USB_DEVICE_ID_SYNAPTICS_WP 1101 drivers/hid/hid-ids.h #define USB_DEVICE_ID_SYNAPTICS_WP	0x0008
USB_DEVICE_ID_SYNAPTICS_WP   51 drivers/input/mouse/synaptics_usb.c #define USB_DEVICE_ID_SYNAPTICS_WP	0x0008	/* Synaptics USB WheelPad */