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author | Alan Stern <stern@rowland.harvard.edu> | 2006-07-01 22:11:02 -0400 |
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committer | Greg Kroah-Hartman <gregkh@suse.de> | 2006-09-27 14:58:50 -0400 |
commit | a8e7c5653562f88c0f5f53eac0a890c012655789 (patch) | |
tree | ba227138d408fdc73ccfc62ad8f75d912ece4baf /include/linux/usb.h | |
parent | 1cc8a25d5b680ff656927ffa9b66fae6b415b1d3 (diff) |
usbcore: resume device resume recursion
This patch (as717b) removes the existing recursion in hub resume code:
Resuming a hub will no longer automatically resume the devices attached
to the hub.
At the same time, it adds one level of recursion: Suspending a USB
device will automatically suspend all the device's interfaces. Failure
at an intermediate stage will cause all the already-suspended interfaces
to be resumed. Attempts to suspend or resume an interface by itself will
do nothing, although they won't return an error. Thus the regular
system-suspend and system-resume procedures should continue to work as
before; only runtime PM will be affected.
The patch also removes the code that tests state of the interfaces
before suspending a device. It's no longer needed, since everything
gets suspended together.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'include/linux/usb.h')
0 files changed, 0 insertions, 0 deletions