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

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Date:	Fri, 09 Jan 2009 12:29:18 -0600
From:	Dick Hollenbeck <dick@...tplc.com>
To:	Arnd Bergmann <arnd@...db.de>
CC:	linux-kernel@...r.kernel.org
Subject: Re: New true IDE compact flash driver starting point?

Arnd Bergmann wrote:
> On Thursday 08 January 2009, Dick Hollenbeck wrote:
>   
>> I've done something similar to this for 8250 serial ports, but I am 
>> having a difficult time finding out how to do this with pata_platform.c
>>
>>     
>
> Just grep for pata_platform_info to find example code.
>
> 	Arnd <><
>   
Thanks again Arnd.  I did that yesterday and got it working last night!  
The only thing I have questions about are:

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.

2) I am getting this message during boot up:  "Driver 'sd' needs 
updating - please use bus_type methods".   Again this is kernel 2.6.26.  
It seems like this can be safely ignored, but if its easy to get rid of 
that I would be happy to back port a patch.

I really appreciate your help.

Dick Hollenbeck

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