On Fri, 11 May 2007, Radha Mohan wrote: > Thanks Alen. I did as you said. I want to know how the power management > for usb comes up. Does the kernel take care of it. Or else do we have to > give any type of interrupt. Suppose I have connected a pendrive to my PC > and I am not using it for say 10min. In this scenario what will happen?
The kernel takes care of it. However only a few USB drivers have automatic power management built in right now. The hub driver does, but usb-storage doesn't. So if you connect a pendrive and don't use it for 10 minutes, nothing will happen -- it will remain powered on. In the future, of course, more and more drivers will support automatic power management. But for now, we're just getting started. Alan Stern ------------------------------------------------------------------------- This SF.net email is sponsored by DB2 Express Download DB2 Express C - the FREE version of DB2 express and take control of your XML. No limits. Just data. Click to get it now. http://sourceforge.net/powerbar/db2/ _______________________________________________ Linux-usb-users@lists.sourceforge.net To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-users
