freebsd 触摸板没法使用， ubuntu 可以用

笔记本是小米 air 12.5 寸，ubuntu20.04.2 可以正常驱动和使用触摸板，但是 freebsd11 安装 xfce 后没法使用

下面是 ubuntu 使用 lshw 输出的笔记本信息

ubuntu
    description: Notebook
    product: TM1612 (LC15A Series)
    vendor: Timi
    version: Chassis Version
    serial: 13135/00007418
    width: 64 bits
    capabilities: smbios-2.8 dmi-2.8 smp vsyscall32
    configuration: administrator_password=disabled boot=normal chassis=notebook family=Timibook sku=LC15A Series uuid=4A7D2F32-DAAE-6E4F-8D63-CA275A8162A7

下面是/var/log/dmesg的输出，找到了硬件

[    1.799671] kernel: input: SYNA3105:00 06CB:7EA5 Mouse as /devices/pci0000:00/0000:00:15.0/i2c_designware.0/i2c-1/i2c-SYNA3105:00/0018:06CB:7EA5.0001/input/input5
[    1.800007] kernel: hid-generic 0018:06CB:7EA5.0001: input,hidraw0: I2C HID v1.00 Mouse [SYNA3105:00 06CB:7EA5] on i2c-SYNA3105:00
[    2.055787] kernel: input: Synaptics TM3242-001 as /devices/pci0000:00/0000:00:15.0/i2c_designware.0/i2c-1/i2c-SYNA3105:00/0018:06CB:7EA5.0001/input/input7
[    2.056034] kernel: hid-rmi 0018:06CB:7EA5.0001: input,hidraw0: I2C HID v1.00 Mouse [SYNA3105:00 06CB:7EA5] on i2c-SYNA3105:00

下面是的 lspci 输出，驱动使用 intel-lpss

00:15.0 Signal processing controller: Intel Corporation Sunrise Point-LP Serial IO I2C Controller #0 (rev 21)
	Subsystem: Xiaomi Sunrise Point-LP Serial IO I2C Controller
	Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0, Cache Line Size: 64 bytes
	Interrupt: pin A routed to IRQ 16
	Region 0: Memory at b1132000 (64-bit, non-prefetchable) [size=4K]
	Capabilities: [80] Power Management version 3
		Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
		Status: D3 NoSoftRst+ PME-Enable- DSel=0 DScale=0 PME-
	Capabilities: [90] Vendor Specific Information: Len=14 <?>
	Kernel driver in use: intel-lpss
	Kernel modules: intel_lpss_pci

lshw 的输出都没有问题

        *-generic:1
             description: Signal processing controller
             product: Sunrise Point-LP Serial IO I2C Controller #0
             vendor: Intel Corporation
             physical id: 15
             bus info: pci@0000:00:15.0
             version: 21
             width: 64 bits
             clock: 33MHz
             capabilities: pm bus_master cap_list
             configuration: driver=intel-lpss latency=0
             resources: irq:16 memory:b1132000-b1132fff

但是 freebsd 有问题，下面是 freebsd11 的 /var/run/dmesg.boot 输出，找到了硬件，但是是 unknown card

ig4iic0: <Intel Sunrise Point-LP I2C Controller-0> mem 0xb1132000-0xb1132fff irq 16 at device 21.0 on pci0
ig4iic0: Using MSI
iicbus0: <Philips I2C bus (ACPI-hinted)> on ig4iic0
iicbus0: <unknown card> at addr 0x2c

pciconf 也找到了硬件，但是触摸板就是没法用

ig4iic0@pci0:0:21:0:	class=0x118000 card=0x15011d72 chip=0x9d608086 rev=0x21 hdr=0x00
    vendor     = 'Intel Corporation'
    device     = 'Sunrise Point-LP Serial IO I2C Controller'
    class      = dasp