Usage:

RegionSet DEVICE=DRIVE/K,REGION/N

Get region information from drive "CD0:":
RegionSet

Get region information from drive "CD1:":
RegionSet drive CD1:

Set "CD0:" to region 2:
RegionSet 2

Set "CD1:" to region 2:
RegionSet drive CD1: 1

Changes:

1.2 (27-Oct-2009)
 - Removed the io_Unit check from DoSCSICmd because some device drivers set
   this field to NULL even they open successfully

1.1 (26-Oct-2009)
 - First released version

 PERMSSN    UID  GID    PACKED    SIZE  RATIO METHOD CRC     STAMP          NAME
---------- ----------- ------- ------- ------ ---------- ------------ -------------
[generic]                  809    3152  25.7% -lh5- 24df Oct 26 23:51 RegionSet/endian.h
[generic]                  183     264  69.3% -lh5- 9f21 Oct 30 13:11 RegionSet/Makefile.AROS
[generic]                  194     285  68.1% -lh5- 9462 Oct 27 23:40 RegionSet/Makefile.MOS
[generic]                  194     277  70.0% -lh5- fe5b Oct 26 17:07 RegionSet/Makefile.OS3
[generic]                  201     279  72.0% -lh5- 96a4 Oct 26 15:51 RegionSet/Makefile.OS4
[generic]                 4068    9689  42.0% -lh5- 9dbf Nov  2 12:06 RegionSet/RegionSet.AROS
[generic]                 2404    7376  32.6% -lh5- fde3 Nov  2 12:05 RegionSet/regionset.c
[generic]                 3966    8620  46.0% -lh5- 8af3 Oct 27 23:40 RegionSet/RegionSet.MOS
[generic]                 2356    4072  57.9% -lh5- 7d35 Oct 27 21:36 RegionSet/RegionSet.OS3
[generic]                 4428   10756  41.2% -lh5- 3f9c Oct 27 21:36 RegionSet/RegionSet.OS4
[generic]                  381     684  55.7% -lh5- a740 Oct 28 09:42 RegionSet/regionset.readme
[generic]                  113     199  56.8% -lh5- 93c7 Oct 27 21:36 RegionSet/RegionSet_rev.h
[generic]                  127     245  51.8% -lh5- 427a Oct 27 21:36 RegionSet/RegionSet_rev.i
[generic]                    2       2 100.0% -lh0- 6795 Oct 27 21:36 RegionSet/RegionSet_rev.rev
[generic]                  133     258  51.6% -lh5- 053b Oct 27 21:36 RegionSet/RegionSet_rev.s
---------- ----------- ------- ------- ------ ---------- ------------ -------------
 Total        15 files   19559   46158  42.4%            Nov  5 10:14