I tried Doug's one-liner to select channel B, and the only change is an
extra stanza of debugging information (I was previously seeing only the
section with flags == 0x401):
Abort reset flags 0x401
while idle, LASTPHASE=0x1
SCSISIGI=0xfa
SEQADR=0x6 <-----
SSTAT0=0x5
SSTAT1=0x0
Abort reset flags 0x441
while idle, LASTPHASE=0x1
SCSISIGI=0xfa
SEQADR=0x5 <-----
SSTAT0=0x5
SSTAT1=0x0
Now what?
Steve