I'm working on implementing the "dynamic Power Save" (ie. PS enabled after an idle period) feature to mac80211. Here are my current thoughts: First of all, I think we should enable CONF_PS only when associated. So instead of directly calling hw_config() from ieee80211_ioctl_siwpower() we should do that only when associated. Otherwise we change it only after association or disassociation. This means that we have to add a separate bit/variable for storing what user has requested. PS should be disabled while associated and running software scan, and naturally re-enabled after the scan has finished. I assume hardware scanning implementations are clever enough to disable PS when scanning and we don't have to worry about that case. The dynamic PS implementation is still a bit open issue for me. I have been thinking something like that in tx.c frames will be queued if PS is enabled, PS will be disabled in a workqueue by calling ieee80211_hw_config() and only after that the queued frames are transfered. So something similar as sta->ps_tx_buf does in AP mode. No idea if this is feasible or not. Any comments before I'll start writing code? -- 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
