module loading order

[Greg KH]

On Wed, May 11, 2011 at 10:24:28PM +0100, Simon Leung wrote:
> 
> > Yes, and so is the option module.  But you are looking at a wierd device
> > that somehow thinks it is both an option device, and a pl2303 device,
> > which are totally different chipsets.
> 
> If I understand modules.dep correctly, it says that both pl2303 depend 
> on usbserial.

You mean "both pl2303 and option", then yes.

> So when either is loaded, usbserial will be loaded.

Yes.

> But the problem here is that pl2303 should not be loaded at all as
> it's for USB-serial adapter, not 3G modem. I'm not sure what controls
> that.

The descriptors of the device itself.

What does 'lsusb' show with this device plugged in?

And what kernel version are you using here?

thanks,

greg k-h