Re: kern/46195: Unseen IDE CDROM drive on 6.0_BETA

[Aleksey Cheusov <cheusov%tut.by@localhost>]

On Thu, Mar 15, 2012 at 2:59 PM, Manuel Bouyer 
<bouyer%antioche.eu.org@localhost> wrote:
> On Thu, Mar 15, 2012 at 08:50:05AM +0000, Aleksey Cheusov wrote:
>>  I'm shocked. Changing CDROM drive to "master" has solved the problem.
>>  Now it is recognized correctly. Could you please explain why it is not
>>  recommended
>
> In T13/1532D Volume 1 Revision 2a "Information Technology - AT Attachment
> with Packet Interface ­ 7 Volume 1 (ATA/ATAPI-7 V1) ", chapter 5.15.2
> "Device 1 only configurations":
>        Host support of Device 1 only configurations is host specific.
>
> (T13/1532D is the one I have in hands to look at, older ATA standards said
> that this was an unsupported configuration).
>
> The consequence of this is that you can't reliably detect a slave
> device if there's no master, unless you accept to pay a 31s timeout on
> the nonexistent master in this case.

Ok, thanks. If you think there is nothing to fix in NetBSD and
appropriate specification
is implemented completely and correctly feel free to close this PR.
Let's call "local problem".

Anyway, thanks for fixing this annoying problem!