atapicam and cd-rw problem, no cd0 but acd0 some error

[Joe Altman]

On Thu, Jun 14, 2007 at 12:00:22PM +0000, freebsd-stable-request at freebsd.org wrote:

>   13. atapicam and cd-rw problem, no cd0 but acd0 some error
>       (Momchil Ivanov)
>   22. Re: atapicam and cd-rw problem, no cd0 but acd0 some error
>       (Tom Evans)
> ------------------------------
> 
> Message: 13
> Date: Wed, 13 Jun 2007 20:34:19 +0200
> From: Momchil Ivanov <idiotbg at gmail.com>
> Subject: atapicam and cd-rw problem, no cd0 but acd0 some error
> 
> Hi guys,
> 
> I am running  6-STABLE as of today and I cannot use the CD-RW on my IBM T40 to 
> burn CDs. When I put atapicam_load="YES" in loader.conf or compile it in the 
> kernel I see the following error
> acd0: FAILURE - INQUIRY ILLEGAL REQUEST asc=0x24 ascq=0x00 sks=0x40 0x00 0x01
> and no /dev/cd0 is created. I don`t see the above error without atapicam 
> loaded or in kernel. This is not something new, I haven`t been able to 
> get /dev/cd0 since more than a month following 6-STABLE, don`t know if it 
> ever worked on 6 or 6.x, but I certainly cannot get it to work on 6-STABLE. 
> Any help would be appreciated :) I would be happy ot be able to burn CDs.
> 
> I have acd0: CDRW <TOSHIBA DVD-ROM SD-R9012/1121> at ata1-master UDMA33
> and camcontrol shows:
> <TOSHIBA DVD-ROM SD-R9012 1121>    at scbus2 target 0 lun 0 (pass1)
> 
> Thanks
>   
> ------------------------------
> 
> Message: 22
> Date: Thu, 14 Jun 2007 11:42:20 +0100
> From: Tom Evans <tevans.uk at googlemail.com>
> Subject: Re: atapicam and cd-rw problem, no cd0 but acd0 some error
> 
> The error message is benign - the controller tries to send a command to

If it's benign, then why does this occur with the error message
(quoting the OP):

"...I haven`t been able to get /dev/cd0 since more than a month
following 6-STABLE, don`t know if it ever worked on 6 or 6.x, but I
certainly cannot get it to work on 6-STABLE. Any help would be
appreciated :) I would be happy ot be able to burn CDs." 

Which says to me that his drive doesn't work with atapicam in his
kernel, and has not worked for at least one month. This was my
experience, until I removed atapicam from my kernel.

To the OP: I recommend removing atapicam as a device from your kernel
config; this remedied the issue for me. I could not use my Plextor,
at all, with atapicam as a device in my kernel config.

-- 
In other news, the weather is supposed to be nice in Southern France
tomorrow.