[U-Boot] [PATCH] usb: Early failure when the first descriptor read fails, one way or another

[Paul Kocialkowski <contact@paulk.fr>]

> > > @@ -990,6 +990,9 @@ int usb_new_device(struct usb_device *dev)
> > >  	case 64:
> > >  		dev->maxpacketsize = PACKET_SIZE_64;
> > >  		break;
> > > +	default:
> > > +		debug("usb_new_device: invalid max packet size\n");
> > 
> > Hi,
> > 
> > since this is an error, this should probably be a printf(). Also,
> > to make the error message useful, it should state the invalid value
> > due to which it failed.
> 
> Well, it is not unexpected behaviour in my use case (but I reckon it may
> be generally speaking). Plugging an USB1 device on a controller that
> doesn't support USB1 should normally fail, this is not some kind of
> run-time error.
> 
> When this happens in Linux, it just fails (silently) and tries ohci
> instead. I'm afraid there is no such mechanism in U-Boot, so the best we
> can do is to treat the device as unsupported.
> 
> If you're not convinced by this, I can still make a v2 with printf, I
> just don't think it's a necessity.

Nervermind this, I have sent out a v2 addressing you concern.

> > Thanks!
> > 
> > > +		return 1;
> > >  	}
> > >  	dev->devnum = addr;

-- 
Paul Kocialkowski, Replicant developer

Replicant is a fully free Android distribution running on several
devices, a free software mobile operating system putting the emphasis on
freedom and privacy/security.

Website: http://www.replicant.us/
Blog: http://blog.replicant.us/
Wiki/tracker/forums: http://redmine.replicant.us/
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