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SubjectRe: possible SCSI device numbering solution
Date
>> The major number is useful for character devices, which can be
>> split 12:20. For block devices, a block device is just a block
>> device. If you just need a major number to fill some software
>> "need", then just make it 0 for all block devices.
>
> Huh? The major number is the pointer to the driver; this has to be
> encoded one way or the other, and it might as well be done uniformly
> and efficiently. I'd go for 12:20 if it is deemed enough (which I am
> not really sure about), but dropping the major is a ludicrous idea.

If you want consistency, then try this for block devices:

4 type
4 controller
4 bus
----------
8 device
8 lun
4 partition
That gets you a 12:20 split with enough information in the major.


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