On Fri, 1 Sep 2006, Greg KH wrote: > On Wed, Aug 30, 2006 at 03:46:35PM -0400, Alan Stern wrote: > > Greg: > > > > It's finally time to submit the USB autosuspend patches. > > > > This cover message is pretty brief, since the major points were described > > in an earlier email: > > > > http://marc.theaimsgroup.com/?l=linux-usb-devel&m=115316128104011&w=2 > > Ok, they're in.
I got about a dozen "This is a note to let you know that I've just added the patch" messages in a row! :-) > Just one question, what about devices that are on the bus, but not > attached to any driver? If that happens, the hub is never suspended, > right? > > If that's true, should we come up with a "generic" driver (for lack of a > better name), that binds to a device if no one else does so that it can > kick the usage count properly? It would be kicked off whenever another > driver wanted the device of course. I thought of that. Take a look at driver.c:suspend_device(). If the device isn't bound to a driver, it gets a standard USB port suspend. There's no corresponding code in resume_device(), so the device will remain suspended until some driver is probed for it. Similarly, as long as an interface isn't bound to a driver, its usage count will remain at 0. Hence it won't interfere with any autosuspend of the device. Alan Stern ------------------------------------------------------------------------- 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 _______________________________________________ linux-usb-devel@lists.sourceforge.net To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel
