I followed the instructions at http://who-t.blogspot.de/2014/12/building-a-dpi-database-for-mice.html to measure the DPI of another USB mouse. The result is to be found below: # Logitech USB Laser Mouse rebranded as "terra Laser" mouse:usb:v046dpc065:name:Logitech USB Laser Mouse: MOUSE_DPI=XXX@125 $ udevadm info /dev/input/event18 P: /devices/pci0000:00/0000:00:13.0/usb7/7-2/7-2:1.0/0003:046D:C065.0004/input/input18/event18 N: input/event18 S: input/by-id/usb-Logitech_USB_Laser_Mouse-event-mouse S: input/by-path/pci-0000:00:13.0-usb-0:2:1.0-event-mouse E: DEVLINKS=/dev/input/by-id/usb-Logitech_USB_Laser_Mouse-event-mouse /dev/input/by-path/pci-0000:00:13.0-usb-0:2:1.0-event-mouse E: DEVNAME=/dev/input/event18 E: DEVPATH=/devices/pci0000:00/0000:00:13.0/usb7/7-2/7-2:1.0/0003:046D:C065.0004/input/input18/event18 E: ID_BUS=usb E: ID_INPUT=1 E: ID_INPUT_MOUSE=1 E: ID_MODEL=USB_Laser_Mouse E: ID_MODEL_ENC=USB\x20Laser\x20Mouse E: ID_MODEL_ID=c065 E: ID_PATH=pci-0000:00:13.0-usb-0:2:1.0 E: ID_PATH_TAG=pci-0000_00_13_0-usb-0_2_1_0 E: ID_REVISION=3401 E: ID_SERIAL=Logitech_USB_Laser_Mouse E: ID_TYPE=hid E: ID_USB_DRIVER=usbhid E: ID_USB_INTERFACES=:030102: E: ID_USB_INTERFACE_NUM=00 E: ID_VENDOR=Logitech E: ID_VENDOR_ENC=Logitech E: ID_VENDOR_ID=046d E: MAJOR=13 E: MINOR=82 E: MOUSE_DPI=1000@125 E: SUBSYSTEM=input E: USEC_INITIALIZED=96810111
To be more precise: The model is "M-U0011-O"
Seems to be missing actual resolution :)
I'm sorry, I copied the line from the output instead of the hwdb file ... :/ # Logitech USB Laser Mouse rebranded as "terra Laser" mouse:usb:v046dpc065:name:Logitech USB Laser Mouse: MOUSE_DPI=1000@125
Added in http://cgit.freedesktop.org/systemd/systemd/commit/?id=bf66fe2682.
Use of freedesktop.org services, including Bugzilla, is subject to our Code of Conduct. How we collect and use information is described in our Privacy Policy.