Re: USB D3 vs system S3
Alan Stern <[email protected]> Wed, 9 Jan 2008 12:16:13 -0500 (EST)
| Newsgroups | gmane.linux.acpi.devel,gmane.linux.power-management.general,gmane.linux.usb.devel |
|---|---|
| Message-ID | <[email protected]> |
On Wed, 9 Jan 2008, Carlos Corbacho wrote: > On Wednesday 09 January 2008 16:07:04 Alan Stern wrote: > > Currently there's no need to change anything. > > Ok. > > > The USB autosuspend code affects only the controller's USB interface -- > > it doesn't touch the PCI side. An autosuspended controller will remain > > in D0. Until somebody tries writing autosuspend code for PCI > > devices... > > Is this likely to happen? I don't know of anybody working on it. A minimal prerequisite is that PCI runtime wakeup processing needs to work right -- which it doesn't. See http://bugzilla.kernel.org/show_bug.cgi?id=6892 Alan Stern - To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html