Re: lanana: Add major/minor entries for PPC QE UART devices

Dan Malek
2007-02-28T17:33:49Z

On Feb 28, 2007, at 12:04 PM, Timur Tabi wrote:

> ... However, ttyCPM0 is currently assigned to 46, and device 50 is
> an Altix serial card. The only way to give the CPM 6 or 8 slots
> without moving it is to overlap the Altix card.

Then, this is currently broken in all cases
and needs to be fixed since the CPM/CPM2
could have up to six UART ports.

> Now I don't know anything about the Altix card, so I don't know if
> it's possible to use that card on a system with a CPM or a QE. If
> it isn't, then I don't know if overlapping minor numbers is still a
> problem.

I don't think that would be a problem, and I'd like the
CPM/QE to share devices because it makes the
software distributions common to all Freescale
embedded processors.

> If we move CPM/QE to 192, then I can change the CPM device driver
> to reflect that, but I don't know what that means for older kernels.

That would be bad. It has nothing to do with the
kernel, but we have finally survived the distribution
updates to ttyCPM, and I don't want to go through
that again just because of QE.

Thanks.

-- Dan