Subject: Re: [PATCH] 3/3 maple: update bus driver to support Dreamcast VMU
From: Adrian McMenamin <adrian@newgolddream.dyndns.info>
To: =?ISO-8859-1?Q?J=F6rn?= Engel <joern@logfs.org>
Cc: Paul Mundt <lethal@linux-sh.org>, Greg KH <greg@kroah.com>,
       dwmw2 <dwmw2@infradead.org>, LKML <linux-kernel@vger.kernel.org>,
       MTD <linux-mtd@lists.infradead.org>,
       linux-sh <linux-sh@vger.kernel.org>, Andrew Morton <akpm@osdl.org>
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Date: Mon, 24 Mar 2008 15:51:40 +0000
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On Mon, 2008-03-24 at 16:29 +0100, Jörn Engel wrote:
> On Mon, 24 March 2008 15:06:18 +0000, Adrian McMenamin wrote:
> > 
> > I don't think I have any alternative here. The problem is that the bus
> > checks periodically (every HZ ticks but that could be changed) if a
> > device remains connected to the system by queueing a status command. (If
> > the status command is replied to with a "No response" then that
> > indicates to the bus that the device has been removed.
> 
> Where does this queueing happen?  Somewhere in the kernel where we can
> control it or in hardware?

Well, the queuing of the status command is under software control.

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