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[PATCH] USB Storage: make OneTouch PM-aware

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The OneTouch subdriver submits its own interrupt URB for notifications
about button presses.  Consequently it needs to know about suspend and
resume events, so it can cancel or restart the URB.

This patch (as593) adds a hook to struct us_data, to be used for
notifying subdrivers about Power Management events, and it implements
the hook in the OneTouch driver.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Nick Sillik <n.sillik@temple.edu>
Signed-off-by: Matthew Dharm <mdharm-usb@one-eyed-alien.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Matthew Dharm
2005-12-04 21:56:51 -08:00
committed by Greg Kroah-Hartman
parent b9b0942257
commit 7931e1c6f8
3 changed files with 39 additions and 1 deletions
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4
drivers/usb/storage/usb.c
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@ -188,6 +188,8 @@ static int storage_suspend(struct usb_interface *iface, pm_message_t message)
down(&us->dev_semaphore);
US_DEBUGP("%s\n", __FUNCTION__);
if (us->suspend_resume_hook)
(us->suspend_resume_hook)(us, US_SUSPEND);
iface->dev.power.power_state.event = message.event;
/* When runtime PM is working, we'll set a flag to indicate
@ -204,6 +206,8 @@ static int storage_resume(struct usb_interface *iface)
down(&us->dev_semaphore);
US_DEBUGP("%s\n", __FUNCTION__);
if (us->suspend_resume_hook)
(us->suspend_resume_hook)(us, US_RESUME);
iface->dev.power.power_state.event = PM_EVENT_ON;
up(&us->dev_semaphore);