Re: USB driver for Sierra Wireless EM5625/MC5720 1xEVDO modules

[Greg KH <gregkh@suse.de>]

On Wed, Jun 28, 2006 at 07:27:27PM -0400, Andy Gay wrote:
> I have adapted the modified Airprime driver that Greg posted a few weeks
> ago to add support for these 2 modules.
> 
> That driver works for these modules if the USB IDs are added, and fixes
> the throughput problems in the earlier driver. I had to make some
> changes though -
> 
> - there's a memory leak because the transfer buffers are kmalloc'ed
> every time the device is opened, but they're never freed;
> 
> - these modules present 3 bulk EPs, the 2nd & 3rd can be used for
> control & status monitoring while data transfer is in progress on the
> 1st EP. This is useful (and necessary for my application) so we need to
> increase the port count.
> 
> So what should I do next? I see a few possibilities, assuming anyone is
> interested in this:
> 
> - I could post a diff from Greg's driver. But I don't have hardware to
> test whether my changes will break it for the other devices that it
> supports;
> 
> - I could post it as a new driver for just these 2 modules, using some
> other name;
> 
> - I could post it as a replacement for Greg's driver (which isn't yet in
> the official sources, I think), including all the USB IDs, if someone
> can test it for the other devices.

or:
  - send a patch against 2.6.17 that is my changes + your fixes to
    actually make it work.

My patch was just a "throw it out there and see what works or not", as I
don't even have the device to test it with.

thanks,

greg k-h