Messages in this thread |  | | Date | Wed, 27 Sep 2000 23:02:17 +0100 | From | Philipp Rumpf <> | Subject | Re: Russell King forks ARM Linux. |
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On Wed, Sep 27, 2000 at 02:30:13PM -0700, H. Peter Anvin wrote: > Russ is 100% correct that different drivers shouldn't use the > same device numbers, unless they are: > > a) mutually exclusive, > b) interface compatible, *AND* > c) handle all arbitration necessary.
This doesn't handle the watchdog driver case, but that's special anyway. (All watchdog drivers use the same device number, which has the nice effect of not loading the softdog driver when you have a real hardware watchdog and a driver for it).
> If (a), (b) and (c) are all satisfied, it is often justified to share > device numbers and device nodes.
Could this go into the next revision of Documentation/devices.txt ? There certainly doesn't seem to be a good place to point people to right now.
Philipp Rumpf - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org Please read the FAQ at http://www.tux.org/lkml/
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