trying atausb instead of umass, part 2

[Steven Friedrich]

I tried to switch from umass to atausb, but I had trouble.

I also noticed that atausb is mentioned in the release notes for 6.2, but it's 
not mentioned in the man page for ata(4) or in the Handbook.

Searching the current and usb mailing lists didn't reveal much.

I commented out umass and added device atausb to my kernel config, rebuilt the 
kernel and when I booted, I get:
Apr  3 20:56:51 laptop kernel: acd1: DEVICE_RESET unsupported
Apr  3 20:56:51 laptop kernel: acd1: CDROM <U3 Cruzer Micro/2.16> at 
ata4-master USB2

about every two seconds I get:
Apr  3 20:56:51 laptop kernel: acd1: FAILURE - PREVENT_ALLOW ILLEGAL REQUEST 
asc=0x24 ascq=0x00
Apr  3 20:57:07 laptop kernel: acd1: FAILURE - PREVENT_ALLOW ILLEGAL REQUEST 
asc=0x24 ascq=0x00
Apr  3 20:57:48 laptop kernel: acd1: FAILURE - PREVENT_ALLOW ILLEGAL REQUEST 
asc=0x24 ascq=0x00
Apr  3 21:00:18 laptop kernel: acd1: FAILURE - PREVENT_ALLOW ILLEGAL REQUEST 
asc=0x24 ascq=0x00

Apparently, there's some magic that's not yet documented 8o)