root@c720:/tmp # kenv | grep isl
hint.isl.0.addr="0x88"
hint.isl.0.at="iicbus0"
hint.isl.1.addr="0x88"
hint.isl.1.at="iicbus1"

root@c720:/tmp # kldload ig4
pci0: driver added
found->	vendor=0x8086, dev=0x9c60, revid=0x04
	domain=0, bus=0, slot=21, func=0
	class=08-01-02, hdrtype=0x00, mfdev=1
	cmdreg=0x0106, statreg=0x0010, cachelnsz=16 (dwords)
	lattimer=0x00 (0 ns), mingnt=0x00 (0 ns), maxlat=0x00 (0 ns)
	intpin=b, irq=255
	powerspec 3  supports D0 D3  current D0
pci0:0:21:0: reprobing on driver added
found->	vendor=0x8086, dev=0x9c61, revid=0x04
	domain=0, bus=0, slot=21, func=1
	class=0c-80-00, hdrtype=0x00, mfdev=1
	cmdreg=0x0506, statreg=0x0010, cachelnsz=16 (dwords)
	lattimer=0x00 (0 ns), mingnt=0x00 (0 ns), maxlat=0x00 (0 ns)
	intpin=c, irq=21
	powerspec 3  supports D0 D3  current D0
pci0:0:21:1: reprobing on driver added
ig4iic0: <Intel Lynx Point-LP I2C Controller-1> mem 0xe051a000-0xe051afff,0xe051b000-0xe051bfff irq 21 at device 21.1 on pci0
ig4iic0: Using MSI
ioapic0: routing intpin 21 (PCI IRQ 21) to lapic 2 vector 53
random: harvesting attach, 8 bytes (4 bits) from ig4iic0
found->	vendor=0x8086, dev=0x9c62, revid=0x04
	domain=0, bus=0, slot=21, func=2
	class=0c-80-00, hdrtype=0x00, mfdev=1
	cmdreg=0x0506, statreg=0x0010, cachelnsz=16 (dwords)
	lattimer=0x00 (0 ns), mingnt=0x00 (0 ns), maxlat=0x00 (0 ns)
	intpin=c, irq=21
	powerspec 3  supports D0 D3  current D0
pci0:0:21:2: reprobing on driver added
ig4iic1: <Intel Lynx Point-LP I2C Controller-2> mem 0xe051c000-0xe051cfff,0xe051d000-0xe051dfff irq 21 at device 21.2 on pci0
ig4iic1: Using MSI
random: harvesting attach, 8 bytes (4 bits) from ig4iic1
found->	vendor=0x8086, dev=0x9c22, revid=0x04
domain=0, bus=0, slot=31, func=3
class=0c-05-00, hdrtype=0x00, mfdev=0
cmdreg=0x0503, statreg=0x0280, cachelnsz=0 (dwords)
lattimer=0x00 (0 ns), mingnt=0x00 (0 ns), maxlat=0x00 (0 ns)
intpin=b, irq=18
pci0:0:31:3: reprobing on driver added
found->	vendor=0x8086, dev=0x9c24, revid=0x04
	domain=0, bus=0, slot=31, func=6
	class=11-80-00, hdrtype=0x00, mfdev=0
	cmdreg=0x0102, statreg=0x0010, cachelnsz=0 (dwords)
	lattimer=0x00 (0 ns), mingnt=0x00 (0 ns), maxlat=0x00 (0 ns)
	intpin=c, irq=255
	powerspec 3  supports D0 D3  current D0
	MSI supports 1 message
pci0:0:31:6: reprobing on driver added
pci1: driver added
root@c720:/tmp # kldload isl
root@c720:/tmp # kldload ichsmb
pci0: driver added
found->	vendor=0x8086, dev=0x9c60, revid=0x04
	domain=0, bus=0, slot=21, func=0
	class=08-01-02, hdrtype=0x00, mfdev=1
	cmdreg=0x0106, statreg=0x0010, cachelnsz=16 (dwords)
	lattimer=0x00 (0 ns), mingnt=0x00 (0 ns), maxlat=0x00 (0 ns)
	intpin=b, irq=255
	powerspec 3  supports D0 D3  current D0
pci0:0:21:0: reprobing on driver added
found->	vendor=0x8086, dev=0x9c22, revid=0x04
	domain=0, bus=0, slot=31, func=3
	class=0c-05-00, hdrtype=0x00, mfdev=0
	cmdreg=0x0503, statreg=0x0280, cachelnsz=0 (dwords)
	lattimer=0x00 (0 ns), mingnt=0x00 (0 ns), maxlat=0x00 (0 ns)
	intpin=b, irq=18
pci0:0:31:3: reprobing on driver added
ichsmb0: <Intel Lynx Point-LP SMBus controller> port 0x400-0x41f mem 0xe051fc00-0xe051fcff irq 18 at device 31.3 on pci0
ioapic0: routing intpin 18 (PCI IRQ 18) to lapic 0 vector 50
smbus0: <System Management Bus> on ichsmb0
random: harvesting attach, 8 bytes (4 bits) from smbus0
random: harvesting attach, 8 bytes (4 bits) from ichsmb0
found->	vendor=0x8086, dev=0x9c24, revid=0x04
	domain=0, bus=0, slot=31, func=6
	class=11-80-00, hdrtype=0x00, mfdev=0
	cmdreg=0x0102, statreg=0x0010, cachelnsz=0 (dwords)
	lattimer=0x00 (0 ns), mingnt=0x00 (0 ns), maxlat=0x00 (0 ns)
	intpin=c, irq=255
	powerspec 3  supports D0 D3  current D0
	MSI supports 1 message
pci0:0:31:6: reprobing on driver added
pci1: driver added
root@c720:/tmp # kldstat
Id Refs Address            Size     Name
 1   38 0xffffffff80200000 1fc6d38  kernel
 2    1 0xffffffff821c8000 3acc30   zfs.ko
 3    2 0xffffffff82575000 d528     opensolaris.ko
 4    1 0xffffffff82583000 23208    geom_eli.ko
 5    1 0xffffffff825a8000 b5d8     aesni.ko
 6    1 0xffffffff82621000 502b     ng_ubt.ko
 7    2 0xffffffff82627000 cab2     netgraph.ko
 8    1 0xffffffff82634000 a5ef     ng_hci.ko
 9    1 0xffffffff8263f000 107e     ng_bluetooth.ko
38    1 0xffffffff82641000 415d     ig4.ko
39    2 0xffffffff82646000 e84      smbus.ko
40    2 0xffffffff82647000 274b     iicbus.ko
41    1 0xffffffff8264a000 1507     isl.ko
42    1 0xffffffff8264c000 2c44     ichsmb.ko