Here's udevinfo from an etch/sid install with an old Adaptec 2940 (since Dann asked):
looking at device '/block/sr0':
KERNEL=="sr0"
SUBSYSTEM=="block"
SYSFS{stat}==" 0 0 0 0 0 0
0 0 0 0 0"
SYSFS{size}=="2097151"
SYSFS{removable}=="1"
SYSFS{range}=="1"
SYSFS{dev}=="11:0"
looking at device
'/devices/pci0000:00/0000:00:0b.0/host0/target0:0:4/0:0:4:0':
ID=="0:0:4:0"
BUS=="scsi"
DRIVER=="sr"
SYSFS{ioerr_cnt}=="0x1f0e86"
SYSFS{iodone_cnt}=="0x237e3a"
SYSFS{iorequest_cnt}=="0x237e47"
SYSFS{iocounterbits}=="32"
SYSFS{timeout}=="0"
SYSFS{state}=="running"
SYSFS{rev}=="1.23"
SYSFS{model}=="CD-Writer+ M820 "
SYSFS{vendor}=="hp "
SYSFS{scsi_level}=="3"
SYSFS{type}=="5"
SYSFS{queue_type}=="none"
SYSFS{queue_depth}=="2"
SYSFS{device_blocked}=="0"
looking at device '/devices/pci0000:00/0000:00:0b.0/host0/target0:0:4':
ID=="target0:0:4"
BUS==""
DRIVER==""
looking at device '/devices/pci0000:00/0000:00:0b.0/host0':
ID=="host0"
BUS==""
DRIVER==""
looking at device '/devices/pci0000:00/0000:00:0b.0':
ID=="0000:00:0b.0"
BUS=="pci"
DRIVER=="aic7xxx"
SYSFS{modalias}=="pci:v00009004d00007178sv00000000sd00000000bc01sc00i00"
SYSFS{local_cpus}=="1"
SYSFS{irq}=="10"
SYSFS{class}=="0x010000"
SYSFS{subsystem_device}=="0x0000"
SYSFS{subsystem_vendor}=="0x0000"
SYSFS{device}=="0x7178"
SYSFS{vendor}=="0x9004"
looking at device '/devices/pci0000:00':
ID=="pci0000:00"
BUS==""
DRIVER==""
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