Re: SCSI device numbering (was: Re: Ideas for v2.1

Eric Youngdale (
Tue, 2 Jul 1996 10:28:06 -0400

>Oh, btw, we should not need to put the device type into the device
>number: there is no reason why CD/disk/tape should show up in the device
>number, because it's not something that _should_ be seen (the driver just
>has to keep track of what kind of device a certain ID/Lun combination is,
>the same way we already keep track of sizes).

Not completely true. The scsi-generics interface is a secondary
interface to all of the physical devices that let users do direct scsi
programming of a device. For disks and cdroms there isn't a problem,
since the generics interface uses character devices, but with tapes
there would be an ambiguity that would somehow need to be resolved.


"The woods are lovely, dark and deep.  But I have promises to keep,
And lines to code before I sleep, And lines to code before I sleep."