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fix for multitouch and allow auto detection of touchscreen in udev

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This commit is contained in:
Jake Day 2017-09-01 14:31:53 -04:00
parent ef2304c06e
commit b3c8ba44cc
1 changed files with 3 additions and 5 deletions
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8
kernel/drivers/hid/hid-multitouch.c
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@ -131,6 +131,7 @@ struct mt_device {
static void mt_post_parse_default_settings(struct mt_device *td);
static void mt_post_parse(struct mt_device *td);
static int contact_count_seen;
/* classes of device behavior */
#define MT_CLS_DEFAULT 0x0001
@ -559,9 +560,10 @@ static int mt_touch_input_mapping(struct hid_device *hdev, struct hid_input *hi,
usage->usage_index >= field->report_count)
return 1;
if (td->cc_index < 0) {
if (contact_count_seen != 1) {
td->cc_index = field->index;
td->cc_value_index = usage->usage_index;
contact_count_seen++;
}
return 1;
@ -1047,10 +1049,6 @@ static int mt_input_configured(struct hid_device *hdev, struct hid_input *hi)
suffix = "Pen";
/* force BTN_STYLUS to allow tablet matching in udev */
__set_bit(BTN_STYLUS, hi->input->keybit);
} else if (hi->report->field[0]->logical == HID_DG_TOUCHSCREEN) {
suffix = "SingleTouch";
/* force BTN_STYLUS to allow tablet matching in udev */
__set_bit(BTN_STYLUS, hi->input->keybit);
} else {
switch (field->application) {
case HID_GD_KEYBOARD: