The solution is here, but it need ubuntu kernel compilation : too difficult for me. So if someone can do that, it would be great
cordialement, http://www.spinics.net/lists/linux-input/msg10577.html This fixes a regression introduced in 3b57ca0f80c5c8994b5b1e3d3f904cfe727951f2. The data[6] byte contains either 1 or -1 depending on the whether the mouse wheel on older wacom tablets is moved down (1) or up (-1). The patch introduced in the above commit changed the cast from (signed char) to (signed). When cast as a signed integer and negated, the value of -1 (stored in the byte as 0xff) became -255 rather than 1. This patch reverts the cast to a (signed char) and also removes an unnecessary (signed) cast, as all the values operated on are bitmasked. Signed-off-by: Mike Auty <ike...@xxxxxxxxxx> Reviewed-by: Ping Cheng <pi...@xxxxxxxxx> --- drivers/input/tablet/wacom_wac.c | 4 ++-- 1 files changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/input/tablet/wacom_wac.c b/drivers/input/tablet/wacom_wac.c index 415f630..d1a883d 100644 --- a/drivers/input/tablet/wacom_wac.c +++ b/drivers/input/tablet/wacom_wac.c @@ -210,10 +210,10 @@ static int wacom_graphire_irq(struct wacom_wac *wacom) if (features->type == WACOM_G4 || features->type == WACOM_MO) { input_report_abs(input, ABS_DISTANCE, data[6] & 0x3f); - rw = (signed)(data[7] & 0x04) - (data[7] & 0x03); + rw = (data[7] & 0x04) - (data[7] & 0x03); } else { input_report_abs(input, ABS_DISTANCE, data[7] & 0x3f); - rw = -(signed)data[6]; + rw = -(signed char)data[6]; } input_report_rel(input, REL_WHEEL, rw); } -- 1.7.2.2 -- -- Wacom Tablet mouse-wheel always scrolls down https://bugs.launchpad.net/bugs/656067 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
