On Tue, Nov 25, 2014 at 09:35:16PM +1000, Peter Hutterer wrote: > Pointer acceleration for relative input devices (mice, trackballs, etc.) > applies to the deltas of the device. Alas, those deltas have no physical > reference point - a delta of 10 may be caused by a large movement of a low-dpi > mouse or by a minute movement of a high-dpi mouse. > Which makes pointer acceleration a bit useless and high-dpi devices > essentially unusable. > > In an ideal world, we could read the DPI from the device directly and work > with that. In the world we actually live in, we need to compile this list > manually. This patch introduces the database, with the usual match formats and > a single property to be set on a device: MOUSE_DPI > > That is either a single value for most mice, or a list of values for mice that > can change resolution at runtime. The exact format is detailed in the hwdb > file. > > Note that we're explicitly overshooting the requirements we have for libinput > atm. Frequency could be detected in software and we don't actually use the > list of multiple resolutions (because we can't detect when they change > anyway). However, we might as well collect those values from the get-go, > adding/modifying what will eventually amount to hundreds of entries is a > bit cumbersome. > > Note: we rely on the input_id builtin to tag us as mouse first, ordering of > the rules is important. > --- > Makefile.am | 4 ++- > rules/70-mouse.hwdb | 92 > ++++++++++++++++++++++++++++++++++++++++++++++++++++ > rules/70-mouse.rules | 15 +++++++++ > 3 files changed, 110 insertions(+), 1 deletion(-) > create mode 100644 rules/70-mouse.hwdb > create mode 100644 rules/70-mouse.rules > > diff --git a/Makefile.am b/Makefile.am > index 3f9f3fa..d2b0d02 100644 > --- a/Makefile.am > +++ b/Makefile.am > @@ -3285,6 +3285,7 @@ dist_udevrules_DATA += \ > rules/50-udev-default.rules \ > rules/60-drm.rules \ > rules/60-keyboard.rules \ > + rules/70-mouse.rules \ > rules/60-persistent-storage-tape.rules \ > rules/60-persistent-serial.rules \ > rules/60-persistent-input.rules \ > @@ -3311,7 +3312,8 @@ dist_udevhwdb_DATA = \ > hwdb/20-acpi-vendor.hwdb \ > hwdb/20-OUI.hwdb \ > hwdb/20-net-ifname.hwdb \ > - hwdb/60-keyboard.hwdb > + hwdb/60-keyboard.hwdb \ > + hwdb/70-mouse.hwdb Wouldn't 60-mouse be more appropriate? It is very similar to 60-keyboard.
> udevconfdir = $(sysconfdir)/udev > dist_udevconf_DATA = \ > diff --git a/rules/70-mouse.hwdb b/rules/70-mouse.hwdb > new file mode 100644 > index 0000000..75e8755 > --- /dev/null > +++ b/rules/70-mouse.hwdb > @@ -0,0 +1,92 @@ > +# This file is part of systemd. > +# > +# Database for the DPI setting of mice, trackballs, other pointer devices > that > +# cannot be queried directly. > +# > +# The lookup keys are composed in: > +# 60-mouse.rules Typo (if you elect not to use change to 60 ;)) Otherwise looks OK. Zbyszek > +# Note: The format of the "mouse:" prefix match key is a > +# contract between the rules file and the hardware data, it might > +# change in later revisions to support more or better matches, it > +# is not necessarily expected to be a stable ABI. > +# > +# Match string format: > +# mouse:<subsystem>:v<vid>p<pid>:name:<name>: > +# > +# Supported subsystems: usb, bluetooth > +# vid/pid as 4-digit hex lowercase vendor/product > +# > +# if vid/pid is unavailable, use > +# mouse:*:name:<name>: > +# if name is unavailable, use > +# mouse:<subsystem>:v<vid>p<pid>:* > +# > +# For example, the following 5 matches all match the same mouse: > +# mouse:usb:v17efp6019:name:Lenovo Optical USB Mouse: > +# mouse:usb:*:name:Lenovo Optical USB Mouse: > +# mouse:usb:v17efp6019:* > +# mouse:*:name:Lenovo Optical USB Mouse: > +# > +# DPI settings are specified as > +# MOUSE_DPI=<dpi>[@<frequency>] > +# > +# Where <dpi> is the resolution in dots per inch, and <frequency> the > +# optional sampling frequency in Hz. > +# > +# The value of MOUSE_DPI is: > +# - a single integer for single-resolution mice, e.g. > +# MOUSE_DPI=800 > +# or, if the frequency is known: > +# MOUSE_DPI=800@120 > +# - a space-separated list of resolutions for multi-resolution mice. > +# The default resolution must be prefixed by an asterisk, the resultions > +# in the database must be as shipped by the manufacturer. e.g. > +# MOUSE_DPI=400 *800 2000 > +# > +# The order of resolutions is as configured by the HW manufacturer or in > +# ascending order, whichever appropriate. > +# > +# The frequency must be given to either none or all resolutions. If the > +# device supports multiple frequencies, the order of items is > +# MOUSE_DPI=r1@f1 r2@f1 r3@f1 r1@f2 r2@f2 r3@f2 > +# > +# If the default manufacturer-set resolution is unclear, a resolution of > +# 800 or 1000 should be set as default, if available. If neither is > +# available, choose the "middle" resolution value of those available. > +# > +# The list may contain a single item which must be marked with an > +# asterisk. > +# > +# Local changes to the a non-default resolution of the mouse (e.g. through > +# third-party software) must not be entered into this file, use a local > +# hwdb instead. > +# > +# To add local entries, create a new file > +# /etc/udev/hwdb.d/60-mouse.hwdb > +# and add your rules there. To load the new rules execute (as root): > +# udevadm hwdb --update > +# udevadm trigger /dev/input/eventXX > +# where /dev/input/eventXX is the mouse in question. If in > +# doubt, simply use /dev/input/event* to reload all input rules. > +# > +# If your changes are generally applicable, open a bug report on > +# http://bugs.freedesktop.org/enter_bug.cgi?product=systemd > +# and include your new rules, a description of the device, and the > +# output of > +# udevadm info /dev/input/eventXX > +# (or /dev/input/event*). > + > +########################################## > +# Lenovo > +########################################## > + > +mouse:usb:v17efp6019:name:Lenovo Optical USB Mouse: > + MOUSE_DPI=1000@125 > + > +########################################## > +# Logitech > +########################################## > + > +mouse:usb:v046dpc24e:name:Logitech G500s Laser Gaming Mouse: > + MOUSE_DPI=400@500 *800@500 2000@500 > diff --git a/rules/70-mouse.rules b/rules/70-mouse.rules > new file mode 100644 > index 0000000..0e359e8 > --- /dev/null > +++ b/rules/70-mouse.rules > @@ -0,0 +1,15 @@ > +# do not edit this file, it will be overwritten on update > + > +ACTION=="remove", GOTO="mouse_end" > +KERNEL!="event*", GOTO="mouse_end" > +ENV{ID_INPUT_MOUSE}=="", GOTO="mouse_end" > + > +# mouse:<subsystem>:v<vid>p<pid>:name:<name>:* > +KERNELS=="input*", ENV{ID_BUS}=="usb", \ > + IMPORT{builtin}="hwdb > 'mouse:$env{ID_BUS}:v$attr{id/vendor}p$attr{id/product}:name:$attr{name}:'", \ > + GOTO="mouse_end" > +KERNELS=="input*", ENV{ID_BUS}=="bluetooth", \ > + IMPORT{builtin}="hwdb > 'mouse:$env{ID_BUS}:v$attr{id/vendor}p$attr{id/product}:name:$attr{name}:'", \ > + GOTO="mouse_end" > + > +LABEL="mouse_end" > -- > 2.1.0 > > _______________________________________________ > systemd-devel mailing list > systemd-devel@lists.freedesktop.org > http://lists.freedesktop.org/mailman/listinfo/systemd-devel _______________________________________________ systemd-devel mailing list systemd-devel@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/systemd-devel
