| commit | 01cd08192040eab30f837f061ca07f43cf15f4a1 | |
| author | Arjan van de Ven <arjan@infradead.org> | |
| Tue, 22 May 2007 19:42:56 +0000 (22 12:42 -0700) | ||
| committer | Greg Kroah-Hartman <gregkh@suse.de> | |
| Thu, 12 Jul 2007 23:29:48 +0000 (12 16:29 -0700) | ||
| tree | 599d6c0cc09ede54e149894fe01c0411309161f6 | treesnapshot (tar.gz zip) |
| parent | fc4cbd755b75c7687b923da5b75ba4a64652582e | commitdiff |
USB: Patch to align the various USB timers to fire at the same time
This patch modifies the USB regular 250ms timer to be "perfectly aligned" to
the second and quarters thereof. This change is there to make sure that if
you have multiple USB ports, the timers for all these ports will fire at the
same time rather than all spread out. All spread out wakes the CPU up from
power saving idle a lot more than needed...
Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch modifies the USB regular 250ms timer to be "perfectly aligned" to
the second and quarters thereof. This change is there to make sure that if
you have multiple USB ports, the timers for all these ports will fire at the
same time rather than all spread out. All spread out wakes the CPU up from
power saving idle a lot more than needed...
Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| drivers/usb/core/hcd.c | diffblobblamehistory |