Hi, A user has a laptop with composite keyboard/touchpad. The touchpad does not have multitouch ability [1], since it's being recognizes as a usb-generic device. Currently I can only find hid-rmi has similar composite abilities, not much else for other devices. [ 3.683550] hid-generic 0003:04F3:0400.0002: input,hiddev0,hidraw0: USB HID v1.10 Keyboard [ITE Tech. Inc. ITE Device(8910)] on usb-0000:00:14.0-3.1/input0 [ 3.683846] input: ITE Tech. Inc. ITE Device(8910) as /devices/pci0000:00/0000:00:14.0/usb1/1-3/1-3.1/1-3.1:1.1/0003:04F3:0400.0003/input/input7 [ 3.684027] hid-generic 0003:04F3:0400.0003: input,hidraw1: USB HID v1.10 Mouse [ITE Tech. Inc. ITE Device(8910)] on usb-0000:00:14.0-3.1/input1 I tried to make the touchpad (0003:04F3:0400.0003) uses hid-multitouch, but the touchpad doesn't work this way. Also, the keyboard (0003:04F3:0400.0002) loses its functionality because it uses hid-multitouch. So here are my questions: - How to load different driver for different USB interfaces - The best way to remote debug input devices - How to make the touchpad work [1] https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1400463 Here's the diff I use to make it load hid-multitouch (which doesn't work): diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c index 6e040692f1d8..ee3cb86fb4ca 100644 --- a/drivers/hid/hid-core.c +++ b/drivers/hid/hid-core.c @@ -2091,6 +2091,7 @@ static const struct hid_device_id hid_have_special_driver[] = { { HID_USB_DEVICE(USB_VENDOR_ID_MONTEREY, USB_DEVICE_ID_GENIUS_KB29E) }, #endif #if IS_ENABLED(CONFIG_HID_MULTITOUCH) + { HID_USB_DEVICE(USB_VENDOR_ID_ELAN, 0x0400) }, { HID_USB_DEVICE(USB_VENDOR_ID_LG, USB_DEVICE_ID_LG_MELFAS_MT) }, #endif #if IS_ENABLED(CONFIG_HID_WIIMOTE) diff --git a/drivers/hid/hid-multitouch.c b/drivers/hid/hid-multitouch.c index 24d5b6deb571..1891d604b3b7 100644 --- a/drivers/hid/hid-multitouch.c +++ b/drivers/hid/hid-multitouch.c @@ -161,6 +161,7 @@ static void mt_post_parse(struct mt_device *td); #define MT_CLS_GENERALTOUCH_PWT_TENFINGERS 0x0109 #define MT_CLS_LG 0x010a #define MT_CLS_VTL 0x0110 +#define MT_CLS_ELAN 0x0111 #define MT_DEFAULT_MAXCONTACT 10 #define MT_MAX_MAXCONTACT 250 @@ -278,6 +279,8 @@ static struct mt_class mt_classes[] = { MT_QUIRK_CONTACT_CNT_ACCURATE | MT_QUIRK_FORCE_GET_FEATURE, }, + { .name = MT_CLS_ELAN, + .quirks = MT_QUIRK_ALWAYS_VALID }, { } }; @@ -1569,6 +1572,9 @@ static const struct hid_device_id mt_devices[] = { MT_USB_DEVICE(USB_VENDOR_ID_XIROKU, USB_DEVICE_ID_XIROKU_CSR2) }, + { .driver_data = MT_CLS_ELAN, + MT_USB_DEVICE(USB_VENDOR_ID_ELAN, 0x0400) }, + /* Generic MT device */ { HID_DEVICE(HID_BUS_ANY, HID_GROUP_MULTITOUCH, HID_ANY_ID, HID_ANY_ID) }, Thanks. -- 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
