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:

quoted

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-poMEt7QlJxcwIE2E9O76wjtx2kNaKg5H@public.gmane.org 

Okay - will subscribe there.

quoted

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

quoted

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

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