Subject: Re: accessing IDE hard drive via pcmcia card (redirected from netbsd-users)
To: None <>
From: Martin Husemann <>
List: tech-kern
Date: 05/23/2004 02:42:11
On Sun, May 23, 2004 at 08:10:00AM +0900, ITOH Yasufumi wrote:

> I think the problem is that the pcmcia/cardbus driver turns
> on and off the device too frequently during probe/attach (kern/8731).

It's been a while, but last I looked there was one power up-probe-power-down
phase, optionally followed by another power-up-on-mount. I don't see how you
could optimize that.

> I think we can fix both problems by delaying power down for a while
> (say 5s) after power-down requests.

There is a final flush command to the drive before power is turned off,
so this should not be needed - IIUC.