diff options
| author |   David Brownell <david-b@pacbell.net> | 2005-09-13 19:56:33 -0700 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@suse.de> | 2005-10-28 16:47:38 -0700 |
| commit | db69087437dd5135a9362da1c37fe072070e8f60 (patch) | |
| tree | 1affacd290eff29b5dc589bbf47369e20d6101db /drivers/usb/core/message.c | |
| parent | [PATCH] USB: move handoff code (diff) | |
| download | linux-dev-db69087437dd5135a9362da1c37fe072070e8f60.tar.xz linux-dev-db69087437dd5135a9362da1c37fe072070e8f60.zip | |
[PATCH] usb_interface power state
This updates the handling of power state for USB interfaces.
- Formalizes an existing invariant: interface "power state" is a boolean:
ON when I/O is allowed, and FREEZE otherwise. It does so by defining
some inlined helpers, then using them.
- Adds a useful invariant: the only interfaces marked active are those
bound to non-suspended drivers. Later patches build on this invariant.
- Simplifies the interface driver API (and removes some error paths) by
removing the requirement that they record power state changes during
suspend and resume callbacks. Now usbcore does that.
A few drivers were simplified to address that last change.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
drivers/usb/core/hub.c | 33 +++++++++------------
drivers/usb/core/message.c | 1
drivers/usb/core/usb.c | 65 +++++++++++++++++++++++++++++++++----------
drivers/usb/core/usb.h | 18 +++++++++++
drivers/usb/input/hid-core.c | 2 -
drivers/usb/misc/usbtest.c | 10 ------
drivers/usb/net/pegasus.c | 2 -
drivers/usb/net/usbnet.c | 2 -
8 files changed, 85 insertions(+), 48 deletions(-)
Diffstat (limited to 'drivers/usb/core/message.c')
| -rw-r--r-- | drivers/usb/core/message.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/usb/core/message.c b/drivers/usb/core/message.c index f9a81e84dbdf..ebf59ea99263 100644 --- a/drivers/usb/core/message.c +++ b/drivers/usb/core/message.c @@ -1393,6 +1393,7 @@ free_interfaces: intf->dev.dma_mask = dev->dev.dma_mask; intf->dev.release = release_interface; device_initialize (&intf->dev); + mark_quiesced(intf); sprintf (&intf->dev.bus_id[0], "%d-%s:%d.%d", dev->bus->busnum, dev->devpath, configuration, |