Hi, > Win8 devices are required to present the feature "Maximum Contact Number". > If the current value is 0, then, the driver can get the actual supported > contact count by seeing the logical_max. And for win7, it is zero? > > Signed-off-by: Benjamin Tissoires <benjamin.tissoires@xxxxxxx> > --- > drivers/hid/hid-multitouch.c | 2 ++ > 1 files changed, 2 insertions(+), 0 deletions(-) > > diff --git a/drivers/hid/hid-multitouch.c b/drivers/hid/hid-multitouch.c > index c6ffb05..e205d1e 100644 > --- a/drivers/hid/hid-multitouch.c > +++ b/drivers/hid/hid-multitouch.c > @@ -265,6 +265,8 @@ static void mt_feature_mapping(struct hid_device *hdev, > case HID_DG_CONTACTMAX: > td->maxcontact_report_id = field->report->id; > td->maxcontacts = field->value[0]; > + if (!td->maxcontacts) > + td->maxcontacts = field->logical_maximum; > if (td->mtclass.maxcontacts) > /* check if the maxcontacts is given by the class */ > td->maxcontacts = td->mtclass.maxcontacts; > -- > 1.7.7.6 > Thanks, Henrik -- To unsubscribe from this list: send the line "unsubscribe linux-input" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
