Re: USB autosuspend and turning of usb pendrive leds
Oliver Neukum <[email protected]>
| Newsgroups | gmane.linux.usb.devel,gmane.linux.kernel |
|---|---|
| Message-ID | <[email protected]> |
Am Montag 24 September 2007 schrieb Hans de Goede: > Oliver Neukum wrote: > > Am Freitag 21 September 2007 schrieb Jiri Kosina: > >> On Fri, 21 Sep 2007, Hans de Goede wrote: > >> > >>> Thats not what I had in mind, autosuspend doesn't work (presumably > >>> because hal keeps polling for media change) maybe I should fix hal to > >>> not keep polling for devices which don't have removable media? > >> Hi Hans, > >> > >> I think the correct solution is that HAL stops polling the device as soon > >> as it sees that it got autosuspended. > > > > And how would we notice a medium change then? If there's an alternative > > way to notice it or we know it cannot happen there's no reason to poll at all. > > > > It looks like hal is currently polling device of which it knows the medium is > not removable, like USB-pens. It doesn't, which is the point. The overwhelming number of USB devices don't bother to correctly declare themselves not removable SCSI devices. The discrimination will have to happen on a product:vendor basis, which means that a large database has to be built and maintained. Regards Oliver ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2005. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ _______________________________________________ [email protected] To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel