Re: ide cdrom sg like access / rpcmgr ?

Jens Axboe
2003-11-12T11:36:06Z

On Mon, Nov 10 2003, Andreas Jellinghaus wrote:
> Hi,
>
> Is there some documentation on how to access an ide cdrom in 2.6.0*
> for converting an app that used ide-scsi and sg devices?
> (I'd like to use rpcmgr11.c to unlock my dvd drive. maybe someone
> already ported it to kernel 2.6.*?)
>
> the original source uses:
> fd = open(..., O_RDWR);
> write, read and ioctl(fd, SG_NEXT_CMD_LEN, &cmdlen);
> (but the ioctl only on lg drives, mine is a hitachi,
> so that shouldn't be necessary).
>
> or will I need ide-scsi to do these things?

Post the code and I'll show you how to do it. Generally, you should just
use SG_IO or CDROM_SEND_PACKET for this.

--
Jens Axboe