Hey Johannes,

On Wed, Nov 30, 2011 at 01:16:46PM +0100, Johannes Berg wrote:

On Mon, 2011-11-28 at 18:55 +0100, Simon Wunderlich wrote:

quoted

Prepare cfg80211 for IBSS HT:
 * extend cfg80211 ibss struct with channel_type
 * Check if extension channel can be used
 * Export can_beacon_sec_chan for use in mac80211 (will be called
   from ibss.c later).

I'm thinking there should be a "driver supports HT IBSS" flag, and we
reject the config otherwise?

There is already an implicit check for this - rdev_freq_to_chan() checks
if the channel_type is supported, and -EINVAL otherwise. So if I call 
ibss_join with HT20 or HT40 on ath5k, it gets rejected already.

If this is not enough and we need a further flag, could you please give
me a hint how/where to implement it?

regards,
	Simon