linux-kernel - Re: [PATCH 2.6.21-rc1] ibmebus: Support dynamic addition and removal of adapters

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Message-ID: <OFF5C27801.F7BCD37B-ON85257285.0001F062-85257285.00028E7E@de.ibm.com>
Date:	Fri, 16 Feb 2007 19:27:57 -0500
From:	Joachim Fenkes <FENKES@...ibm.com>
To:	John Rose <johnrose@...tin.ibm.com>
Cc:	Hoang-Nam Nguyen <hnguyen@...ux.vnet.ibm.com>,
	Me Notes <johnrose@...ibm.com>,
	lkml <linux-kernel@...r.kernel.org>,
	External List <linuxppc-dev@...abs.org>,
	Paul Mackerras <paulus@...ba.org>,
	Paul Mackerras <pmac@....ibm.com>
Subject: Re: [PATCH 2.6.21-rc1] ibmebus: Support dynamic addition and	removal of
 adapters

John Rose <johnrose@...tin.ibm.com> wrote on 15.02.2007 14:57:37:

> Looks good.  Questions: how can the user space tools verify the success
> of an add or remove? 

If the probe operation succeeds, the respective device will show up 
beneath
/sys/bus/ibmebus/devices.
 
> Also, will /sys/bus/ibmebus exist even if the system booted with no LHEA
> nodes?

Sure.
 
> Can we also have an attribute "devspec" that communicates the open
> firmware path through sysfs?

This is already taken care of by of_device_register().

Cheers,
  Joachim

---
Joachim Fenkes  --  eHCA Linux Driver Developer and Hardware Tamer 
extraordinaire
IBM Deutschland Entwicklung GmbH  --  Dept. 3627 (I/O Firmware Development 
2)
Schoenaicher Strasse 220  --  71032 Boeblingen  --  Germany
eMail: fenkes@...ibm.com  --  Phone: +49 7031 16 1239 

Vorsitzender des Aufsichtsrats: Johann Weihen  --  Geschäftsführung: 
Herbert Kircher
Sitz der Gesellschaft: Böblingen  --  Registergericht: Amtsgericht 
Stuttgart, HRB 243294


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