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Commit aeaa881f authored by Ben Gamari's avatar Ben Gamari Committed by Dmitry Torokhov
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Input: ALPS - set DualPoint flag for 74 03 28 devices 



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.

Tested-by: default avatarMichal Hocko <mhocko@suse.com>
Signed-off-by: default avatarBen Gamari <ben@smart-cactus.org>
Signed-off-by: default avatarDmitry Torokhov <dmitry.torokhov@gmail.com>
parent 7ad8a106

drivers/input/mouse/alps.c

+7 −0
Original line number Diff line number Diff line
@@ -2747,6 +2747,10 @@ static int alps_set_protocol(struct psmouse *psmouse, 
		if (alps_set_defaults_ss4_v2(psmouse, priv))

			return -EIO;



		if (priv->fw_ver[1] == 0x1)

			priv->flags |= ALPS_DUALPOINT |

					ALPS_DUALPOINT_WITH_PRESSURE;



		break;

	}
@@ -2819,6 +2823,9 @@ 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;

		} else {

			psmouse_dbg(psmouse,

				    "Likely not an ALPS touchpad: E7=%3ph, EC=%3ph\n", e7, ec);