Re: [PATCH] add transport class symlink to device object

[Greg KH <greg@kroah.com>]

On Mon, Aug 15, 2005 at 09:32:44AM +0100, Russell King wrote:
> On Mon, Aug 15, 2005 at 01:43:03AM +0100, Matthew Wilcox wrote:
> > On Sun, Aug 14, 2005 at 11:25:25PM +0100, Russell King wrote:
> > > Eww.  Do you really want one struct device per tty with all the
> > > memory each one eats?
> > > 
> > > If that's really what you want you need to talk to Alan and not me.
> > > Alan looks after tty level stuff, I look after serial level stuff.
> > > The above is a tty level issue not a serial level issue.
> > 
> > mmm.  I don't know whether it's really a tty level issue or a serial
> > issue.  The only tty classes with corresponding devices are the serial
> > ones, at least on my system.  If this is the case, then the right fix
> > would seem to be something like creating a new struct device for each
> > serial port, then making that the uart_port->dev instead of the pci_dev
> > or whatever.
> 
> What's the reason for enforcing one struct device per struct class_dev ?
> I thought one of the points of class_dev was that you could have multiple
> of them per struct device.

No such enforcement is needed at all, and not encouraged.

thanks,

greg k-h