[ath9k-devel] Newbie: Where/How does ath9k registers cfg80211_ops callbacks?

[Luis R. Rodriguez <lrodriguez@atheros.com>]

On Thu, Jul 16, 2009 at 01:56:31PM -0700, Rakesh Kumar wrote:
> Hello,
> 
> I was browsing through the ath9k code and was wondering where does it register the callback functions which are given in cfg80211.h, where it says:
> 
>  * struct cfg80211_ops - backend description for wireless configuration
>  *
>  * This struct is registered by fullmac card drivers and/or wireless stacks
>  * in order to handle configuration requests on their interfaces.
> 
> I see that ath9k has a function named ath_set_channel which performs the operations that the set_channel callback function should do for ath9k but don't see where the mapping is being established.
> 
> What further confuses me is the reference given in the presentation uploaded at: http://linuxwireless.org/en/developers/Documentation?action=AttachFile&do=get&target=overview.pdf  by Johannes where in the slide about Main Flows - configuration he writes "some operation passed through to driver more or less  directly (e.g. channel setting)"
> 
> I am not sure how this is being done in ath9k, any references/code snippet will be high appreciated.

ath9k is a mac80211 driver. mac80211 implements all cfg80211 callbacks for us. Therefore
we just need to implement the mac80211 callbacks and the bus specific stuff.

  Luis