Johannes Berg <johannes@xxxxxxxxxxxxxxxx> writes: > Hi! Hello, > Just had this idea -- when our networking interfaces are UP, but not > actually doing anything, the RF chains consume power. Yes, and also firmware consumes power. For example stlc4550 has a hibernate feature to put the firmware sleep and wake it up quickly. > This is, often, the default state, since you'll have your wifi on due > to NM wanting to find APs, but not associated, for example when on the > road. Sure, you can manually turn it off, but... That's what we do in Nokia Internet tablets. wlancond it putting interface up and down all the time and it's a hack. > However, it doesn't seem necessary. When we are not associated to an AP, > and there are no extra interfaces in mac80211 active like monitor > interfaces, it seems that we could very well turn off the radio while > not scanning. It would be entirely trivial for mac80211 to do this, > probably a 20 line patch or so (need some bookkeeping about why radio is > disabled so it's not just four lines). > > Thoughts? I think it's a good idea. Sometimes I have thought myself that we would need something like this. -- Kalle Valo -- 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
