diff options
| author | Alan Stern <[email protected]> | 2013-03-27 16:14:19 -0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <[email protected]> | 2013-03-28 11:06:27 -0700 |
| commit | 0aa2832dd0d9d8609fd8f15139bc7572541a1215 (patch) | |
| tree | 9537cc80217eca1614ca988a87b34170b8dbcc8f /include/linux/timerqueue.h | |
| parent | e9e88fb7bca9f527ccdf4166a240a9023ba6ee73 (diff) | |
USB: use "global suspend" for system sleep on USB-2 buses
This patch (as1674) speeds up system sleep transitions by not
suspending each individual device on a USB-1.1 or USB-2 bus. The
devices will automatically go into suspend when their root hubs are
suspended (i.e., stop sending out Start-Of-Frame packets) -- this is
what the USB spec calls "global suspend".
Since this is what we do already when CONFIG_USB_SUSPEND isn't
enabled, it shouldn't cause any problems.
Signed-off-by: Alan Stern <[email protected]>
CC: Peter Chen <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
Diffstat (limited to 'include/linux/timerqueue.h')
0 files changed, 0 insertions, 0 deletions