On Fri, Apr 19, 2002 at 07:21:07AM +0200, Oliver Neukum wrote:
> On Friday 19 April 2002 05:56, Greg KH wrote:
> > Hi all,
> >
> > Here's a patch against 2.5.8 that adds fine grain minor allocation to
> > the usb core code.  Now we can ask for only 1 minor number from the USB
> > core if we want.  I also converted all of the current drivers to work
> > properly.  With this patch, my /proc/usb/drivers looks like the
> > following with a few drivers loaded:
> 
> Are minors becoming short in supply ?

Yes and no.

Yes because we probably could not get a new major/minor range if we ran
out of the existing numbers.

No because we have not used up all of our existing numbers, and we even
got some back by removing the dc2xx driver from the kernel.

But this patch is good, so the drivers that currently were not using all
16 of the minor numbers assigned to them (like rio500, or mdc800, or
dabusb) now only take up what they actually use.

It also offers us more flexability in the future with assigning new
minor numbers if we have to (there's one driver in the pipeline that
does not need 16 minors for example.)

thanks,

greg k-h

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