Hello, this patch adds support for IRTOUCHSYSTEMS (or UNITOP) infrared touchscreens. The manufacturer (http://www.irtouch.com) provides only closed source drivers for specific kernel versions (looks like GPL violation, btw.) which I haven't even tried (as there's no chance that any of the modules could work with 2.6.22-rc kernel). They also don't provide any protocol specification. So I made this code (attached) after observing the data stream with usbmon for a while. If someone is interested in my observations, here are the results: The touchscreen sends data in 8-byte packets. BYTE 0 - unknown meaning, seen only one value: 0x54 BYTE 1 - unknown meaning, 3 lowest bits indicate touch state values seen: 0x81, 0x82 or 0x83 bit 0 = set if the screen is touched and was not touched before (touch bit 1 = set if the screen is touched and was touched (dragging) bit 2 = set if the touch was ended (release) BYTES 2 and 3 - X position, high-order-byte first, range = 0 to 0x0FFF BYTES 4 and 5 - Y position, high-order-byte first, range = 0 to 0x0FFF BYTE 6 - unknown meaning, seen only one value: 0xFF BYTE 7 - unknown meaning, seen only one value: 0x00 Signed-off-by: Ondrej Zary -- Ondrej Zary