MIYAZAKI さん、ご返答ありがとうございます。 > > mknod ttyUSB0 c 188 0 > > mknod ttyUSB0 c 188 0 > > ln -s /dev/ttyUSB1 /dev/pilot > > ttyUSB1が無くなったままのような。 私も、投稿した後、気づきまして、再度 ttyUSB0 ttyUSB1 を削除 mknod ttyUSB0 c 188 0 mknod ttyUSB1 c 188 1 ln -s /dev/ttyUSB1 /dev/pilot しました。 現在の状態は以下のようになっています。 crw-r--r-- 1 root root 188, 0 Jun 13 17:49 /dev/ttyUSB0 crw------- 1 hogehoge tty 188, 1 Jun 13 17:49 /dev/ttyUSB1 crw-r--r-- 1 root root 188, 2 Apr 28 23:09 /dev/ttyUSB2 crw-r--r-- 1 root root 188, 3 Apr 28 23:09 /dev/ttyUSB3 crw-r--r-- 1 root root 188, 4 Apr 28 23:09 /dev/ttyUSB4 crw-r--r-- 1 root root 188, 5 Apr 28 23:09 /dev/ttyUSB5 crw-r--r-- 1 root root 188, 6 Apr 28 23:09 /dev/ttyUSB6 crw-r--r-- 1 root root 188, 7 Apr 28 23:09 /dev/ttyUSB7 lrwxrwxrwx 1 root root 12 Jun 13 17:50 /dev/pilot -> /dev/ttyUSB1 > > これは uhci が先に読み込まれているからだと思われます。 > > > /sbin/modprobe usbserial > > このあと、dmesgに何か出てませんか? > dmesg の 結果です。 . . . Universal TUN/TAP device driver 1.4 (C)1999-2001 Maxim Krasnyansky ide-floppy driver 0.97.sv usb.c: registered new driver usbdevfs usb.c: registered new driver hub mice: PS/2 mouse device common for all mice . . . EXT3-fs: mounted filesystem with ordered data mode. usb.c: registered new driver hiddev usb.c: registered new driver hid hid-core.c: v1.8 Andreas Gal, Vojtech Pavlik <vojtech@xxxxxxx> hid-core.c: USB HID support drivers uhci.c: USB Universal Host Controller Interface driver v1.1 PCI: Found IRQ 14 for device 00:04.2 PCI: Sharing IRQ 14 with 00:04.3 PCI: Sharing IRQ 14 with 00:09.0 uhci.c: USB UHCI at I/O 0xb400, IRQ 14 usb.c: new USB bus registered, assigned bus number 1 hub.c: USB hub found hub.c: 2 ports detected PCI: Found IRQ 14 for device 00:04.3 PCI: Sharing IRQ 14 with 00:04.2 PCI: Sharing IRQ 14 with 00:09.0 uhci.c: USB UHCI at I/O 0xb000, IRQ 14 usb.c: new USB bus registered, assigned bus number 2 hub.c: USB hub found hub.c: 2 ports detected isapnp: Scanning for PnP cards... isapnp: No Plug & Play device found Serial driver version 5.05c (2001-07-08) with MANY_PORTS SHARE_IRQ SERIAL_PCI ISAPNP enabled ttyS00 at 0x03f8 (irq = 4) is a 16550A ttyS01 at 0x02f8 (irq = 3) is a 16550A ip_conntrack (4095 buckets, 32760 max) Linux Tulip driver version 0.9.15-pre9 (Nov 6, 2001) PCI: Found IRQ 14 for device 00:09.0 PCI: Sharing IRQ 14 with 00:04.2 PCI: Sharing IRQ 14 with 00:04.3 eth0: ADMtek Comet rev 49 at 0xe0947000, 00:90:CC:A1:FA:5F, IRQ 14. parport0: PC-style at 0x378 (0x778) [PCSPP,TRISTATE] parport0: Printer, HEWLETT-PACKARD DESKJET 970C parport_pc: Via 686A parallel port: io=0x378 lp0: using parport0 (polling). lp0: compatibility mode となっています。