| commit | 3e5a7e1f1378d9845c8b2a66d729dcd97966e21d | |
| author | Jason Gerecke <jason.gerecke@wacom.com> | |
| Tue, 7 May 2019 18:53:22 +0000 (7 11:53 -0700) | ||
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | |
| Wed, 19 Jun 2019 06:20:53 +0000 (19 08:20 +0200) | ||
| tree | 6fe1b57f2c1b29ffe2cdca2fa53782baef00556d | treesnapshot (tar.gz zip) |
| parent | f0c83ba15ff90b8d42d9f48c6c26ceef7bde037a | commitdiff |
HID: wacom: Sync INTUOSP2_BT touch state after each frame if necessary
commit 69dbdfffef20c715df9f381b2cee4e9e0a4efd93 upstream.
The Bluetooth interface of the 2nd-gen Intuos Pro batches together four
independent "frames" of finger data into a single report. Each frame
is essentially equivalent to a single USB report, with the up-to-10
fingers worth of information being spread across two frames. At the
moment the driver only calls `input_sync` after processing all four
frames have been processed, which can result in the driver sending
multiple updates for a single slot within the same SYN_REPORT. This
can confuse userspace, so modify the driver to sync more often if
necessary (i.e., after reporting the state of all fingers).
Fixes: 4922cd26f03c ("HID: wacom: Support 2nd-gen Intuos Pro's Bluetooth classic interface")
Cc: <stable@vger.kernel.org> # 4.11+
Signed-off-by: Jason Gerecke <jason.gerecke@wacom.com>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit 69dbdfffef20c715df9f381b2cee4e9e0a4efd93 upstream.
The Bluetooth interface of the 2nd-gen Intuos Pro batches together four
independent "frames" of finger data into a single report. Each frame
is essentially equivalent to a single USB report, with the up-to-10
fingers worth of information being spread across two frames. At the
moment the driver only calls `input_sync` after processing all four
frames have been processed, which can result in the driver sending
multiple updates for a single slot within the same SYN_REPORT. This
can confuse userspace, so modify the driver to sync more often if
necessary (i.e., after reporting the state of all fingers).
Fixes: 4922cd26f03c ("HID: wacom: Support 2nd-gen Intuos Pro's Bluetooth classic interface")
Cc: <stable@vger.kernel.org> # 4.11+
Signed-off-by: Jason Gerecke <jason.gerecke@wacom.com>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| drivers/hid/wacom_wac.c | diffblobblamehistory |