Code:
# ls /sys/pci
agp.c agp_nvidia.c amdsmb.c if_sis.c if_wb.c ncrreg.h
agp_ali.c agp_sis.c if_mn.c if_sisreg.h if_wbreg.h nfsmb.c
agp_amd.c agp_via.c if_pcn.c if_ste.c if_xl.c viapm.c
agp_amd64.c agppriv.h if_pcnreg.h if_stereg.h if_xlreg.h xrpu.c
agp_ati.c agpreg.h if_rl.c if_tl.c intpm.c
agp_i810.c agpvar.h if_rlreg.h if_tlreg.h intpmreg.h
agp_if.m alpm.c if_sf.c if_vr.c locate.pl
agp_intel.c amdpm.c if_sfreg.h if_vrreg.h ncr.c
# uname -a
FreeBSD killasmurf.pc 7.0-RELEASE FreeBSD 7.0-RELEASE #20: Wed Jul 9 19:09:03 EEST 2008
killasmurf@killasmurf.pc:/usr/obj/usr/src/sys/killabsd i386
I have them in /sys/pci