Re: MMC Driver RFC

[Richard Purdie]

Ian Molton:
> > That depends whether the hardware already provides 0.5s of debounce
> > already.  Some people do, some people don't.  This is why it needs to
> > be left to the implementation and not a core issue.
>
> Agreed. IIRC my toshiba PDAs *dont* provide a delay. OTOH they also 
> provide *two* ways of detecting card presence...

I hadn't realised some devices had hardware debounce and now agree its not a 
core problem.

> ISTR seeing a SD card doc at some point

The one I'm aware of is 
http://www.sdcard.org/sdio/Simplified%20Physical%20Layer%20Specification.PDF 
.

> Well I *know* I never saw the specs from the SD forum. I hacve never 
> reverse engineered a SDHC core driver either (I have reverse engineered a 
> chip driver but it contained no SD *protocol* information.
>
> as such my code should be 100% safe to commit to the kernel.

Having read things and talked to people (both before and since my posts on 
LKML), that is my conclusion as well.

> PS. Richard - I am here - hope you receive this!

I did. Have my mails to you been getting through?

Richard 

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/