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USB: Add wakeup info to debugging messages

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This patch (as1487) improves the usbcore debugging output for port
suspend and bus suspend, by stating whether or not remote wakeup is
enabled.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
This commit is contained in:
Alan Stern 2011-09-27 21:54:22 +02:00 committed by Rafael J. Wysocki
parent 2e6ba515f5
commit 30b1a7a32c
2 changed files with 8 additions and 8 deletions
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9
drivers/usb/core/hcd.c
View File

@ -1959,8 +1959,9 @@ int hcd_bus_suspend(struct usb_device *rhdev, pm_message_t msg)
int status;
int old_state = hcd->state;
dev_dbg(&rhdev->dev, "bus %s%s\n",
(PMSG_IS_AUTO(msg) ? "auto-" : ""), "suspend");
dev_dbg(&rhdev->dev, "bus %ssuspend, wakeup %d\n",
(PMSG_IS_AUTO(msg) ? "auto-" : ""),
rhdev->do_remote_wakeup);
if (HCD_DEAD(hcd)) {
dev_dbg(&rhdev->dev, "skipped %s of dead bus\n", "suspend");
return 0;
@ -1995,8 +1996,8 @@ int hcd_bus_resume(struct usb_device *rhdev, pm_message_t msg)
int status;
int old_state = hcd->state;
dev_dbg(&rhdev->dev, "usb %s%s\n",
(PMSG_IS_AUTO(msg) ? "auto-" : ""), "resume");
dev_dbg(&rhdev->dev, "usb %sresume\n",
(PMSG_IS_AUTO(msg) ? "auto-" : ""));
if (HCD_DEAD(hcd)) {
dev_dbg(&rhdev->dev, "skipped %s of dead bus\n", "resume");
return 0;

7
drivers/usb/core/hub.c
View File

@ -2324,8 +2324,6 @@ int usb_port_suspend(struct usb_device *udev, pm_message_t msg)
int port1 = udev->portnum;
int status;
// dev_dbg(hub->intfdev, "suspend port %d\n", port1);
/* enable remote wakeup when appropriate; this lets the device
* wake up the upstream hub (including maybe the root hub).
*
@ -2371,8 +2369,9 @@ int usb_port_suspend(struct usb_device *udev, pm_message_t msg)
status = 0;
} else {
/* device has up to 10 msec to fully suspend */
dev_dbg(&udev->dev, "usb %ssuspend\n",
(PMSG_IS_AUTO(msg) ? "auto-" : ""));
dev_dbg(&udev->dev, "usb %ssuspend, wakeup %d\n",
(PMSG_IS_AUTO(msg) ? "auto-" : ""),
udev->do_remote_wakeup);
usb_set_device_state(udev, USB_STATE_SUSPENDED);
msleep(10);
}