[PATCH 4/4] input/alps: Set DualPoint flag for 74 03 28 devices
From: Ben Gamari <hidden>
Date: 2016-05-28 12:01:22
Subsystem:
alps ps/2 touchpad driver, input (keyboard, mouse, joystick, touchscreen) drivers, the rest · Maintainers:
Dmitry Torokhov, Linus Torvalds
Here we introduce logic in alps_identify to set the ALPS_DUALPOINT flag for touchpad hardware responding to E7 report with 73 03 28, as is found in the Dell Latitude E7470. --- drivers/input/mouse/alps.c | 6 ++++++ 1 file changed, 6 insertions(+)
diff --git a/drivers/input/mouse/alps.c b/drivers/input/mouse/alps.c
index 25d2cad..431bc26 100644
--- a/drivers/input/mouse/alps.c
+++ b/drivers/input/mouse/alps.c@@ -2776,6 +2776,7 @@ static int alps_identify(struct psmouse *psmouse, struct alps_data *priv) const struct alps_protocol_info *protocol; unsigned char e6[4], e7[4], ec[4]; int error; + int flags = 0; /* * First try "E6 report".
@@ -2817,6 +2818,10 @@ static int alps_identify(struct psmouse *psmouse, struct alps_data *priv) } else if (e7[0] == 0x73 && e7[1] == 0x03 && e7[2] == 0x14 && ec[1] == 0x02) { protocol = &alps_v8_protocol_data; + } else if (e7[0] == 0x73 && e7[1] == 0x03 && + e7[2] == 0x28 && ec[1] == 0x01) { + protocol = &alps_v8_protocol_data; + flags |= ALPS_DUALPOINT | ALPS_DUALPOINT_WITH_PRESSURE; } else { psmouse_dbg(psmouse, "Likely not an ALPS touchpad: E7=%3ph, EC=%3ph\n", e7, ec);
@@ -2830,6 +2835,7 @@ static int alps_identify(struct psmouse *psmouse, struct alps_data *priv) error = alps_set_protocol(psmouse, priv, protocol); if (error) return error; + priv->flags |= flags; } return 0;
--
2.8.1