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

[Brian King <brking@us.ibm.com>]

Newer kernels also have kobject_uevent, which lets any application use 
netlink to look for hotplug events.

-Brian

Mukker, Atul wrote:
> Thanks for the suggestion. After more exploration, looks like different
> distribution have different implementations for /sbin/hotplug. This may
> aggravate the issue for applications. For now, we will stick with a wait and
> watch after bus scan :-(
> 
> Will probe the linux-hotplug-devel@lists.sourceforge.net list for more
> pointers
> 
> Thanks
> 
> ===========================
> Atul Mukker
> Architect, Drivers and BIOS
> LSI Logic Corporation
> 
> 
> 
>>-----Original Message-----
>>From: Patrick Mansfield [mailto:patmans@us.ibm.com] 
>>Sent: Tuesday, January 25, 2005 11:52 AM
>>To: Mukker, Atul
>>Cc: 'James Bottomley'; Linux Kernel; SCSI Mailing List
>>Subject: Re: How to add/drop SCSI drives from within the driver?
>>
>>Atul -
>>
>>On Tue, Jan 25, 2005 at 11:27:36AM -0500, Mukker, Atul wrote:
>>
>>>After writing the "- - -" to the scan attribute, the management 
>>>applications assume the udev has created the relevant 
>>
>>entries in the 
>>
>>>/dev directly and try to use the devices _immediately_ and 
>>
>>fail to see 
>>
>>>the devices
>>>
>>>Is there a hotplug event which would tell the management 
>>
>>applications 
>>
>>>that the device nodes have actually been created now and 
>>
>>ready to be used?
>>
>>Read the udev man page section, the part right before 
>>"FILES". Try putting a script under /etc/dev.d/default/*.dev. 
>>Then you can get more specific with an /etc/dev.d/scsi/*.dev 
>>script or something else.
>>
>>I just tried something simple but did not get it working.
>>
>>Try linux-hotplug-devel@lists.sourceforge.net list for help.
>>
>>-- Patrick Mansfield
>>
> 
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-- 
Brian King
eServer Storage I/O
IBM Linux Technology Center