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path: root/drivers/hid/hid-multitouch.c
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Diffstat (limited to 'drivers/hid/hid-multitouch.c')
-rw-r--r--drivers/hid/hid-multitouch.c13
1 files changed, 12 insertions, 1 deletions
diff --git a/drivers/hid/hid-multitouch.c b/drivers/hid/hid-multitouch.c
index 61cc4cbe0f3e..9a3891e00cdd 100644
--- a/drivers/hid/hid-multitouch.c
+++ b/drivers/hid/hid-multitouch.c
@@ -83,6 +83,7 @@ struct mt_device {
unsigned last_field_index; /* last field index of the report */
unsigned last_slot_field; /* the last field of a slot */
__s8 inputmode; /* InputMode HID feature, -1 if non-existent */
+ __s8 inputmode_index; /* InputMode HID feature index in the report */
__s8 maxcontact_report_id; /* Maximum Contact Number HID feature,
-1 if non-existent */
__u8 num_received; /* how many contacts we received */
@@ -260,10 +261,20 @@ static void mt_feature_mapping(struct hid_device *hdev,
struct hid_field *field, struct hid_usage *usage)
{
struct mt_device *td = hid_get_drvdata(hdev);
+ int i;
switch (usage->hid) {
case HID_DG_INPUTMODE:
td->inputmode = field->report->id;
+ td->inputmode_index = 0; /* has to be updated below */
+
+ for (i=0; i < field->maxusage; i++) {
+ if (field->usage[i].hid == usage->hid) {
+ td->inputmode_index = i;
+ break;
+ }
+ }
+
break;
case HID_DG_CONTACTMAX:
td->maxcontact_report_id = field->report->id;
@@ -618,7 +629,7 @@ static void mt_set_input_mode(struct hid_device *hdev)
re = &(hdev->report_enum[HID_FEATURE_REPORT]);
r = re->report_id_hash[td->inputmode];
if (r) {
- r->field[0]->value[0] = 0x02;
+ r->field[0]->value[td->inputmode_index] = 0x02;
usbhid_submit_report(hdev, r, USB_DIR_OUT);
}
}