Messages in this thread | | | Date | Wed, 24 Nov 2010 12:08:18 -0600 | From | Scott Wood <> | Subject | Re: How do I choose an arbitrary minor number for my tty device? |
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On Wed, 24 Nov 2010 21:23:47 +1100 Michael Ellerman <michael@ellerman.id.au> wrote:
> On Thu, 2010-11-18 at 12:13 -0600, Scott Wood wrote: > > Unfortunately, it's not an exact match, and the fact that reg doesn't > > translate to a physical address means that AFAICT you'll currently get > > something like "byte-channel.nnn", where "nnn" is an arbitrary > > kernel-assigned number. > > Can you not use device_rename() ?
Ah, didn't know about that. Still, might be nice to add support for "handle" nodes at the infrastructure level rather than in each driver.
> > It would be nice if platform devices that are created from device tree > > nodes included a link to the corresponding /proc/device-tree node in > > their sysfs node. > > It's not a link, but the OF path is in devspec, so you can work it out > fairly easily.
Hmm, I see a "devspec" in PCI devices, but not in devtree-probed platform devices. of_bus_type_init isn't being called from anywhere but the ibmebus code. It looks like this was a casualty of merging of_platform with platform (commit eca3930163ba8884060ce9d9ff5ef0d9b7c7b00f).
-Scott
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