This patch updates sys/scsi/od.c:
This patch updates sys/scsi/od.c:

  * Improve ficticious geometry translation.
  * CD compatible ioctl's, CDIOCALLOW, CDIOCPREVENT and CDIOCEJECT.
  * Additional sense code handling for some drives.

Reviewed by:	joerg
Submitted by:	akiyama@kme.mei.co.jp (Shunsuke Akiyama)

jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase