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[79.240.58.42]) by smtp.gmail.com with ESMTPSA id a11sm1461173wrx.38.2021.05.21.03.09.51 for (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Fri, 21 May 2021 03:09:51 -0700 (PDT) From: "Max d'Wit" To: Subject: I2C-HID Quirk touchpad synopsys designware Date: Fri, 21 May 2021 12:09:49 +0200 Message-ID: <001c01d74e29$6f6cdcb0$4e469610$@com> MIME-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Mailer: Microsoft Office Outlook 12.0 Thread-Index: AddOKW7U+fsIC8uSTqGs5Eb+1rSYgw== Content-Language: de Precedence: bulk List-ID: X-Mailing-List: linux-input@vger.kernel.org I2C-HID Quirk touchpad synopsys designware I've got the hold on a Fujitsu Ultrabook U7411/U7x11 which has some = glitches/quirks with the touchpad that can be fixed with modprobe = i2c-hid. ( Ubuntu 20.04 / 5.8.0-53-generic ) In dmesg I can see this when I modprobe it: ## dmesg [ 34.531333] i2c_hid i2c-0X53 0X59 0X4E 0X50 0X31 0X46 0X31 0X35 = 0X00:00: supply vdd not found, using dummy regulator [ 34.531357] i2c_hid i2c-0X53 0X59 0X4E 0X50 0X31 0X46 0X31 0X35 = 0X00:00: supply vddl not found, using dummy regulator [ 34.707167] input: 0X53 0X59 0X4E 0X50 06CB:CE2B Mouse as = /devices/pci0000:00/0000:00:15.3/i2c_designware.2/i2c-3/i2c-0X53 0X59 = 0X4E 0X50 0X31 0X46 0X31 0X35 0X00:00/0018:06CB:CE2B.0004/input/input16 [ 34.707243] input: 0X53 0X59 0X4E 0X50 06CB:CE2B Touchpad as = /devices/pci0000:00/0000:00:15.3/i2c_designware.2/i2c-3/i2c-0X53 0X59 = 0X4E 0X50 0X31 0X46 0X31 0X35 0X00:00/0018:06CB:CE2B.0004/input/input17 [ 34.707305] hid-generic 0018:06CB:CE2B.0004: input,hidraw3: I2C HID = v1.00 Mouse [0X53 0X59 0X4E 0X50 06CB:CE2B] on i2c-0X53 0X59 0X4E 0X50 = 0X31 0X46 0X31 0X35 0X00:00 [ 34.800992] input: 0X53 0X59 0X4E 0X50 06CB:CE2B Mouse as = /devices/pci0000:00/0000:00:15.3/i2c_designware.2/i2c-3/i2c-0X53 0X59 = 0X4E 0X50 0X31 0X46 0X31 0X35 0X00:00/0018:06CB:CE2B.0004/input/input19 [ 34.801200] input: 0X53 0X59 0X4E 0X50 06CB:CE2B Touchpad as = /devices/pci0000:00/0000:00:15.3/i2c_designware.2/i2c-3/i2c-0X53 0X59 = 0X4E 0X50 0X31 0X46 0X31 0X35 0X00:00/0018:06CB:CE2B.0004/input/input20 [ 34.801250] hid-multitouch 0018:06CB:CE2B.0004: input,hidraw3: I2C = HID v1.00 Mouse [0X53 0X59 0X4E 0X50 06CB:CE2B] on i2c-0X53 0X59 0X4E = 0X50 0X31 0X46 0X31 0X35 0X00:00 After this it appears in xinput and works: ## xinput: Virtual core pointer id=3D2 [master pointer = (3)] Virtual core XTEST pointer id=3D4 [slave pointer = (2)] Logitech Optical USB Mouse id=3D9 [slave pointer = (2)] Generic USB Audio Consumer Control id=3D10 [slave pointer = (2)] 0X53 0X59 0X4E 0X50 06CB:CE2B Mouse id=3D18 [slave pointer = (2)] 0X53 0X59 0X4E 0X50 06CB:CE2B Touchpad id=3D19 [slave pointer = (2)] ## i2c-detect: i2c-2 i2c Synopsys DesignWare I2C adapter I2C = adapt ## kernel config designware + i2c hid CONFIG_I2C_DESIGNWARE_CORE=3Dy CONFIG_I2C_DESIGNWARE_PLATFORM=3Dy CONFIG_I2C_DESIGNWARE_BAYTRAIL=3Dy CONFIG_I2C_DESIGNWARE_PCI=3Dm CONFIG_SPI_DESIGNWARE=3Dm CONFIG_SND_DESIGNWARE_I2S=3Dm CONFIG_SND_DESIGNWARE_PCM=3Dy CONFIG_I2C_HID=3Dm I already found that this is the Microsoft HID over I2C protocol and = that this has some issues because of the implementation. Any clues / suggestions to make this work "out of the box" are = appreciated.