[9374] in linux-scsi channel archive
Re: finding target id of a scsi device [and back :-)?]
daemon@ATHENA.MIT.EDU (Giuseppe Corbelli)
Sat Aug 12 05:53:50 2000
Date: Fri, 11 Aug 2000 16:44:27 +0200 (CEST)
From: Giuseppe Corbelli <cowo@yoda.ing.unibs.it>
To: Douglas Gilbert <dgilbert@interlog.com>
Cc: "linux-scsi@vger.rutgers.edu" <linux-scsi@vger.rutgers.edu>
In-Reply-To: <Pine.LNX.4.21.0008050950420.584-100000@braveheart.cowo.net>
Message-ID: <Pine.LNX.4.21.0008111643570.9369-100000@braveheart.cowo.net>
MIME-Version: 1.0
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On Thu, 3 Aug 2000, Douglas Gilbert wrote:
> >
> > is there a way in user-space to map from the dev_t ( retrive from
> > stat(2) ) to the scsi target & logical ids?
> > if no can i do it in kernel-space ?
>
> With an open file descriptor to a SCSI device the
> SCSI_IOCTL_GET_IDLUN ioctl() can be used.
> The struct associated with this ioctl() is
> described in:
> http://www.torque.net/scsi/linux_scsi_24
>
> You may also be able to deduce it from looking at
> 'cat /proc/scsi/scsi' [but that is a bit hard to
> parse].
I'd like to "extend the original question" :-)
How can I translate between BUS,ID,LUN <-> sg <-> sr (hd)?
Of course I should take a look at cdrecord's source but it's too hard for
me without documentation. Forgive me :-)
--
Giuseppe "Cowo" Corbelli -->> Riding on Linux-2.2.16
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