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Re: SCSI Tapes and devfs

To: devfs@xxxxxxxxxxx
Subject: Re: SCSI Tapes and devfs
From: "brett holcomb" <brettholcomb@xxxxxxxxxxx>
Date: Fri, 17 Jan 2003 07:44:02 -0500
In-reply-to: <6134254DE87BD411908B00A0C99B044F03A0B5DD@MOWD019A>
Sender: devfs-bounce@xxxxxxxxxxx

On Fri, 17 Jan 2003 09:27:32 +0300 Borzenkov Andrey <Andrey.Borzenkov@xxxxxxxxxxx> wrote:
This is the sole responsibility of corresponding driver. If we speak about
SCSI tape, this happens in driver attach method.


In the case
of st being a module and me loading it at startup time
causes devfs to see it.  But what SHOULD trigger this if
the st support is built into a kernel - what is the
mechanism there for Linux?


The same modulo bugs. St's attach should run in exactly the same fashion and
register tape (if found). Are you sure you have not built driver for your
SCSI adapter as module? Then when st is initialized at boot time it can't
find any tapes because there is no adapter yet. This would perfectly explain
why tape was not there initially but appeared later (due to module
autoloading).

No, the adapter is built into the kernel - I verified that.


-andrey


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