help with serial io touchpad

[Vikash Badal]

Greetings,

Can someone point me in the right direction to get the serial io touchpad (DELL 
LATTITUDE 5580 ) working on 12-CURRENT Revision: 327055

centos 7 dmesg:

[    5.805241] i2c_hid 7-002c: error in i2c_hid_init_report size:137 / ret_size:2
[    5.805389] input: DLL07A8:01 044E:120B as 
/devices/pci0000:00/0000:00:15.1/i2c_designware.1/i2c-7/7-002c/input/input14
[    5.805670] hid-generic 0018:044E:120B.0001: input,hidraw0: <UNKNOWN> HID 
v1.00 Mouse [DLL07A8:01 044E:120B] on


I've loaded the ig4 module, but i cannot get any get touchpad working.

there are no /dev/ii* entries

ive tried adding to loader.conf :
hw.psm.synaptics_support=1

root at newlaptop:/usr/src # pciconf -vl
hostb0 at pci0:0:0:0:	class=0x060000 card=0x07a81028 chip=0x59048086 rev=0x02 hdr=0x00
     vendor     = 'Intel Corporation'
     device     = 'Xeon E3-1200 v6/7th Gen Core Processor Host Bridge/DRAM 
Registers'
     class      = bridge
     subclass   = HOST-PCI
vgapci0 at pci0:0:2:0:	class=0x030000 card=0x07a81028 chip=0x59168086 rev=0x02 hdr=0x00
     vendor     = 'Intel Corporation'
     device     = 'HD Graphics 620'
     class      = display
     subclass   = VGA
none0 at pci0:0:4:0:	class=0x118000 card=0x07a81028 chip=0x19038086 rev=0x02 hdr=0x00
     vendor     = 'Intel Corporation'
     device     = 'Xeon E3-1200 v5/E3-1500 v5/6th Gen Core Processor Thermal 
Subsystem'
     class      = dasp
xhci0 at pci0:0:20:0:	class=0x0c0330 card=0x07a81028 chip=0x9d2f8086 rev=0x21 hdr=0x00
     vendor     = 'Intel Corporation'
     device     = 'Sunrise Point-LP USB 3.0 xHCI Controller'
     class      = serial bus
     subclass   = USB
none1 at pci0:0:20:2:	class=0x118000 card=0x07a81028 chip=0x9d318086 rev=0x21 hdr=0x00
     vendor     = 'Intel Corporation'
     device     = 'Sunrise Point-LP Thermal subsystem'
     class      = dasp
none2 at pci0:0:21:0:	class=0x118000 card=0x07a81028 chip=0x9d608086 rev=0x21 hdr=0x00
     vendor     = 'Intel Corporation'
     device     = 'Sunrise Point-LP Serial IO I2C Controller'
     class      = dasp
none3 at pci0:0:21:1:	class=0x118000 card=0x07a81028 chip=0x9d618086 rev=0x21 hdr=0x00
     vendor     = 'Intel Corporation'
     device     = 'Sunrise Point-LP Serial IO I2C Controller'
     class      = dasp
none4 at pci0:0:22:0:	class=0x078000 card=0x07a81028 chip=0x9d3a8086 rev=0x21 hdr=0x00
     vendor     = 'Intel Corporation'
     device     = 'Sunrise Point-LP CSME HECI'
     class      = simple comms
none5 at pci0:0:22:3:	class=0x070002 card=0x07a81028 chip=0x9d3d8086 rev=0x21 hdr=0x00
     vendor     = 'Intel Corporation'
     class      = simple comms
     subclass   = UART
ahci0 at pci0:0:23:0:	class=0x010601 card=0x07a81028 chip=0x9d038086 rev=0x21 hdr=0x00
     vendor     = 'Intel Corporation'
     device     = 'Sunrise Point-LP SATA Controller [AHCI mode]'
     class      = mass storage
     subclass   = SATA
pcib1 at pci0:0:28:0:	class=0x060400 card=0x07a81028 chip=0x9d108086 rev=0xf1 hdr=0x01
     vendor     = 'Intel Corporation'
     device     = 'Sunrise Point-LP PCI Express Root Port'
     class      = bridge
     subclass   = PCI-PCI
pcib2 at pci0:0:28:2:	class=0x060400 card=0x07a81028 chip=0x9d128086 rev=0xf1 hdr=0x01
     vendor     = 'Intel Corporation'
     device     = 'Sunrise Point-LP PCI Express Root Port'
     class      = bridge
     subclass   = PCI-PCI
isab0 at pci0:0:31:0:	class=0x060100 card=0x07a81028 chip=0x9d4e8086 rev=0x21 hdr=0x00
     vendor     = 'Intel Corporation'
     class      = bridge
     subclass   = PCI-ISA
none6 at pci0:0:31:2:	class=0x058000 card=0x07a81028 chip=0x9d218086 rev=0x21 hdr=0x00
     vendor     = 'Intel Corporation'
     device     = 'Sunrise Point-LP PMC'
     class      = memory
hdac0 at pci0:0:31:3:	class=0x040300 card=0x07a81028 chip=0x9d718086 rev=0x21 hdr=0x00
     vendor     = 'Intel Corporation'
     device     = 'Sunrise Point-LP HD Audio'
     class      = multimedia
     subclass   = HDA
none7 at pci0:0:31:4:	class=0x0c0500 card=0x07a81028 chip=0x9d238086 rev=0x21 hdr=0x00
     vendor     = 'Intel Corporation'
     device     = 'Sunrise Point-LP SMBus'
     class      = serial bus
     subclass   = SMBus
em0 at pci0:0:31:6:	class=0x020000 card=0x07a81028 chip=0x15d78086 rev=0x21 hdr=0x00
     vendor     = 'Intel Corporation'
     device     = 'Ethernet Connection (4) I219-LM'
     class      = network
     subclass   = ethernet
none8 at pci0:1:0:0:	class=0xff0000 card=0x07a81028 chip=0x525a10ec rev=0x01 hdr=0x00
     vendor     = 'Realtek Semiconductor Co., Ltd.'
     device     = 'RTS525A PCI Express Card Reader'
none9 at pci0:2:0:0:	class=0x028000 card=0x00508086 chip=0x24fd8086 rev=0x78 hdr=0x00
     vendor     = 'Intel Corporation'
     device     = 'Wireless 8265 / 8275'
     class      = network