urtw0: could not allocate USB transfers

[Etienne Robillard]

On 25/02/11 07:31 AM, Bernhard Schmidt wrote:
> On Friday, February 25, 2011 12:47:12 Etienne Robillard wrote:
>   
>> On 25/02/11 06:18 AM, Bernhard Schmidt wrote:
>>     
>>> On Friday, February 25, 2011 11:03:04 Etienne Robillard wrote:
>>>   
>>>       
>>>> On 25/02/11 04:11 AM, Bernhard Schmidt wrote:
>>>>     
>>>>         
>>>>> On Thursday, February 24, 2011 21:51:23 joseph wrote:
>>>>>   
>>>>>       
>>>>>           
>>>>>> Hello,
>>>>>>
>>>>>> i decided to get my laptop wlan via usb because my internal device isn't 
>>>>>> supported yet.
>>>>>> The usb device is a logilink WL0006 unit its vendorid is 0x0bda and the 
>>>>>> productid says 0x8187.
>>>>>> My search results say that this device depends on a RTL8187 chipset.
>>>>>> I tried both, load the kernel module at boot time and compile kernel 
>>>>>> withe urtw, but i get the same output at dmesg
>>>>>>
>>>>>> device_attach: urtw0 attach returned 6
>>>>>> urtw0: <vendor 0x0bda product 0x8187, class 0/0, rev 2.00/2.00, addr 2> 
>>>>>> on usbus3
>>>>>> urtw0: could not allocate USB transfers, err=USB_ERR_NO_PIPE
>>>>>> device_attach: urtw0 attach returned 6
>>>>>>
>>>>>> im running FreeBSD 8.1-RELEASE-p2 amd64.
>>>>>>
>>>>>> What might be the reason for this error?
>>>>>> Thanks for all hints.
>>>>>>     
>>>>>>         
>>>>>>             
>>>>> Well, I have no clue about USB.. but this smells like one of the
>>>>> endpoints is 'not there'. At least I can't find any reference to
>>>>> it in the Linux driver. Wanna give attached patch a shot?
>>>>>   
>>>>>       
>>>>>           
>>>> Hi Bernard,
>>>>
>>>> For rt287x based cards, you can try using rt28700 chipset instead of
>>>> urtw0 on
>>>> FreeBSD 8.
>>>>
>>>> The former is not in the stable src tree, but could be retrieved from here:
>>>>
>>>> https://gthc.org/distfiles/freebsd/rt2870_fbsd8.tar.gz
>>>>
>>>> Any takers to make module rt28700 (if_rt2870) officially part of the
>>>> FreeBSD src tree?
>>>>     
>>>>         
>>> I'm a bit confused now, shouldn't the rt2870 be supported by run(4)? On
>>> a site-note, this is Ralink chipset not a Realtek one.
>>>
>>>   
>>>       
>> I believe this is a different implementation for RT8187 usb network
>> adapters than
>> run(4). However in my view I found urtw0 buggy, but would certainly take
>> a look at run(4) to
>> compare the results with wireless networking agaisnt the other driver
>> (rt28700).
>>     
> Yeah, urtw(4) has a few flaws..
>
> - urtw(4): Realtek RTL8187B/RTL8187L
> - rum(4): Ralink RT2501/RT2601
> - run(4): Ralink RT2700/RT2800/RT3000
>
> So it seems the driver you've posted conflicts with run(4). From a
> quick glance at it, it seems to support 11n? If so, can I talk you
> into working on getting those bits merged?
> Thanks!
>
> --
> Bernhard
> _______________________________________________
>   
Thanks but I'm not sure I'd be helpful there as I have very moderate
knowledge
in USB and Wifi programming... Also why is "l1n" a important feature
missing from the rt2870 driver ? I achieved very good rates with this card
without it :)

Etienne

-- 
Etienne Robillard

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