On Wed 2009-07-15 11:00:07, Luis R. Rodriguez wrote: > On Wed, Jul 15, 2009 at 8:51 AM, Luis R. Rodriguez<mcgrof@xxxxxxxxx> wrote: > > On Tue, Jul 14, 2009 at 4:53 PM, Pavel Machek<pavel@xxxxxx> wrote: > >> On Tue 2009-07-14 15:11:45, Luis R. Rodriguez wrote: > >>> I'm working on Wake-on-Wireless support for wireless right now [1]. > >>> Upon wake up I wanted to inform the kernel of the event which caused > >>> the wake up but am not clear if there is a generic API for this. Mind > >>> you, for WoW we'll need at least some AC power to the card so we'll > >>> need to at least be in S3-Hot so we'll only need events for that for > >>> now. > >>> > >>> Do we have some generic infrastructure to gather reasons for wake up > >>> from S1-S4 and pass this to userspace yet? > >> > >> I do not think generic api exists... > > Going back to this topic -- any suggestions? Will a generic netlink > family be OK? Or perhaps easier a udev event for some suitable > existing parent ? Is "who woke me" information even relevant? Yes, it may be interesting enough for printk, but... What will userspace do with that information? Imagine WoW packet comes, 5msec later WoL packet comes, 5msec later user opens the lid. You report WoW as wakeup reason, but it is inherently "racy". What about simply reporting "wake event happened on this device" and doing that for all the devices? Pavel -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
