SCSINoLUN released

[SpeedGeek]

SCSINoLUN V1.5 ©SpeedGeek 2015.

INTRODUCTION:
SCSINoLUN is a small patch program intended for the OS3.5/3.9 versions of
HDtoolBox. Unfortunately, these versions no longer support the Tooltype
SCSI_MAX_LUN. This was very useful to many third party SCSI device
users (e.g. omniscsi.device) because they lack the ability to disable LUN scans at the driver level. It can take a full minute or longer to scan the SCSI bus for all LUNs which is very annoying especially if you don't need any LUN support!

SCSINoLUN doesn't prevent HDtoolBox (or any other SCSI tools) from scanning for LUNs. But it does dramatically speed up the LUN scan (even faster than the scsi.device with LUNs disabled). My system now completes the scan in approx. 6 seconds! But of course, your mileage will vary with CPU and SCSI controller speed.

REQUIREMENTS:
- Any 68K Amiga with a SCSI controller supporting scsidisk.h unit numbers
(e.g. A2091 = Yes, A2090 = No)
- System hardware not needing LUN support (e.g. SCSI card reader = No)
- Device name with 'scsi' characters (in lower case) and a maximum length of 24 characters
- OS2.x or higher (OS1.3 maybe it works, but don't send me any bug reports!)

Enjoy!

[SpeedGeek]

** NEWS UPDATE **

V1.1 released - removed Debug symbols to make the executable a few hundred bytes smaller (Sorry, default assembler option caused bloated code).

[SpeedGeek]

** 2ND NEWS UPDATE **

v1.2 Released - Optimized parse board number code (8 bytes saved!)

[voxel]

cool! thanks speedy ^^)

[SpeedGeek]

** 3RD NEWS UPDATE **

v1.3 released - added simple parse LUN skip code for clipboard.device open calls

(Thanks to christof "at" kass.de for the bug report!)

[SpeedGeek]

** 4TH NEWS UPDATE **

v1.4 released - Replaced skip code with new qualify code for scsi.device open calls

UPDATE:
Due to the possibility of virtual devices using Unit numbers > 9 (even
devices which don't actually use this many Units like AHI) the only reliable
fix for SCSINoLUN was to qualify scsi.device open calls before parsing any
LUNs. Unfortunately, the new qualify code makes the patch a little larger
and slower than previous releases.

[SpeedGeek]

** 5TH NEWS UPDATE **

v1.5 released - Optimized and combined Board/LUN parse code (20 bytes saved!)

UPDATE:
Due to the possibility of virtual devices using Unit numbers > 9 (even
devices which don't actually use this many Units like AHI) the only reliable
fix for SCSINoLUN was to qualify scsi.device open calls before parsing any
LUNs. Fortunately, the Parse LUN code has been optimized further to
compensate for overhead of the qualify code.

EDIT:
The few who downloaded v1.5 on or before May 2, 2015 may have downloaded a bugged version of v1.5. Sorry, but it wasn't worth doing another version release and it's been corrected now.