I just got a Dell E6230 with the same E7 report: 73 03 0a As noted above using the qemu serio logging doesn't work. The driver only enables multitouch if it sees the right name for the device in the DSDT. The following patch (against the seabios in qemu-0.14.1) enables the windows 7 driver (7.1211.101.114 from http://www.dell.com/support/drivers/us/en/04/DriverDetails/DriverFileFormats/Product/latitude-e6230?DriverId=CKNFN&FileId=2988050063&urlProductCode=False ) to bind successfully and alows one to get data from the serio logging patch Are there any standard tools for reverse engineering the protocol - I saw mention of an alps-reg-dump but was unable to find it? thanks, James.
--- ./qemu-0.14.1/roms/seabios/src/acpi-dsdt.dsl 2011-05-06 20:02:01.000000000 +0100 +++ ./qemu-0.14.1.jmm/roms/seabios/src/acpi-dsdt.dsl 2012-08-14 11:09:22.000000000 +0100 @@ -253,7 +253,7 @@ } /* Keyboard seems to be important for WinXP install */ - Device (KBD) + Device (PS2K) { Name (_HID, EisaId ("PNP0303")) Method (_STA, 0, NotSerialized) @@ -261,10 +261,8 @@ Return (0x0f) } - Method (_CRS, 0, NotSerialized) + Name (_CRS, ResourceTemplate () { - Name (TMP, ResourceTemplate () - { IO (Decode16, 0x0060, // Address Range Minimum 0x0060, // Address Range Maximum @@ -277,30 +275,52 @@ 0x01, // Address Alignment 0x01, // Address Length ) + IRQ (Edge, ActiveHigh, Exclusive, ) + {1} + + }) + + + + + Name (_PRS, ResourceTemplate () + { + StartDependentFn (0x00, 0x00) + { + FixedIO ( + 0x0060, // Address + 0x01, // Length + ) + FixedIO ( + 0x0064, // Address + 0x01, // Length + ) IRQNoFlags () {1} - }) - Return (TMP) } - } + EndDependentFn () + }) + } /* PS/2 mouse */ - Device (MOU) + Device (PS2M) { - Name (_HID, EisaId ("PNP0F13")) - Method (_STA, 0, NotSerialized) - { - Return (0x0f) - } - - Method (_CRS, 0, NotSerialized) + Name (_CID, EisaId ("PNP0F13")) + Name (_HID, EisaId ("DLL0532")) + Name (_CRS, ResourceTemplate () + { + IRQ (Edge, ActiveHigh, Exclusive, ) + {12} + }) + Name (_PRS, ResourceTemplate () + { + StartDependentFn (0x00, 0x00) { - Name (TMP, ResourceTemplate () - { - IRQNoFlags () {12} - }) - Return (TMP) + IRQNoFlags () + {12} } + EndDependentFn () + }) } /* PS/2 floppy controller */