bin/98502: "iostat" does not report statistics for atapi cdrom

[girish]

>Number:         98502
>Category:       bin
>Synopsis:       "iostat" does not report statistics for atapi cdrom
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Sun Jun 04 19:10:15 GMT 2006
>Closed-Date:
>Last-Modified:
>Originator:     girish
>Release:        6.1  (i386)
>Organization:
none (student)
>Environment:
FreeBSD nixfreak. 6.1-RELEASE FreeBSD 6.1-RELEASE #0: Sun May  7 04:32:43 UTC 2006     root at opus.cse.buffalo.edu:/usr/obj/usr/src/sys/GENERIC  i386
>Description:
"iostat" does not show statistics for atapi cdrom devices.

I have noticed this problem since 5.x release.

When I load the "atapicam" kernel module the iostat output shows the statistics (MB/s) for "cd0".

I have used 3 atapi cdroms from different manufacturers (LG cdrom,Samsung combo drive, LiteON combo drive) all of them work fine except that iostat does'nt show statistics for the "acd" devices.

There is another thing - the 'burncd' utility fails during the "fixating" phase
of cd-burning but when the atapicam module is loaded the cd's are burned successfully. 

Are both these problems related to the "acd" driver?
>How-To-Repeat:
run "iostat" with an atapi cdrom 
>Fix:
None
>Release-Note:
>Audit-Trail:
>Unformatted: