Re: patch to autosuspend mice
Pavel Machek <[email protected]>
| Newsgroups | gmane.linux.usb.devel |
|---|---|
| Message-ID | <[email protected]> |
On Wed 2007-01-31 16:54:39, Alan Stern wrote: > On Wed, 31 Jan 2007, Oliver Neukum wrote: > > > > timer whenever there is any activity, and when the timer expires you know > > > the device has been idle long enough that you should suspend it. That's > > > exactly how the autosuspend infrastructure works. > > > > This would call mod_timer() for every completed in-URB. Are you > > sure this is better than an approach maintaining a periodical timer > > and check for IO in the meantime? > > I am not sure it's better. The decision had to be made when I was > designing the autosuspend stuff, and I decided to go this way. Maybe it > was a wrong decision... it's hard to tell. It does have the advantage of > avoiding extra timer events while the device is in use, but as you pointed > out, it has the disadvantage of lots of timer rescheduling. Both solutions are probably okay. mod_timer should be cheap. Pavel -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html ------------------------------------------------------------------------- Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier. Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 _______________________________________________ [email protected] To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel