device atapicam on r240673

Hello,

For years I have put 'device atapicam' in my kernel.  If my memory serves 
my well, this was to assist with dvd recording.  I must have missed 
something.  Is it now as simple as adding hw.ata.atapi_dma="1" to 
/boot/loader.conf?

cc -c -O2 -frename-registers -pipe -fno-strict-aliasing  -std=c99 -g -Wall 
-Wredundant-decls -Wnested-externs -Wstrict-prototypes 
-Wmissing-prototypes -Wpointer-arith -Winline -Wcast-qual  -Wundef 
-Wno-pointer-sign -fformat-extensions  -Wmissing-include-dirs 
-fdiagnostics-show-option   -nostdinc  -I. -I/usr/src/sys 
-I/usr/src/sys/contrib/altq -D_KERNEL -DHAVE_KERNEL_OPTION_HEADERS 
-include opt_global.h -fno-common -finline-limit=8000 --param 
inline-unit-growth=100 --param large-function-growth=1000 
-fno-omit-frame-pointer -mcmodel=kernel -mno-red-zone -mno-mmx -mno-sse 
-msoft-float  -fno-asynchronous-unwind-tables -ffreestanding 
-fstack-protector -Werror  vers.c
ctfconvert -L VERSION -g vers.o
linking kernel.debug
atapi-cam.o: In function `atapi_action':
/usr/src/sys/dev/ata/atapi-cam.c:436: undefined reference to 
`ata_controlcmd'
/usr/src/sys/dev/ata/atapi-cam.c:651: undefined reference to 
`ata_queue_request'
*** [kernel.debug] Error code 1

Stop in /usr/obj/usr/src/sys/D.
*** [buildkernel] Error code 1

Stop in /usr/src.
*** [buildkernel] Error code 1

Stop in /usr/src.
(132) _at_ 23:41:19>

Darrel