Compact Flash Questions

Compact Flash Questions

[Yigal Sadgat]

Is this the right place to discuss CF low-level questions like Kernel 
drivers?

I wrote the Kernel to support CF drives in IDE mode several years ago but 
now there are strange things coming back from the field that compel me to go 
back and evaluate many design decisions. For instance, can you really ignore 
bit(2) (CORR) in the Status register offset 7 that tells you that the CF has 
detected and corrected a soft error?, etc.

Thanks,
Y. Sadgat
GCT 

Re: Compact Flash Questions

[Josh Boyer]

On Mon, 5 May 2008 08:36:15 -0700
"Yigal Sadgat" <YSadgat1@gcte.com> wrote:

> Is this the right place to discuss CF low-level questions like Kernel 
> drivers?

Sorry, no.  Compact Flash presents itself as an IDE device, and does
not allow access to the raw flash contained within.  MTD is used for
accessing raw flash.

You might try posting your questions on the linux kernel mailing list.

josh

Re: Compact Flash Questions

[Jörn Engel]

On Mon, 5 May 2008 11:56:22 -0500, Josh Boyer wrote:
> On Mon, 5 May 2008 08:36:15 -0700
> "Yigal Sadgat" <YSadgat1@gcte.com> wrote:
> 
> > Is this the right place to discuss CF low-level questions like Kernel 
> > drivers?
> 
> Sorry, no.  Compact Flash presents itself as an IDE device, and does
> not allow access to the raw flash contained within.  MTD is used for
> accessing raw flash.
> 
> You might try posting your questions on the linux kernel mailing list.

linux-kernel@vger.kernel.org and possibly linux-ide@vger.kernel.org on
Cc:.  Ignoring any "error was corrected" information is bad advice
indeed, as such data should get rewritten immediately.  And if the
controller is not smart enough to do it automatically, enough errors
will accumulate over time to become uncorrectable.

Jörn

-- 
Write programs that do one thing and do it well. Write programs to work
together. Write programs to handle text streams, because that is a
universal interface.
-- Doug MacIlroy