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| author | Alan Stern <stern@rowland.harvard.edu> | 2006-08-30 15:47:02 -0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2006-09-27 11:58:57 -0700 |
| commit | 645daaab0b6adc35c1838df2a82f9d729fdb1767 (patch) | |
| tree | 908d58f6c0ad01e9c1622a4c12c9c8080c629baa /net/ipv4/Kconfig | |
| parent | b6956ffa595db97656d5901ca8fec77ef272d41a (diff) | |
| download | linux-645daaab0b6adc35c1838df2a82f9d729fdb1767.tar.bz2 | |
usbcore: add autosuspend/autoresume infrastructure
This patch (as739) adds the basic infrastructure for USB autosuspend
and autoresume. The main features are:
PM usage counters added to struct usb_device and struct
usb_interface, indicating whether it's okay to autosuspend
them or they are currently in use.
Flag added to usb_device indicating whether the current
suspend/resume operation originated from outside or as an
autosuspend/autoresume.
Flag added to usb_driver indicating whether the driver
supports autosuspend. If not, no device bound to the driver
will be autosuspended.
Mutex added to usb_device for protecting PM operations.
Unlike the device semaphore, the locking rule for the pm_mutex
is that you must acquire the locks going _up_ the device tree.
New routines handling autosuspend/autoresume requests for
interfaces and devices.
Suspend and resume requests are propagated up the device tree
(but not outside the USB subsystem).
work_struct added to usb_device, for carrying out delayed
autosuspend requests.
Autoresume added (and autosuspend prevented) during probe and
disconnect.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'net/ipv4/Kconfig')
0 files changed, 0 insertions, 0 deletions