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SubjectRe: [patch 2/4] scsi: expose AN support to user space
On Wed, 15 Aug 2007 09:01:49 -0500
James Bottomley <James.Bottomley@SteelEye.com> wrote:

> On Wed, 2007-08-15 at 04:13 -0400, Jeff Garzik wrote:
> > Kristen Carlson Accardi wrote:
> > > If a scsi_device supports async notification for media change, then
> > > let user space know this capability exists by creating a new sysfs
> > > entry "media_change_notify", which will be 1 if it is supported, and
> > > 0 if not supported. Create a routine which allows scsi devices to
> > > send a uevent when media change events occur.
> > >
> > > Signed-off-by: Kristen Carlson Accardi <kristen.c.accardi@intel.com>
> >
> > if James is happy with this patch, I'm happy with patch #2 and #3
>
> Actually, we just got a second potential consumer ... although I'll
> reprod to have the reporter send it to the list. It's a device that
> needs notice of report luns data changing. The proposed mechanism looks
> a bit narrow now (too tied to media change). I'll see if I can propose
> a more generic update.
>
> James
>

Too narrow because it's tied to scsi_device? Obviously it'd be easy
to expand the scsi_device_event enum to include LUNS_DATA_CHANGE or
something, and even the scsi_device_event_info struct can easily be
expanded if you need more info attached to the event. Let me know if
there's something specific I can help with.

Kristen
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