hw-probe device detection goodix touchscreen

octocom

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Hi All,

I'm looking for some guidance please. I purchased a generic tablet with intel cpu and Windows 11 called a Tactus Mode GeoPad 220. I can run Linux no problem at all, but fails to detect a goodix GXTP7386 touchscreen on any distro or kernal as far as I can tell. I have tried to use HW-PROBE to see more info about how the device is detected under linux, but it fails detection. see Probehttps://linux-hardware.org/?probe=a7e3223fa6

can you advise if I can do anything else with this software for a low level detection or something? The only info I have about the device is from windows device manager under Human Interface Devices touch screen HID\VEN_GXTP&DEV_7386&cOL1 HID/VID_27C6&UP:000D_U:0004. To me the first part of the device id matches which is known under linux, but does not match the known 2nd part for the goodix 7386 device.

thanks

Luke
 


ok figured out its a ic2 device i2c-gxtp7386:00 and dumped the bios DSDT table, but still trying to figure out how to use the information for this pin?

Device (TCS4)
{
Name (_ADR, Zero) // _ADR: Address
Name (_HID, "GXTP7386") // _HID: Hardware ID
Name (_CID, "PNP0C50" /* HID Protocol Device (I2C bus) */) // _CID: Compatible ID
Name (_S0W, Zero) // _S0W: S0 Device Wake State
Method (_PS3, 0, Serialized) // _PS3: Power State 3
{
}

Method (_PS0, 0, Serialized) // _PS0: Power State 0
{
}

Method (_STA, 0, NotSerialized) // _STA: Status
{
If ((TCPL == 0x04))
{
Return (0x0F)
}

Return (Zero)
}

Method (_CRS, 0, NotSerialized) // _CRS: Current Resource Settings
{
Name (WBUF, ResourceTemplate ()
{
I2cSerialBusV2 (0x005D, ControllerInitiated, 0x00061A80,
AddressingMode7Bit, "\\_SB.PCI0.I2C4",
0x00, ResourceConsumer, , Exclusive,
)
GpioInt (Edge, ActiveLow, Exclusive, PullDefault, 0x0000,
"\\_SB.GPO1", 0x00, ResourceConsumer, ,
)
{ // Pin list
0x001A
}
GpioIo (Shared, PullDefault, 0x0000, 0x0000, IoRestrictionOutputOnly,
"\\_SB.GPO0", 0x00, ResourceConsumer, ,
)
{ // Pin list
0x003A
}
})
Return (WBUF) /* \_SB_.PCI0.I2C4.TCS4._CRS.WBUF */
}

Method (_DSM, 4, Serialized) // _DSM: Device-Specific Method
{
If ((Arg0 == ToUUID ("3cdff6f7-4267-4555-ad05-b30a3d8938de") /* HID I2C Device */))
{
Switch (ToInteger (Arg2))
{
Case (Zero)
{
Switch (ToInteger (Arg1))
{
Case (One)
{
Return (Buffer (One)
{
0x03 // .
})
}
Default
{
Return (Buffer (One)
{
0x00 // .
})
}

}
}
Case (One)
{
Return (One)
}
Default
{
Return (Zero)
}

}
}
Else
{
Return (Buffer (One)
{
0x00 // .
})
}
}
}
}
 
Hi Luke,
Just wondered if you had managed to get the Geopad 220 working properly yet? I am considering getting one to run UbuntuMate.
Thanks
J.D.
 

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