Re: atapicam(4) as KLD?

В чт, 14/10/2004 в 16:29 -0400, Chuck Swiger пишет:
> Søren Schmidt wrote:
> > Chuck Swiger wrote:
> >> Michael Nottebrock wrote:
> >>> Easy workaround: Put atapicam into GENERIC. I'm waiting for that to 
> >>> happen ever since atapicam entered the tree.
> >>
> >> I'd strongly agree, unless there is a major downside to doing so.
> >>
> >> (Disclaimer: Having ATAPICAM in GENERIC would reduce my email support 
> >> burden for the dvd+rw-tools port by a noticable fraction.  :-)
> > 
> > But will do the opposite to my mailbox, and I *dont* support atapicam, 
> > so I think its a bad idea, besides I waste enough time as is, thanks...
> 
> My comment about email support was intended to be humorous.  If I didn't want 
> to provide technical support to other people, I probably wouldn't spend as 
> much time as I do answering people's questions, on list and off.
> 
> Be that as it may, Soren, I guess you're free to not welcome questions about 
> atapicam.  Would having it in GENERIC would make much difference to you if 
> other people are willing to answer any questions which get asked on the 
> mailing lists about it...?
> 
> Is burncd able to burn a DVD [+/-{R,W,RAM}] to an IDE device without using 
> ATAPICAM?  I think it is not unreasonable to expect the GENERIC kernel to be 
> able to burn DVDs, as that can make for a reasonable backup mechanism.

well, just format and burn DVD+RW with burncd - no problems, but

frankly speaking, I do not like idea to have two devices for each drive,
like :

acd0: CDROM <ASUS CD-S500/A/1.4K> at ata1-master UDMA33
acd1: CDRW <CD-W524E/1.0A> at ata1-slave UDMA33
cd0 at ata1 bus 0 target 0 lun 0
cd0: <ASUS CD-S500/A 1.4K> Removable CD-ROM SCSI-0 device 
cd0: 33.000MB/s transfers
cd0: Attempt to query device size failed: NOT READY, Medium not present
cd1 at ata1 bus 0 target 1 lun 0
cd1: <TEAC CD-W524E 1.0A> Removable CD-ROM SCSI-0 device 
cd1: 33.000MB/s transfers
cd1: Attempt to query device size failed: NOT READY, Medium not present

% ls /dev/*cd*
/dev/acd0       /dev/acd1       /dev/cd0        /dev/cd1
%

It can mislead people. What happens if one will do both burncd
on /dev/acd0 and cdrecord on /dev/cd0 at same time ?

Atapi-cam strange add-on it should be basic mapping (no adX/acdX) or no
mapping at all (only atX/acdX).

I like idea to see all direct access drives from user-land with same
interface (like USB, SCSI, FireWire drives all seen as daX or cdX/passX)

> [ Peripheral note: DVDs are OK for backup, that is, but I much prefer tapes 
> for durability and long term storage.  Quantum sDLT 220 drives rock. ]

-- 
Vladimir B. Grebenchikov
vova_at_fbsd.ru