Subject: Re: Poor behavior on I/O error...
To: Frank van der Linden <>
From: Todd Vierling <>
List: tech-kern
Date: 04/22/2001 09:29:41
On Sun, 22 Apr 2001, Frank van der Linden wrote:

: > IIRC, there is a BIOS call on i386 to check if there is a medium
: > loaded in the drive; that would be worth checking.
: Well.. if the BIOS can do it, it must be doable by the driver itself
: which would obviously the preferable solution.

This depends on the drive's (and controller's) ability to send signals on
the DC (diskchange) line -- not all do, so you need to keep that in mind
when adding the support.

-- Todd Vierling <>  *  Wasabi NetBSD:  Run with it.
-- NetBSD 1.5 now available on CD-ROM  --