netdev - Re: BUG: rt2x00usb: Vendor Request 0x07 failed

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Date:	Mon, 22 Aug 2011 11:09:20 +0200
From:	Marc Kleine-Budde <mkl@...gutronix.de>
To:	Stanislaw Gruszka <sgruszka@...hat.com>
CC:	linux-wireless@...r.kernel.org, Netdev@...r.kernel.org
Subject: Re: BUG: rt2x00usb: Vendor Request 0x07 failed

On 08/22/2011 10:25 AM, Stanislaw Gruszka wrote:
> On Sat, Aug 20, 2011 at 10:42:12AM +0200, Marc Kleine-Budde wrote:
>> I'm a running a sheeva plug (ARM/kirkwood) with a rt2800 USB stick in AP mode.
>> Bus 001 Device 002: ID 1737:0071 Linksys WUSB600N v1 Dual-Band Wireless-N Network Adapter [Ralink RT2870]
> 
> First of all, the best way to get rt2x00 support is write to
> (moderated for non-subscribers) list users@...x00.serialmonkey.com 

Okay - will subscribe there.
> 
>> kernel is v3.0.3 +
>> http://www.spinics.net/lists/linux-wireless/msg74377.html
>> (see http://git.pengutronix.de/?p=mkl/linux-2.6.git;a=shortlog;h=refs/heads/wireless/rt2x00/v3.0.3)
> 
> We have now wireless-testing applied version of that fix (3 -patches):
> http://git.kernel.org/?p=linux/kernel/git/linville/wireless-testing.git;a=commit;h=674db1344443204b6ce3293f2df8fd1b7665deea
> http://git.kernel.org/?p=linux/kernel/git/linville/wireless-testing.git;a=commit;h=df71c9cfceea801e7e26e2c74241758ef9c042e5
> http://git.kernel.org/?p=linux/kernel/git/linville/wireless-testing.git;a=commit;h=4b1bfb7d2d125af6653d6c2305356b2677f79dc6
> 
>> With the patch the oops is gone, but after a few hours it fails with:
>>
>> [30971.764840] phy0 -> rt2x00usb_vendor_request: Error - Vendor Request 0x07 failed for offset 0x0438 with error -71.
> 
> Looks there is something wrong at USB bus. Perhaps this could be debugged
> using CONFIG_USB_DEBUG and friends. Eventually look at vendor driver to
> check if it does not do some quirks regarding usb bus could help.

Seems the best is to try to reproduce with a different usb host controller.

thanks,
Marc

-- 
Pengutronix e.K.                  | Marc Kleine-Budde           |
Industrial Linux Solutions        | Phone: +49-231-2826-924     |
Vertretung West/Dortmund          | Fax:   +49-5121-206917-5555 |
Amtsgericht Hildesheim, HRA 2686  | http://www.pengutronix.de   |


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