[PATCH] HID: hid-multitouch: Only match MT interfaces

From: Henrik Rydberg
Date: Thu May 03 2012 - 10:38:21 EST

All known hid-multitouch devices currently match any device group.
However, some devices present interfaces belonging to different groups,
resulting in a race between the hid-generic and hid-multitouch modules.
This patch narrows the MT device list to match only HID_GROUP_MULTITOUCH,
which solves the problem.

Reported-by: Benjamin Tissoires <benjamin.tissoires@xxxxxxxxx>
Signed-off-by: Henrik Rydberg <rydberg@xxxxxxxxxxx>
---
drivers/hid/hid-multitouch.c | 145 +++++++++++++++++++++---------------------
1 file changed, 74 insertions(+), 71 deletions(-)

diff --git a/drivers/hid/hid-multitouch.c b/drivers/hid/hid-multitouch.c
index ea465f1..20e9552 100644
--- a/drivers/hid/hid-multitouch.c
+++ b/drivers/hid/hid-multitouch.c
@@ -110,6 +110,9 @@ struct mt_device {

#define MT_DEFAULT_MAXCONTACT 10

+#define MT_USB_DEVICE(v, p) HID_DEVICE(BUS_USB, HID_GROUP_MULTITOUCH, v, p)
+#define MT_BT_DEVICE(v, p) HID_DEVICE(BUS_BLUETOOTH, HID_GROUP_MULTITOUCH, v, p)
+
/*
* these device-dependent functions determine what slot corresponds
* to a valid contact that was just read.
@@ -735,276 +738,276 @@ static const struct hid_device_id mt_devices[] = {

/* 3M panels */
{ .driver_data = MT_CLS_3M,
- HID_USB_DEVICE(USB_VENDOR_ID_3M,
+ MT_USB_DEVICE(USB_VENDOR_ID_3M,
USB_DEVICE_ID_3M1968) },
{ .driver_data = MT_CLS_3M,
- HID_USB_DEVICE(USB_VENDOR_ID_3M,
+ MT_USB_DEVICE(USB_VENDOR_ID_3M,
USB_DEVICE_ID_3M2256) },
{ .driver_data = MT_CLS_3M,
- HID_USB_DEVICE(USB_VENDOR_ID_3M,
+ MT_USB_DEVICE(USB_VENDOR_ID_3M,
USB_DEVICE_ID_3M3266) },

/* ActionStar panels */
{ .driver_data = MT_CLS_DEFAULT,
- HID_USB_DEVICE(USB_VENDOR_ID_ACTIONSTAR,
+ MT_USB_DEVICE(USB_VENDOR_ID_ACTIONSTAR,
USB_DEVICE_ID_ACTIONSTAR_1011) },

/* Atmel panels */
{ .driver_data = MT_CLS_SERIAL,
- HID_USB_DEVICE(USB_VENDOR_ID_ATMEL,
+ MT_USB_DEVICE(USB_VENDOR_ID_ATMEL,
USB_DEVICE_ID_ATMEL_MULTITOUCH) },
{ .driver_data = MT_CLS_SERIAL,
- HID_USB_DEVICE(USB_VENDOR_ID_ATMEL,
+ MT_USB_DEVICE(USB_VENDOR_ID_ATMEL,
USB_DEVICE_ID_ATMEL_MXT_DIGITIZER) },

/* Cando panels */
{ .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER,
- HID_USB_DEVICE(USB_VENDOR_ID_CANDO,
+ MT_USB_DEVICE(USB_VENDOR_ID_CANDO,
USB_DEVICE_ID_CANDO_MULTI_TOUCH) },
{ .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER,
- HID_USB_DEVICE(USB_VENDOR_ID_CANDO,
+ MT_USB_DEVICE(USB_VENDOR_ID_CANDO,
USB_DEVICE_ID_CANDO_MULTI_TOUCH_10_1) },
{ .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER,
- HID_USB_DEVICE(USB_VENDOR_ID_CANDO,
+ MT_USB_DEVICE(USB_VENDOR_ID_CANDO,
USB_DEVICE_ID_CANDO_MULTI_TOUCH_11_6) },
{ .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER,
- HID_USB_DEVICE(USB_VENDOR_ID_CANDO,
+ MT_USB_DEVICE(USB_VENDOR_ID_CANDO,
USB_DEVICE_ID_CANDO_MULTI_TOUCH_15_6) },

/* Chunghwa Telecom touch panels */
{ .driver_data = MT_CLS_DEFAULT,
- HID_USB_DEVICE(USB_VENDOR_ID_CHUNGHWAT,
+ MT_USB_DEVICE(USB_VENDOR_ID_CHUNGHWAT,
USB_DEVICE_ID_CHUNGHWAT_MULTITOUCH) },

/* CVTouch panels */
{ .driver_data = MT_CLS_DEFAULT,
- HID_USB_DEVICE(USB_VENDOR_ID_CVTOUCH,
+ MT_USB_DEVICE(USB_VENDOR_ID_CVTOUCH,
USB_DEVICE_ID_CVTOUCH_SCREEN) },

/* Cypress panel */
{ .driver_data = MT_CLS_CYPRESS,
- HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS,
+ MT_USB_DEVICE(USB_VENDOR_ID_CYPRESS,
USB_DEVICE_ID_CYPRESS_TRUETOUCH) },

/* eGalax devices (resistive) */
{ .driver_data = MT_CLS_EGALAX,
- HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
+ MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_480D) },
{ .driver_data = MT_CLS_EGALAX,
- HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
+ MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_480E) },

/* eGalax devices (capacitive) */
{ .driver_data = MT_CLS_EGALAX,
- HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
+ MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_720C) },
{ .driver_data = MT_CLS_EGALAX_SERIAL,
- HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
+ MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7207) },
{ .driver_data = MT_CLS_EGALAX_SERIAL,
- HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
+ MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_725E) },
{ .driver_data = MT_CLS_EGALAX_SERIAL,
- HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
+ MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7224) },
{ .driver_data = MT_CLS_EGALAX_SERIAL,
- HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
+ MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_722A) },
{ .driver_data = MT_CLS_EGALAX,
- HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
+ MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_726B) },
{ .driver_data = MT_CLS_EGALAX_SERIAL,
- HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
+ MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7262) },
{ .driver_data = MT_CLS_EGALAX,
- HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
+ MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72A1) },
{ .driver_data = MT_CLS_EGALAX_SERIAL,
- HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
+ MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72AA) },
{ .driver_data = MT_CLS_EGALAX,
- HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
+ MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72FA) },
{ .driver_data = MT_CLS_EGALAX,
- HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
+ MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7302) },
{ .driver_data = MT_CLS_EGALAX_SERIAL,
- HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
+ MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7349) },
{ .driver_data = MT_CLS_EGALAX_SERIAL,
- HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
+ MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_A001) },

/* Elo TouchSystems IntelliTouch Plus panel */
{ .driver_data = MT_CLS_DUAL_NSMU_CONTACTID,
- HID_USB_DEVICE(USB_VENDOR_ID_ELO,
+ MT_USB_DEVICE(USB_VENDOR_ID_ELO,
USB_DEVICE_ID_ELO_TS2515) },

/* GeneralTouch panel */
{ .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER,
- HID_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH,
+ MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH,
USB_DEVICE_ID_GENERAL_TOUCH_WIN7_TWOFINGERS) },

/* Gametel game controller */
{ .driver_data = MT_CLS_DEFAULT,
- HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_FRUCTEL,
+ MT_BT_DEVICE(USB_VENDOR_ID_FRUCTEL,
USB_DEVICE_ID_GAMETEL_MT_MODE) },

/* GoodTouch panels */
{ .driver_data = MT_CLS_DEFAULT,
- HID_USB_DEVICE(USB_VENDOR_ID_GOODTOUCH,
+ MT_USB_DEVICE(USB_VENDOR_ID_GOODTOUCH,
USB_DEVICE_ID_GOODTOUCH_000f) },

/* Hanvon panels */
{ .driver_data = MT_CLS_DUAL_INRANGE_CONTACTID,
- HID_USB_DEVICE(USB_VENDOR_ID_HANVON_ALT,
+ MT_USB_DEVICE(USB_VENDOR_ID_HANVON_ALT,
USB_DEVICE_ID_HANVON_ALT_MULTITOUCH) },

/* Ideacom panel */
{ .driver_data = MT_CLS_SERIAL,
- HID_USB_DEVICE(USB_VENDOR_ID_IDEACOM,
+ MT_USB_DEVICE(USB_VENDOR_ID_IDEACOM,
USB_DEVICE_ID_IDEACOM_IDC6650) },
{ .driver_data = MT_CLS_SERIAL,
- HID_USB_DEVICE(USB_VENDOR_ID_IDEACOM,
+ MT_USB_DEVICE(USB_VENDOR_ID_IDEACOM,
USB_DEVICE_ID_IDEACOM_IDC6651) },

/* Ilitek dual touch panel */
{ .driver_data = MT_CLS_DEFAULT,
- HID_USB_DEVICE(USB_VENDOR_ID_ILITEK,
+ MT_USB_DEVICE(USB_VENDOR_ID_ILITEK,
USB_DEVICE_ID_ILITEK_MULTITOUCH) },

/* IRTOUCH panels */
{ .driver_data = MT_CLS_DUAL_INRANGE_CONTACTID,
- HID_USB_DEVICE(USB_VENDOR_ID_IRTOUCHSYSTEMS,
+ MT_USB_DEVICE(USB_VENDOR_ID_IRTOUCHSYSTEMS,
USB_DEVICE_ID_IRTOUCH_INFRARED_USB) },

/* LG Display panels */
{ .driver_data = MT_CLS_DEFAULT,
- HID_USB_DEVICE(USB_VENDOR_ID_LG,
+ MT_USB_DEVICE(USB_VENDOR_ID_LG,
USB_DEVICE_ID_LG_MULTITOUCH) },

/* Lumio panels */
{ .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE,
- HID_USB_DEVICE(USB_VENDOR_ID_LUMIO,
+ MT_USB_DEVICE(USB_VENDOR_ID_LUMIO,
USB_DEVICE_ID_CRYSTALTOUCH) },
{ .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE,
- HID_USB_DEVICE(USB_VENDOR_ID_LUMIO,
+ MT_USB_DEVICE(USB_VENDOR_ID_LUMIO,
USB_DEVICE_ID_CRYSTALTOUCH_DUAL) },

/* MosArt panels */
{ .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE,
- HID_USB_DEVICE(USB_VENDOR_ID_ASUS,
+ MT_USB_DEVICE(USB_VENDOR_ID_ASUS,
USB_DEVICE_ID_ASUS_T91MT)},
{ .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE,
- HID_USB_DEVICE(USB_VENDOR_ID_ASUS,
+ MT_USB_DEVICE(USB_VENDOR_ID_ASUS,
USB_DEVICE_ID_ASUSTEK_MULTITOUCH_YFO) },
{ .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE,
- HID_USB_DEVICE(USB_VENDOR_ID_TURBOX,
+ MT_USB_DEVICE(USB_VENDOR_ID_TURBOX,
USB_DEVICE_ID_TURBOX_TOUCHSCREEN_MOSART) },

/* Panasonic panels */
{ .driver_data = MT_CLS_PANASONIC,
- HID_USB_DEVICE(USB_VENDOR_ID_PANASONIC,
+ MT_USB_DEVICE(USB_VENDOR_ID_PANASONIC,
USB_DEVICE_ID_PANABOARD_UBT780) },
{ .driver_data = MT_CLS_PANASONIC,
- HID_USB_DEVICE(USB_VENDOR_ID_PANASONIC,
+ MT_USB_DEVICE(USB_VENDOR_ID_PANASONIC,
USB_DEVICE_ID_PANABOARD_UBT880) },

/* PenMount panels */
{ .driver_data = MT_CLS_CONFIDENCE,
- HID_USB_DEVICE(USB_VENDOR_ID_PENMOUNT,
+ MT_USB_DEVICE(USB_VENDOR_ID_PENMOUNT,
USB_DEVICE_ID_PENMOUNT_PCI) },

/* PixArt optical touch screen */
{ .driver_data = MT_CLS_INRANGE_CONTACTNUMBER,
- HID_USB_DEVICE(USB_VENDOR_ID_PIXART,
+ MT_USB_DEVICE(USB_VENDOR_ID_PIXART,
USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN) },
{ .driver_data = MT_CLS_INRANGE_CONTACTNUMBER,
- HID_USB_DEVICE(USB_VENDOR_ID_PIXART,
+ MT_USB_DEVICE(USB_VENDOR_ID_PIXART,
USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN1) },
{ .driver_data = MT_CLS_INRANGE_CONTACTNUMBER,
- HID_USB_DEVICE(USB_VENDOR_ID_PIXART,
+ MT_USB_DEVICE(USB_VENDOR_ID_PIXART,
USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN2) },

/* PixCir-based panels */
{ .driver_data = MT_CLS_DUAL_INRANGE_CONTACTID,
- HID_USB_DEVICE(USB_VENDOR_ID_HANVON,
+ MT_USB_DEVICE(USB_VENDOR_ID_HANVON,
USB_DEVICE_ID_HANVON_MULTITOUCH) },
{ .driver_data = MT_CLS_DUAL_INRANGE_CONTACTID,
- HID_USB_DEVICE(USB_VENDOR_ID_CANDO,
+ MT_USB_DEVICE(USB_VENDOR_ID_CANDO,
USB_DEVICE_ID_CANDO_PIXCIR_MULTI_TOUCH) },

/* Quanta-based panels */
{ .driver_data = MT_CLS_CONFIDENCE_CONTACT_ID,
- HID_USB_DEVICE(USB_VENDOR_ID_QUANTA,
+ MT_USB_DEVICE(USB_VENDOR_ID_QUANTA,
USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH) },
{ .driver_data = MT_CLS_CONFIDENCE_CONTACT_ID,
- HID_USB_DEVICE(USB_VENDOR_ID_QUANTA,
+ MT_USB_DEVICE(USB_VENDOR_ID_QUANTA,
USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH_3001) },
{ .driver_data = MT_CLS_CONFIDENCE_CONTACT_ID,
- HID_USB_DEVICE(USB_VENDOR_ID_QUANTA,
+ MT_USB_DEVICE(USB_VENDOR_ID_QUANTA,
USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH_3008) },

/* Stantum panels */
{ .driver_data = MT_CLS_CONFIDENCE,
- HID_USB_DEVICE(USB_VENDOR_ID_STANTUM,
+ MT_USB_DEVICE(USB_VENDOR_ID_STANTUM,
USB_DEVICE_ID_MTP)},
{ .driver_data = MT_CLS_CONFIDENCE,
- HID_USB_DEVICE(USB_VENDOR_ID_STANTUM_STM,
+ MT_USB_DEVICE(USB_VENDOR_ID_STANTUM_STM,
USB_DEVICE_ID_MTP_STM)},
{ .driver_data = MT_CLS_CONFIDENCE,
- HID_USB_DEVICE(USB_VENDOR_ID_STANTUM_SITRONIX,
+ MT_USB_DEVICE(USB_VENDOR_ID_STANTUM_SITRONIX,
USB_DEVICE_ID_MTP_SITRONIX)},

/* TopSeed panels */
{ .driver_data = MT_CLS_TOPSEED,
- HID_USB_DEVICE(USB_VENDOR_ID_TOPSEED2,
+ MT_USB_DEVICE(USB_VENDOR_ID_TOPSEED2,
USB_DEVICE_ID_TOPSEED2_PERIPAD_701) },

/* Touch International panels */
{ .driver_data = MT_CLS_DEFAULT,
- HID_USB_DEVICE(USB_VENDOR_ID_TOUCH_INTL,
+ MT_USB_DEVICE(USB_VENDOR_ID_TOUCH_INTL,
USB_DEVICE_ID_TOUCH_INTL_MULTI_TOUCH) },

/* Unitec panels */
{ .driver_data = MT_CLS_DEFAULT,
- HID_USB_DEVICE(USB_VENDOR_ID_UNITEC,
+ MT_USB_DEVICE(USB_VENDOR_ID_UNITEC,
USB_DEVICE_ID_UNITEC_USB_TOUCH_0709) },
{ .driver_data = MT_CLS_DEFAULT,
- HID_USB_DEVICE(USB_VENDOR_ID_UNITEC,
+ MT_USB_DEVICE(USB_VENDOR_ID_UNITEC,
USB_DEVICE_ID_UNITEC_USB_TOUCH_0A19) },
/* XAT */
{ .driver_data = MT_CLS_DEFAULT,
- HID_USB_DEVICE(USB_VENDOR_ID_XAT,
+ MT_USB_DEVICE(USB_VENDOR_ID_XAT,
USB_DEVICE_ID_XAT_CSR) },

/* Xiroku */
{ .driver_data = MT_CLS_DEFAULT,
- HID_USB_DEVICE(USB_VENDOR_ID_XIROKU,
+ MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
USB_DEVICE_ID_XIROKU_SPX) },
{ .driver_data = MT_CLS_DEFAULT,
- HID_USB_DEVICE(USB_VENDOR_ID_XIROKU,
+ MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
USB_DEVICE_ID_XIROKU_MPX) },
{ .driver_data = MT_CLS_DEFAULT,
- HID_USB_DEVICE(USB_VENDOR_ID_XIROKU,
+ MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
USB_DEVICE_ID_XIROKU_CSR) },
{ .driver_data = MT_CLS_DEFAULT,
- HID_USB_DEVICE(USB_VENDOR_ID_XIROKU,
+ MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
USB_DEVICE_ID_XIROKU_SPX1) },
{ .driver_data = MT_CLS_DEFAULT,
- HID_USB_DEVICE(USB_VENDOR_ID_XIROKU,
+ MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
USB_DEVICE_ID_XIROKU_MPX1) },
{ .driver_data = MT_CLS_DEFAULT,
- HID_USB_DEVICE(USB_VENDOR_ID_XIROKU,
+ MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
USB_DEVICE_ID_XIROKU_CSR1) },
{ .driver_data = MT_CLS_DEFAULT,
- HID_USB_DEVICE(USB_VENDOR_ID_XIROKU,
+ MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
USB_DEVICE_ID_XIROKU_SPX2) },
{ .driver_data = MT_CLS_DEFAULT,
- HID_USB_DEVICE(USB_VENDOR_ID_XIROKU,
+ MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
USB_DEVICE_ID_XIROKU_MPX2) },
{ .driver_data = MT_CLS_DEFAULT,
- HID_USB_DEVICE(USB_VENDOR_ID_XIROKU,
+ MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
USB_DEVICE_ID_XIROKU_CSR2) },

/* Generic MT device */
--
1.7.10

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