kernelも前もってコンパイルしていたので早速USBに挿してみると・・・ 認識しました! usbserial_generic 2-1:1.0: usb_probe_interface – got id drivers/usb/serial/usb-serial.c: USB Serial Driver core drivers/usb/serial/usb-serial.c: USB Serial support registered for pl2303 pl2303 2-1:1.0: usb_probe_interface pl2303 2-1:1.0: usb_probe_interface – got id pl2303 2-1:1.0: pl2303 converter detected usb 2-1: pl2303 converter now attached to ttyUSB0 usbcore: registered new driver pl2303 drivers/usb/serial/pl2303.c: Prolific PL2303 USB to serial adaptor driver