diff options
| author | Alan Stern <stern@rowland.harvard.edu> | 2010-01-08 20:57:28 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2010-03-03 01:54:12 +0300 |
| commit | 9bbdf1e0afe771ca7650f9f476769310bee9d8f3 (patch) | |
| tree | 22852edde0165523d37f045575512f5759040dba /drivers/usb/core/Kconfig | |
| parent | 0c590e2361511997430130e10e372217c1128da6 (diff) | |
| download | linux-9bbdf1e0afe771ca7650f9f476769310bee9d8f3.tar.xz | |
USB: convert to the runtime PM framework
This patch (as1329) converts the USB stack over to the PM core's
runtime PM framework. This involves numerous changes throughout
usbcore, especially to hub.c and driver.c. Perhaps the most notable
change is that CONFIG_USB_SUSPEND now depends on CONFIG_PM_RUNTIME
instead of CONFIG_PM.
Several fields in the usb_device and usb_interface structures are no
longer needed. Some code which used to depend on CONFIG_USB_PM now
depends on CONFIG_USB_SUSPEND (requiring some rearrangement of header
files).
The only visible change in behavior should be that following a system
sleep (resume from RAM or resume from hibernation), autosuspended USB
devices will be resumed just like everything else. They won't remain
suspended. But if they aren't in use then they will naturally
autosuspend again in a few seconds.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/usb/core/Kconfig')
| -rw-r--r-- | drivers/usb/core/Kconfig | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/usb/core/Kconfig b/drivers/usb/core/Kconfig index ad925946f869..97a819c23ef3 100644 --- a/drivers/usb/core/Kconfig +++ b/drivers/usb/core/Kconfig @@ -91,8 +91,8 @@ config USB_DYNAMIC_MINORS If you are unsure about this, say N here. config USB_SUSPEND - bool "USB selective suspend/resume and wakeup" - depends on USB && PM + bool "USB runtime power management (suspend/resume and wakeup)" + depends on USB && PM_RUNTIME help If you say Y here, you can use driver calls or the sysfs "power/level" file to suspend or resume individual USB |