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| author |   Aaron Armstrong Skomra <skomra@gmail.com> | 2019-06-12 14:19:29 -0700 |
|---|---|---|
| committer |   Jiri Kosina <jkosina@suse.cz> | 2019-06-13 16:48:49 +0200 |
| commit | 184eccd40389df29abefab88092c4ff33191fd0c (patch) | |
| tree | fe9a41009e28c5f34f1d7864a96b0ff76c3132bf /drivers/hid/wacom_wac.c | |
| parent | HID: wacom: Add 2nd gen Intuos Pro Small support (diff) | |
| download | wireguard-linux-184eccd40389df29abefab88092c4ff33191fd0c.tar.xz wireguard-linux-184eccd40389df29abefab88092c4ff33191fd0c.zip | |
HID: wacom: generic: read HID_DG_CONTACTMAX from any feature report
In the generic code path, HID_DG_CONTACTMAX was previously
only read from the second byte of report 0x23.
Another report (0x82) has the HID_DG_CONTACTMAX in the
higher nibble of the third byte. We should support reading the
value of HID_DG_CONTACTMAX no matter what report we are reading
or which position that value is in.
To do this we submit the feature report as a event report
using hid_report_raw_event(). Our modified finger event path
records the value of HID_DG_CONTACTMAX when it sees that usage.
Fixes: 8ffffd5212846 ("HID: wacom: fix timeout on probe for some wacoms")
Signed-off-by: Aaron Armstrong Skomra <aaron.skomra@wacom.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Diffstat (limited to 'drivers/hid/wacom_wac.c')
| -rw-r--r-- | drivers/hid/wacom_wac.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/hid/wacom_wac.c b/drivers/hid/wacom_wac.c index b764e9d72b5b..678f504239a0 100644 --- a/drivers/hid/wacom_wac.c +++ b/drivers/hid/wacom_wac.c @@ -2492,6 +2492,7 @@ static void wacom_wac_finger_event(struct hid_device *hdev, struct wacom *wacom = hid_get_drvdata(hdev); struct wacom_wac *wacom_wac = &wacom->wacom_wac; unsigned equivalent_usage = wacom_equivalent_usage(usage->hid); + struct wacom_features *features = &wacom->wacom_wac.features; switch (equivalent_usage) { case HID_GD_X: @@ -2512,6 +2513,9 @@ static void wacom_wac_finger_event(struct hid_device *hdev, case HID_DG_TIPSWITCH: wacom_wac->hid_data.tipswitch = value; break; + case HID_DG_CONTACTMAX: + features->touch_max = value; + return; } |