Hi, I've tried PS/2 keyboard adaptor for DC with PS/2 keyboard. http://www.karat-jp.com/products/dc/dc_keyad/dc_keyad.html This adapter replies 0x04(LCD?) by MAPLE_COMMAND_GETCOND, so, htonl(sc->sc_rxbuf[p][s][1]) == u->getcond_func (line 328 in maple.c) doesn't match. PS/2 keyboard can be used if this line is skipped... sakamoto