Re: PATA hotplug

[Paul Wakeman <prwakeman@yahoo.com>]

--- Alan Cox <alan@lxorguk.ukuu.org.uk> wrote:

> On Fri, 17 Aug 2007 08:56:35 -0700 (PDT)
> Paul Wakeman <prwakeman@yahoo.com> wrote:
> 
> > Does libata support PATA hotplug?
> > 
> > I have a PCMCIA CF using TrueIDE mode and want to be able to
> hotplug CF
> > cards. Would I get hotplug for free if I convert the existing IDE
> > driver to a libata pata platform driver?
> 
> If your hardware supports PATA hotplug (most doesn't) then you can
> tell
> the kernel to remove the device, pull it, add a new one and tell the
> kernel to rescan (exactly as you do with any other scsi device).
> Autodetect support right now is only in the SATA side and afaik no
> PATA
> controller supports PATA hot plug autodetect.

My target is an embedded SoC which has PATA autodetect support.

First, I need to convert the vendor-supplied legacy IDE driver to a
PATA platform driver. Can you recommend best-of-breed existing PATA
drivers to use as a reference for this work? 

Thanks

-paul


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