Re: rt2x00/rt2500 support

[Eion Robb <emr33 student canterbury ac nz>]

I created a testing function to fill in the wireless stats with 0 values,  
and great news, the rt2x00 chipset is detected as a wireless card.  It  
does everything except WPA, so not much better than the legacy  
rt2400/rt2500 at the moment.
I seem to be getting a lot of "Device or resource busy" warnings from  
NetworkManager like

NetworkManager: <WARNING>        nm_device_802_11_wireless_set_mode ():  
error setting card wlan0 to Infrastructure mode: Device or resource busy
NetworkManager: <WARNING>        nm_device_802_11_wireless_scan (): could  
not trigger wireless scan on device wlan0: Device or resource busy
(even though it did actually scan here... I'm a bit confused)

The only other warning I can see that might have something to do with WPA  
not working is
** (nm-applet:3052): WARNING **: <WARNING>       wsm_set_capabilities ():  
capabilities='3000' and did not match any protocals, not even none!

But that's probably because all the values of wlan0 in /proc/net/wireless  
are 0, except for status, which is 1, maybe?

--Eion

On Fri, 14 Jul 2006 08:36:29 +1200, Dan Williams <dcbw redhat com> wrote:

> On Fri, 2006-07-14 at 07:12 +1200, Eion Robb wrote:
> > I've attached both the output of /proc/net/wireless (pretty much blank)
>
> Ok; this is because d80211 (at least as included in rt2x00 driver) isn't
> setting the wireless stats handler, which I believe makes the device
> show up in /proc/net/wireless.
>
> See airo, for example:
>
> static const struct iw_handler_def	airo_handler_def =
> {
> 	.num_standard	= sizeof(airo_handler)/sizeof(iw_handler),
> 	.num_private	= sizeof(airo_private_handler)/sizeof(iw_handler),
> 	.num_private_args = sizeof(airo_private_args)/sizeof(struct  
> iw_priv_args),
> 	.standard	= airo_handler,
> 	.private	= airo_private_handler,
> 	.private_args	= airo_private_args,
> 	.get_wireless_stats = airo_get_wireless_stats,
> };
>
> The ieee80211/ieee80211_ioctl.c file in the rt2x00 driver doesn't set
> the ".get_wireless_stats" handler:
>
> const struct iw_handler_def ieee80211_iw_handler_def =
> {
> 	.num_standard	= sizeof(ieee80211_handler) / sizeof(iw_handler),
> 	.num_private	= sizeof(ieee80211_private_handler) /
> 			  sizeof(iw_handler),
> 	.num_private_args = sizeof(ieee80211_ioctl_priv) /
> 			    sizeof(struct iw_priv_args),
> 	.standard	= (iw_handler *) ieee80211_handler,
> 	.private	= (iw_handler *) ieee80211_private_handler,
> 	.private_args	= (struct iw_priv_args *) ieee80211_ioctl_priv,
> };
>
> Jiri, what's involved here?  The actual handler for get_wireless_stats
> is quite simple; see below.  It returns a 'struct iw_statistics' for
> which it looks like all the information is available in d80211
> elsewhere.
>
> static struct iw_statistics *airo_get_wireless_stats(struct net_device  
> *dev)
> {
> 	struct airo_info *local =  dev->priv;
>
> 	...
> 	airo_read_wireless_stats(local);
> 	...
>
> 	return &local->wstats;
> }
>
> Dan
>
> > and another attempt at  the "tree /sys" output.
> >
> > --Eion
> >
> > >
> > > AFAIK, HAL looks at /proc/net/wireless, parses the interface names,  
> > and
> > > uses that to determine whether or not the device is a wireless device.
> > > Since it appears that /proc/net/wireless is eventually going away, HAL
> > > may need to get changed to recognize the /sys/class/ieee80211  
> > directory
> > > that dscape presents, or something like that.
> > >
> > > What does your /proc/net/wireless say when the card is plugged in and
> > > the driver is loaded?
> > >
> > > Dan