Re: [linux-usb-devel] [PATCH] Airprime driver improvements to allow full speed EvDO transfers

Andy Gay
2006-07-03T16:19:28Z

On Mon, 2006-07-03 at 08:43 -0700, Ken Brush wrote:
> On 6/29/06, Andy Gay <andy@andynet.net> wrote:
> >
> > Adapted from an earlier patch by Greg KH <gregkh@suse.de>.
> > That patch added multiple read urbs and larger transfer buffers to allow
> > data transfers at full EvDO speed.
> >
> > This version includes additional device IDs and fixes a memory leak in
> > the transfer buffer allocation.
> >
> > Some (maybe all?) of the supported devices present multiple bulk endpoints,
> > the additional EPs can be used for control and status functions.
> > This version allocates 3 EPs by default, that can be changed using
> > the 'endpoints' module parameter.
> >
> > Tested with Sierra Wireless EM5625 and MC5720 embedded modules.
> >
>
> With my aircard 580, I get 6 TTYUSB devices and a Urb too big message.
> You should probably take the 580 out of the driver unless someone
> actually has one and it works for them.
Well, that's the easy way out :)
But I'm willing to try to debug this, if you're game.

I don't know how it could see 6 EPs, unless you specify endpoints=6 when
you load the module. Maybe it sees it as 2 devices somehow?
Can you send me the relevant part of 'cat /proc/bus/usb/devices'?

Also the dmesg where you get the 'urb too big'. You could also try to
load the module with debug enabled.

>
> -Ken
> -
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