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| author | David Brownell <david-b@pacbell.net> | 2005-09-12 19:39:39 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2005-10-28 09:52:50 -0700 |
| commit | b94dc6b58667a73eeaf5cfd9c9e90dcd98743c5b (patch) | |
| tree | 738e4214f3168544bfcde2c46e369b3da5845dfe /drivers/usb/core/hub.c | |
| parent | 0ac85241ebc7bf6b86ab498960cc121d53ef69ae (diff) | |
| download | kernel_samsung_espresso10-b94dc6b58667a73eeaf5cfd9c9e90dcd98743c5b.zip kernel_samsung_espresso10-b94dc6b58667a73eeaf5cfd9c9e90dcd98743c5b.tar.gz kernel_samsung_espresso10-b94dc6b58667a73eeaf5cfd9c9e90dcd98743c5b.tar.bz2 | |
[PATCH] usb device wakeup flags
This patch teaches "usb_device" about the new driver model wakeup support:
- It updates device wakeup capabilities when entering a configuration
with the WAKEUP attribute;
- During suspend processing it consults the policy bit to see
whether it should enable wakeup for that device. (This resolves
a FIXME to not assume the answer is always "yes"; some devices
lie about supporting remote wakeup.)
Support for root hubs and the HCDs is separate (and more complex).
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/usb/core/hub.c')
| -rw-r--r-- | drivers/usb/core/hub.c | 16 |
1 files changed, 9 insertions, 7 deletions
diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c index a12cab5..c3e2024 100644 --- a/drivers/usb/core/hub.c +++ b/drivers/usb/core/hub.c @@ -1020,9 +1020,15 @@ void usb_set_device_state(struct usb_device *udev, spin_lock_irqsave(&device_state_lock, flags); if (udev->state == USB_STATE_NOTATTACHED) ; /* do nothing */ - else if (new_state != USB_STATE_NOTATTACHED) + else if (new_state != USB_STATE_NOTATTACHED) { udev->state = new_state; - else + if (new_state == USB_STATE_CONFIGURED) + device_init_wakeup(&udev->dev, + (udev->actconfig->desc.bmAttributes + & USB_CONFIG_ATT_WAKEUP)); + else if (new_state != USB_STATE_SUSPENDED) + device_init_wakeup(&udev->dev, 0); + } else recursively_mark_NOTATTACHED(udev); spin_unlock_irqrestore(&device_state_lock, flags); } @@ -1546,11 +1552,7 @@ static int hub_port_suspend(struct usb_hub *hub, int port1, * NOTE: OTG devices may issue remote wakeup (or SRP) even when * we don't explicitly enable it here. */ - if (udev->actconfig - // && FIXME (remote wakeup enabled on this bus) - // ... currently assuming it's always appropriate - && (udev->actconfig->desc.bmAttributes - & USB_CONFIG_ATT_WAKEUP) != 0) { + if (device_may_wakeup(&udev->dev)) { status = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), USB_REQ_SET_FEATURE, USB_RECIP_DEVICE, USB_DEVICE_REMOTE_WAKEUP, 0, |