Commit e3a79212 authored by Hans de Goede's avatar Hans de Goede Committed by Dmitry Torokhov

Input: alps - report V2 Dualpoint Stick events via the right evdev node

On V2 devices the DualPoint Stick reports bare packets, these should be
reported via the "AlpsPS/2 ALPS DualPoint Stick" dev2 evdev node, which also
has the INPUT_PROP_POINTING_STICK propbit set.

Note that since there is no way to distinguish these packets from an external
PS/2 mouse (insofar as these laptops have an external PS/2 port) this means
that we will be reporting PS/2 mouse events via this evdev node too, as we've
been doing in kernel 3.19 and older.

This has been tested on a Dell Latitude D620 and a Dell Latitude E6400,
which both have a V2 touchpad + a DualPoint Stick which reports bare packets.
Signed-off-by: default avatarHans de Goede <hdegoede@redhat.com>
Reviewed-by: default avatarPali Rohár <pali.rohar@gmail.com>
Signed-off-by: default avatarDmitry Torokhov <dmitry.torokhov@gmail.com>
parent 59c30afb
......@@ -1161,7 +1161,12 @@ static void alps_report_bare_ps2_packet(struct psmouse *psmouse,
struct alps_data *priv = psmouse->private;
struct input_dev *dev;
if (unlikely(IS_ERR_OR_NULL(priv->dev3))) {
/* Figure out which device to use to report the bare packet */
if (priv->proto_version == ALPS_PROTO_V2 &&
(priv->flags & ALPS_DUALPOINT)) {
/* On V2 devices the DualPoint Stick reports bare packets */
dev = priv->dev2;
} else if (unlikely(IS_ERR_OR_NULL(priv->dev3))) {
/* Register dev3 mouse if we received PS/2 packet first time */
if (!IS_ERR(priv->dev3))
psmouse_queue_work(psmouse, &priv->dev3_register_work,
......
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