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-rw-r--r--hwdb/70-pointingstick.hwdb5
1 files changed, 4 insertions, 1 deletions
diff --git a/hwdb/70-pointingstick.hwdb b/hwdb/70-pointingstick.hwdb
index 117f99455c..fa23563192 100644
--- a/hwdb/70-pointingstick.hwdb
+++ b/hwdb/70-pointingstick.hwdb
@@ -18,11 +18,14 @@
# ZZZZ is the bus-id (see /usr/include/linux/input.h BUS_*), YYYY, XXXX and
# WWW are the 4-digit hex uppercase vendor, product and version ID and VVVV
# is an arbitrary length input-modalias describing the device capabilities.
+# The vendor, product and version ID for a device node "eventX" is listed
+# in /sys/class/input/eventX/device/id.
#
# - Input driver device name and DMI data match:
# evdev:name:<input device name>:dmi:bvn*:bvr*:bd*:svn<vendor>:pn*
# <input device name> is the name device specified by the driver,
-# <vendor> is the firmware-provided string from the kernel DMI modalias.
+# <vendor> is the firmware-provided string from the kernel DMI modalias,
+# see /sys/class/dmi/id/modalias
#
# To add local entries, create a new file
# /etc/udev/hwdb.d/71-pointingstick-local.hwdb