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| author | Jason Gerecke <killertofu@gmail.com> | 2014-12-05 13:37:32 -0800 |
|---|---|---|
| committer | Jiri Kosina <jkosina@suse.cz> | 2014-12-10 10:50:48 +0100 |
| commit | b58ba1ba1af9cfbad6f3af4c4fc3575d9aeae542 (patch) | |
| tree | e81f891a3b28e7dfb29675c58bf2e0de844137b2 /drivers/hid/wacom_sys.c | |
| parent | ecd618dc25582923add5d7abfbb3b9aeaf51e2ac (diff) | |
| download | linux-b58ba1ba1af9cfbad6f3af4c4fc3575d9aeae542.tar.gz linux-b58ba1ba1af9cfbad6f3af4c4fc3575d9aeae542.tar.bz2 linux-b58ba1ba1af9cfbad6f3af4c4fc3575d9aeae542.zip | |
HID: wacom: Initialize MT slots for generic devices at post_parse_hid
If a HID descriptor places HID_DG_CONTACTID before HID_DG_X and HID_DG_Y then
the ABS_X and ABS_Y will not be automatically initialized by the call to
input_mt_init_slots. To ensure that this is not a problem, we relocate that
call to occur after HID parsing has been completed and we've initalized all the
multitouch axes.
Signed-off-by: Jason Gerecke <killertofu@gmail.com>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Diffstat (limited to 'drivers/hid/wacom_sys.c')
| -rw-r--r-- | drivers/hid/wacom_sys.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/drivers/hid/wacom_sys.c b/drivers/hid/wacom_sys.c index eb5531657e41..872aa0be2e70 100644 --- a/drivers/hid/wacom_sys.c +++ b/drivers/hid/wacom_sys.c @@ -13,6 +13,7 @@ #include "wacom_wac.h" #include "wacom.h" +#include <linux/input/mt.h> #define WAC_MSG_RETRIES 5 @@ -236,6 +237,21 @@ static void wacom_usage_mapping(struct hid_device *hdev, wacom_wac_usage_mapping(hdev, field, usage); } +static void wacom_post_parse_hid(struct hid_device *hdev, + struct wacom_features *features) +{ + struct wacom *wacom = hid_get_drvdata(hdev); + struct wacom_wac *wacom_wac = &wacom->wacom_wac; + + if (features->type == HID_GENERIC) { + /* Any last-minute generic device setup */ + if (features->touch_max > 1) { + input_mt_init_slots(wacom_wac->input, wacom_wac->features.touch_max, + INPUT_MT_DIRECT); + } + } +} + static void wacom_parse_hid(struct hid_device *hdev, struct wacom_features *features) { @@ -270,6 +286,8 @@ static void wacom_parse_hid(struct hid_device *hdev, wacom_usage_mapping(hdev, hreport->field[i], hreport->field[i]->usage + j); } + + wacom_post_parse_hid(hdev, features); } static int wacom_hid_set_device_mode(struct hid_device *hdev) |