Subject: documentation for sys/sys/buf.h:struct buf
To: None <>
From: Jochen Kunz <>
List: tech-kern
Date: 02/07/2002 22:29:53

I am working on a RX01/02 floppy disk driver for the VAX and currently
struggling with the strategy and intrrupt functions. Main problem at the
moment is the lack of documentation for struct buf. The comments in
sys/sys/buf.h are a bit sparse and not sufficient. I got a guess what
some fiels are good for from other drivers, but guessing should not be
the bais for kernel code. 

Also: What ioctls must / should be implemented in a disk driver? disk(9)
says nothing about ioctls and disklabel(9) only mentions DIOCWLABEL.