| This archive directory contains programs the use the Linux SCSI |
| subsystem and typically use the SCSI generic interface (sg) as |
| well. |
| |
| The programs in this directory are fully functional but have been |
| "retired" from the main sg3_utils directory most likely because |
| their functionality is done in another (perhaps better) way. |
| |
| The last time I checked these programs compiled and built and |
| didn't depend on too many other things (see the Makefile in the |
| parent directory for ideas). |
| |
| Since I actively use some of these programs for testing, a Makefile has |
| been set up which builds: |
| - sgq_dd [a dd variant the uses a dispatch loop rather than |
| POSIX threads (as does sgp_dd)] |
| - sg_hold holds a sg device open and periodically sends a TEST |
| UNIT READY command to the device |
| - sg_poll [internal testing] |
| - isosize available in util-linux-2.10s and later |
| |
| The sg_lib.h and llseek.h headers have simply been copied from the parent |
| directory. |
| |
| The very useful rescan-scsi-bus.sh script from Kurt Garloff |
| <kurt at garloff dot de> is included in this directory. |
| |
| A test program called sg_bus_xfer.c exercises a patch that adds a |
| SG_FLAG_BUS_ADDR capability. This allows a bus address (e.g. PCI |
| video card's frame buffer) to be passed through to a SCSI adapter |
| to side step various buffer copies. See: |
| http://www.torque.net/sg/mem2disk.html |
| |
| Doug Gilbert |
| 3rd September 2004 |
