Re: device atapicam not enabled in GENERIC kernel for FreeBSD 6.0-RELEASE

On Sunday 05 March 2006 22:24, Duane Whitty wrote:
On Sunday 05 March 2006 17:31, Kris

Kennaway wrote:
On Sun, Mar 05, 2006 at 05:12:36PM

-0400, Duane Whitty wrote:
On Saturday 04 March 2006 17:30,
Kris

Kennaway wrote:
On Sat, Mar 04, 2006 at
05:26:37PM

-0400, Duane Whitty wrote:
Hi,

Just wondering if anyone has
any information/opinion as to
why device atapicam is not
enabled by default in the
GENERIC kernel.

It's not an appropriate default,
since it modifies the way the ata
subsystem works in ways the
maintainer does not wish to
support,

Sorry, but do you mean the ata
subsystem maintainer or the
atapicam maintainer?

The former.

Is atapicam part of the base?

Yes.

I was
under the impression it implements
an abstracted SCSI interface over
the ata device subsystem but maybe
I'm not adequately understanding
what's really happening.

As the name suggests, it provides a
CAM front-end to the devices, which
is the same front-end used by the
SCSI devices, so tools that expect to
use CAM can work on the ATA devices
too.

Ah, ok -- CAM -- common access method.
I'm getting this

Just an observation but it seems as
though there is a great deal of use
being made of the atapicam
subsystem. I noticed for instance
that in addition to /dev/cd0 that
/dev/pass0 and /dev/da0 also did
not show up until I rebuilt with
atapicam or did I just miss them?

The equivalent devices have different
names under atapicam than ata, but
why do you think they are necessary?

because I misunderstood what umass
needed and I inappropriately
generalized on the basis of one port
(k3b)

Unless I'm wrong doesn't this mean
that usb drives and those types of
devices need the atapicam
subsystem?

I suspect you're wrong.

Kris

Hi,

Thanks Kris. Your suspicions were
correct. I was wrong. I re-read the
man pages for da, pass, and umass, and
nowhere did it say I needed atapicam.
So thanks for pointing me in the right
direction.

I rebooted with the GENERIC kernel,
plugged in my usb memory device, and
everything worked great.

The k3b port required this and I suppose
I generalized when I should not have.

Again, much thanks.

--Duane
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This reminds me to ask: I have ATAPICAM enable in my kernal, specifically so
that k3b can find my dvd+rw ... but no cd* devives appear in /dev, and k3b
cannot find anything no matter where I tell it to look .. I must be
overlooking something, but what?

--
Sure God created the world in only six days,
but He didn't have an established userbase.
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