Re: How to add/drop SCSI drives from within the driver?

[Matt Domsch]

On Fri, Dec 03, 2004 at 10:29:29AM -0500, Bagalkote, Sreenivas wrote:
> I agree. The sysfs method would have been the most logical way of doing it.
> But then application becomes sysfs dependent. We really cannot do that.

Why?  With my efibootmgr (a userspace app like your
megalib/megamgr/megamon), it looks for the existance of
/sys/whatever/, and then operates with that if it is present.  Else it
looks for the existance of /proc/whatever (in your case
/proc/scsi/scsi) and does likewise.  No driver ioctl needed.
 
> Given that we have to do it from within the driver, is whatever I am doing
> right?

Doing it within the driver means you've got to release a new driver
for each affected OS, to avoid having to update the userspace app on
each OS.  I claim it's much easier to update a userspace lib/app than
it is to update a driver on each installed system.

Thanks,
Matt

-- 
Matt Domsch
Sr. Software Engineer, Lead Engineer
Dell Linux Solutions linux.dell.com & www.dell.com/linux
Linux on Dell mailing lists @ http://lists.us.dell.com
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