linux-kernel - ath9k_htc vs. powerpc (was Re: working usb wifi card, that is still possible to buy)

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Message-ID: <20101126083125.GA28982@pma.sysgo.com>
Date:	Fri, 26 Nov 2010 09:31:25 +0100
From:	Pavel Machek <pma@...go.com>
To:	Larry Finger <Larry.Finger@...inger.net>,
	ath9k-devel@...ema.h4ckr.net
Cc:	kernel list <linux-kernel@...r.kernel.org>,
	chunkeey@...glemail.com, linux-wireless@...r.kernel.org,
	rudolf.marek@...go.com, cko@...go.com, mfa@...go.com, anl@...go.com
Subject: ath9k_htc vs. powerpc (was Re: working usb wifi card, that is
 still possible to buy)

Hi!

> > | D-Link DWA-131            | 07d1:3303 | realtek?            |                                          |              
> 
> This one should work with driver r8712u in staging in kernel 2.6.37-rcX. I don't
> have this model for testing, but the DWA-130 is rock solid with that driver.

Thanks... Yes, it works, but staging scares me.

I found card compatible with ath9k_htc driver, that works well on PC,
and is even listed as supported by atheros. Good.

Unfortunately, it does not work that well on powerpc mpc5200b. (I'm
using recent wireless-testing tree).

I can do scan just fine, but can not actually asocciate with the
accesspoint. Nothing too useful in dmesg, only:

Freeing unused kernel memory: 176k init                                         
warning: `named' uses 32-bit capabilities (legacy support in use)               
process `named' is using obsolete setsockopt SO_BSDCOMPAT                       
ieee80211 phy0: device now idle                                                 
ieee80211 phy0: device no longer idle - scanning                                
ieee80211 phy0: device now idle                                                 
ieee80211 phy0: device no longer idle - scanning                                
wlan0: direct probe to 00:23:f8:5d:76:93 (try 1)                                
wlan0: direct probe to 00:23:f8:5d:76:93 (try 2)                                
wlan0: direct probe to 00:23:f8:5d:76:93 (try 3)                                
wlan0: direct probe to 00:23:f8:5d:76:93 timed out                              
ieee80211 phy0: device now idle                                                 
-/bin/sh-3.00# 

Any ideas how to get more verbose debugging?

Diffences to the mpc5200b board are:

a) it is PowerPC, thus big-endian board

b) it only has USB1.1 controller.

								Pavel
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