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path: root/drivers/hid/hid-speedlink.c
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2011-06-08HID: Add driver to fix Speedlink VAD Cezanne supportStefan Kriwanek
Speedlink VAD Cezanne have a hardware bug that makes the cursor "jump" from one place to another every now and then. The issue are relative motion events erroneously reported by the device, each having a distance value of +256. This 256 can in fact never occur due to real motion, therefore those events can safely be ignored. The driver also drops useless EV_REL events with a value of 0, that the device sends every time it sends an "real" EV_REL or EV_KEY event. Signed-off-by: Stefan Kriwanek <mail@stefankriwanek.de> Signed-off-by: Jiri Kosina <jkosina@suse.cz>