of resume is occurring. The new argument is also passed to the port suspend/resume and bus suspend/resume routines (although they don't use it for anything but debugging). In addition, special pm_message_t values are used for user-initiated, device-initiated (i.e., remote wakeup), and automatic suspend/resume. By testing these values, drivers can tell whether or not a particular suspend was an autosuspend. Unfortunately, they can't do the same for resumes -- not until the pm_message_t argument is also passed to the drivers' resume methods. That will require a bigger change. IMO, the whole Power Management framework should have been set up this way in the first place. Signed-off-by: Alan Stern Signed-off-by: Greg Kroah-Hartman --- drivers/usb/core/hcd.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers/usb/core/hcd.h') diff --git a/drivers/usb/core/hcd.h b/drivers/usb/core/hcd.h index 0aaa9cea6b38..aa5da82d9071 100644 --- a/drivers/usb/core/hcd.h +++ b/drivers/usb/core/hcd.h @@ -388,8 +388,8 @@ extern int usb_find_interface_driver(struct usb_device *dev, #ifdef CONFIG_PM extern void usb_hcd_resume_root_hub(struct usb_hcd *hcd); extern void usb_root_hub_lost_power(struct usb_device *rhdev); -extern int hcd_bus_suspend(struct usb_device *rhdev); -extern int hcd_bus_resume(struct usb_device *rhdev); +extern int hcd_bus_suspend(struct usb_device *rhdev, pm_message_t msg); +extern int hcd_bus_resume(struct usb_device *rhdev, pm_message_t msg); #else static inline void usb_hcd_resume_root_hub(struct usb_hcd *hcd) { -- cgit v1.2.3