On Thu, May 04, 2006 at 02:26:53PM +0200, Johannes Berg wrote: > On Wed, 2006-05-03 at 09:44 -0700, Jouni Malinen wrote: > > But there is.. I committed changes to the wpa_supplicant devel branch > > for this yesterday. It seems to work fine with net/d80211 and bcm43xx > > with this small patch to d80211 to allow the functionality to be moved > > into user space. > > Cool, do you have a list of things that we need to support for it to > work on a 'softmac' based driver (iow removing softmac in favour of > this)?
This is still somewhat open, but at minimum, there needs to be a mechanism for receiving and sending management frames from user space. d80211 uses a "management netdev" for this currently (the same one that was used before with hostapd for AP mode). In addition to that, wpa_supplicant expect to be able to read list of support channels and TX rates (get_hw_feature_data handler in driver wrapper) and to be able to add and remove STA entries (e.g., for TX rate control and association status validation in kernel code). Currently, scanning is done simply by setting the channel with SIOCSIWFREQ and listening for management frames. However, the goal is to provide simple atomic operations that user space programs can request the kernel code to do. This would cover not only scanning, but also some other needs like IEEE 802.11k radio measurements. These operations could be something like "stop transmit, move to channel 5, report received management frames, record noise level, do this for 5 ms, return to operational channel, enable transmit". -- Jouni Malinen PGP id EFC895FA - To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
