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From: Thomas Gleixner <tglx@linutronix.de>
To: "Schaefer Dr, Frank-Rene ()" <fschaef9@visteon.com>
Cc: linux-kernel@vger.kernel.org
Subject: RE: Interrupt Latencies
Date: Tue, 22 Feb 2011 18:17:25 +0100 (CET)	[thread overview]
Message-ID: <alpine.LFD.2.00.1102221814430.2701@localhost6.localdomain6> (raw)
In-Reply-To: <060E4307CE6CA14BB4F7B4A25ECA052904BB6E98@VEUMBV03.vistcorp.ad.visteon.com>

On Tue, 22 Feb 2011, Schaefer Dr, Frank-Rene () wrote:

Please do not top post.

> We are using GPIO pins and map them to IRQ. 

How are the GPIO pins accessed ? Are they memory mapped registers or what ?

> The underlying driver seems to use message signaled interrupts.

That does not answer which driver is involved. W/o seing the code I
can't tell much.

Thanks,

	tglx


      reply	other threads:[~2011-02-22 17:17 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-02-22  9:35 Schaefer Dr, Frank-Rene ()
2011-02-22 12:33 ` Clemens Ladisch
2011-02-24  8:01   ` Schaefer Dr, Frank-Rene ()
2011-02-24 12:18     ` Thomas Gleixner
2011-02-22 14:39 ` Thomas Gleixner
2011-02-22 16:10   ` Schaefer Dr, Frank-Rene ()
2011-02-22 17:17     ` Thomas Gleixner [this message]

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