diff options
| author | Alan Stern <stern@rowland.harvard.edu> | 2006-07-01 22:11:44 -0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2006-09-27 11:58:50 -0700 |
| commit | 4d064c080265a41324d108fccc26b72106d43db3 (patch) | |
| tree | 78418a918af1ca6fa33bca474cc086fc6fa74caf /drivers | |
| parent | a8e7c5653562f88c0f5f53eac0a890c012655789 (diff) | |
usbcore: track whether interfaces are suspended
Currently we rely on intf->dev.power.power_state.event for tracking
whether intf is suspended. This is not a reliable technique because
that value is owned by the PM core, not by usbcore. This patch (as718b)
adds a new flag so that we can accurately tell which interfaces are
suspended and which aren't.
At first one might think these flags aren't needed, since interfaces
will be suspended along with their devices. It turns out there are a
couple of intermediate situations where that's not quite true, such as
while processing a remote-wakeup request.
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/usb.h | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/usb/core/usb.h b/drivers/usb/core/usb.h index cc42972b6bb..74df0db954c 100644 --- a/drivers/usb/core/usb.h +++ b/drivers/usb/core/usb.h @@ -59,17 +59,17 @@ static inline int is_usb_device_driver(struct device_driver *drv) static inline void mark_active(struct usb_interface *f) { - f->dev.power.power_state.event = PM_EVENT_ON; + f->is_active = 1; } static inline void mark_quiesced(struct usb_interface *f) { - f->dev.power.power_state.event = PM_EVENT_FREEZE; + f->is_active = 0; } static inline int is_active(struct usb_interface *f) { - return f->dev.power.power_state.event == PM_EVENT_ON; + return f->is_active; } |