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

[Russell King <rmk+lkml@arm.linux.org.uk>]

On Wed, Aug 17, 2005 at 10:21:56PM -0700, Greg KH wrote:
> 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.

The complaint is that serial is registering several different class_devs
for the same class and device.

So that's precisely what is being done by adding the symlink as per this
sub-thread.

-- 
Russell King
 Linux kernel    2.6 ARM Linux   - http://www.arm.linux.org.uk/
 maintainer of:  2.6 Serial core