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SubjectProposed IDE change
Andre,

As you know I have been looking at the task file issues with
implementing SMART and think I have figured it out. I am assuming the
ioctl command for sendings ATA commands is as follows:

ioctl ( device, HDIO_DRIVE_CMD, { TF.7 , TF.3, TF.1, TF.2} );

where
TF.7 is the IDE_CONTROL_REG
TF.3 is the IDE_SECTOR_REG
TF.1 is the IDE_FEATURE_REG
TF.2 is the IDE_NSECTOR_REG

The task file register values were not being sent to the hard drive
correctly. So I made the small patch below to deal with the problem of
SMART commands. It fixed the problem for mine and Ragnar's SMART
utilities. I have tested both utilities with the patch and they work. To
do it right, the ide_cmd function needs some changes. Which requires
also change ide-disk.c. I can do it if you would like.

The patch was made with the latest 2.2.12 kernel with the
ide.2.2.12.19990921.patch.gz

Michael Cornwell
cornwell@acm.org

patch to ide.c

1028c1028,1032
< }
---
> OUT_BYTE(args[2],IDE_FEATURE_REG);
> OUT_BYTE(args[1],IDE_SECTOR_REG);
> ide_cmd(drive, args[0], args[3], &drive_cmd_intr);
> return;
> }



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