From: Egbert Eich <e...@suse.com>
A protocol 5 tool will send an ABS event code=ABS_MISC with
value 0. 0 is however not a valid device ID. Don't try to
derive a type from it.
Signed-off-by: Egbert Eich <e...@suse.com>
---
src/wcmUSB.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/src/wcmUSB.c b/src/wcmUSB.c
index 14fff1b..3d6cdc0 100644
--- a/src/wcmUSB.c
+++ b/src/wcmUSB.c
@@ -1066,6 +1066,9 @@ static int usbIdToType(int id)
{
int type = STYLUS_ID;
+ if (!id)
+ return 0;
+
/* The existing tool ids have the following patten: all pucks, except
* one, have the third byte set to zero; all erasers have the fourth
* bit set. The rest are styli.
--
1.8.4.5
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