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Re: mac80211 driver API

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On Tue, Oct 07, 2008 at 07:01:25PM +0200, Johannes Berg wrote:

> Another thing I noticed when looking at the short slot stuff is that a
> number of drivers do not use the use_short_preamble flag but also do not
> set IEEE80211_HW_2GHZ_SHORT_PREAMBLE_INCAPABLE; this seems like a bug
> affecting at least b43legacy, ath5k, at76_usb, rtl8180, rtl8187.
> 
> You should review the mac80211 driver API for things you aren't using
> but should be using, this affects a number of drivers, for example
> adm8211, p54, stlc45xx, ath5k, ath9k, libertas_tf, rtl8180, rtl8187
> don't use radio_enabled; a number of drivers don't use power_level.
> 
> There are also still drivers (ath5k, adm8211, rtl8180, iwlwifi,
> libertas_tf, zd1211rw, mac80211_hwsim, ...?) not using the
> IEEE80211_TX_CTL_ASSIGN_SEQ flag, I can fix those since I broke them,
> but help from the authors would be appreciated since I don't know the hw
> in all cases, I know that stlc45xx for example can use a corresponding
> firmware flag for it.

Should we recruit janitor's (or gregkh's army) to help with stuff
like the above?

> Do we need a document that indicates which parts of the API must be
> implemented? Or should we mark such things in mac80211.h? Would
> something like this help? I've thrown this together quickly so it
> probably isn't complete yet...

<snip>

Looks like a good start, and I would definitely value such a list.
Please continue to improve it, and we'll figure-out where it needs
to live in the long run.

John
-- 
John W. Linville		Linux should be at the core
linville@xxxxxxxxxxxxx			of your literate lifestyle.
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