Shem Multinymous wrote:
Hi Alan,
On 5/11/06, Alan Cox <alan@xxxxxxxxxxxxxxxxxxx> wrote:
On Gwe, 2006-05-12 at 00:32 +0900, Tejun Heo wrote:
> Convert ata_piix to new probing mechanism. Automatic hotplug is not
> supported due to hardware limitation (no PHY event interrupt), but
> warm plugging works.
True for the SATA ports but don't try it on the PATA ones. The PATA side
requires the right buffers are present, and also in some situations that
IORDY is not in use before the unplug.
I'm not sure what you mean but the successful ThinkPad UltraBay
hotplugging which I reported earlier is with PATA DVD and PATA HDD, on
ICH6M with ata_piix. I tried it many times, with no problems or
unexpected dmesg entries.
As mentioned, it takes an extra ACPI command to electrically turn off
the port.
Yeap, notebooks are special. Those hotbays are equipped with special
power/signal connectors, circuits and switches to prevent things from
burning, but, in general, hot plugging/unplugging PATA devices can fry
the device and the controller.
--
tejun
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