urtw0: could not allocate USB transfers

[Bernhard Schmidt]

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