After some prompting from Adrian Bunk here is an update to the scsi mid level to lower level driver (A)PI document. Comments welcome. This patch was sent a month ago but received no comments and has not made it into the kernel. This patch is against lk 2.6.9-rc1. The scsi_mid_low_api.txt file has had a one line change since lk 2.6.8-rc1. Doug Gilbert