802.11a/n

[David Goodenough]

On Tuesday 16 Aug 2011, Jouni Malinen wrote:
> On Mon, Aug 15, 2011 at 10:03:00PM -0700, Grant wrote:
> > Thank you.  I get the following, it looks like the 5Ghz channels should
> > work?
> 
> In station mode, but not in AP mode:
> > 			* 5180 MHz [36] (19.0 dBm) (passive scanning, no IBSS)
> > 			* 5200 MHz [40] (19.0 dBm) (passive scanning, no IBSS)
> > 			* 5220 MHz [44] (19.0 dBm) (passive scanning, no IBSS)
> > 			* 5240 MHz [48] (19.0 dBm) (passive scanning, no IBSS)
> 
> Those are fine in modes that passively search an AP and connect to it.
> However, they are not available for starting an AP (or IBSS).
> 
> > 			* 5260 MHz [52] (disabled)
> 
> And those are disabled completely.
As a side question, why would a card not be allowed to be an AP?  I can
understand why it might not be capable of being an AP, but surely if anyone
is allowed to be an AP (and having clients but no AP is no use to anyone)
why are some cards not allowed to be an AP?

David