Subject: Re: [PATCH] mac80211: move PHY things to debugfs
From: Johannes Berg <johannes@sipsolutions.net>
To: Andy Green <andy@warmcat.com>
Cc: linux-wireless@vger.kernel.org
In-Reply-To: <45E7DF58.6080608@warmcat.com>
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Date: Fri, 02 Mar 2007 11:16:22 +0100
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On Fri, 2007-03-02 at 08:24 +0000, Andy Green wrote:

> I guess I'll stick with sysfs for now since the code is written already:=20
> if I will find add_iface and so on down there then I guess it will all=20
> work out with minor edits.

Just make sure you're running the very latest kernel with
CONFIG_SYSFS_DEPRECATED disabled (I think that's necessary, not entirely
sure). You'll notice when anything but the current CVS version of HAL no
longer displays network devices :/

> Can I ask how stable this byzantine path I am currently following to get=20
> a "Management interface" for tx injection is going to be?  Not even=20
> standard wireless ioctl but Private IOCTL SIOCIWFIRSTPRIV+0 opens out=20
> into a secret garden of "PRISM2" special features... is this already in=20
> a little black refactoring book somewhere?=20

Yup, it is. But there's still debate on whether it should be done
through netlink (nl80211) or some new special injection format for the
monitor interfaces like the management interface currently has.

[you can rip code from wpa_supplicant to inject frames]

Btw, here's another argument against the monitor interfaces: having them
up takes the card out of powersave mode which they should only be while
not associated, even with a userspace MLME.

johannes

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