linux-kernel - Re: New true IDE compact flash driver starting point?

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Message-ID: <20090109182924.2d7580c2@lxorguk.ukuu.org.uk>
Date:	Fri, 9 Jan 2009 18:29:24 +0000
From:	Alan Cox <alan@...rguk.ukuu.org.uk>
To:	Dick Hollenbeck <dick@...tplc.com>
Cc:	Arnd Bergmann <arnd@...db.de>, linux-kernel@...r.kernel.org
Subject: Re: New true IDE compact flash driver starting point?

> 1) Since this is for a quasi realtime application, is there any 
> advantage to using the interrupt line regarding how the CPU spends its 
> idle time waiting for the flash?  (I have an interrupt line I can use.)  
> Currently I am not sending in the IRQ resource, resource array length of 
> 2, not 3.

For real time you may actually be better with the IRQless polling
behaviour as the driver and ATA library currently stands.
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