Re: [RFC v2] cfg80211: VHT regulatory

[Johannes Berg <johannes@sipsolutions.net>]

On Fri, 2012-09-28 at 13:39 +0530, Mahesh Palivela wrote:
> On 09/07/2012 05:40 PM, Johannes Berg wrote:
> >
> > We don't have to do any calculation in kernel though as far as I can
> > tell? Maybe we do need the channel, but I think in terms of
> > *specifying*, in particular in the nl80211 and cfg80211 APIs, we should
> > stick to the standard if we're going to change it now.
> >
> 
> struct ieee80211_channel_config {
>          enum ieee80211_chan_width chan_width;
>          u16 center_freq1;
>          u16 center_freq2;
>          u16 prim_chan_freq;
> };
> 
> If we stick to standard, all u16 become u8, as their values range is 
> from 1-200. But these numbers have to be converted to freqKHz in 
> reg_chan_use_permitted() to find fits in reg rule or not?
> Is that ok?

I prefer MHz for center freqs, but offset for the primary channel, and
this is exactly like table 22-22 in the 802.11ac draft, so only the "u16
primary_channel_freq" becomes "u8 primary_channel_offset", not all of
them change, no?

johannes