I did a complete reinstall of ubuntu 10.04,
I installed the arduino 0018 using the personal package thing. The IDE is installed and looks fine, but I still can't get ttyUSB0 to show up. I use lsusb in a terminal and I see the ftdi show up.
Eberhard, the output of the first command is:
[ 2760.520456] INFO: task lsusb:3021 blocked for more than 120 seconds.
[ 2760.520460] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 2760.520464] lsusb D 0060f8c8 0 3021 1 0x00000004
[ 2760.520476] cc58be68 00000086 cc58be24 0060f8c8 00000000 c08874a0 cc580f7c c08874a0
[ 2760.520488] b491f863 0000022f c08874a0 c08874a0 cc580f7c c08874a0 c08874a0 f690d500
[ 2760.520504] b459e622 0000022f cc580cd0 7fffffff f761f498 cc580cd0 cc58bec8 c05b012d
[ 2760.520518] Call Trace:
[ 2760.520530] [<c05b012d>] schedule_timeout+0x1ad/0x280
[ 2760.520538] [<c020fdef>] ? __dentry_open+0x1af/0x290
[ 2760.520549] [<c02ff4bd>] ? security_inode_permission+0x1d/0x30
[ 2760.520558] [<c021ac2e>] ? inode_permission+0x9e/0xb0
[ 2760.520565] [<c020ffcd>] ? nameidata_to_filp+0x5d/0x70
[ 2760.520572] [<c0215050>] ? chrdev_open+0x0/0x200
[ 2760.520582] [<c021e5f2>] ? do_filp_open+0x4d2/0x990
[ 2760.520589] [<c05b0e6f>] __down+0x5f/0x90
[ 2760.520596] [<c0174a69>] down+0x39/0x40
[ 2760.520602] [<c04710ae>] usbdev_read+0x3e/0x250
[ 2760.520609] [<c02fe3b4>] ? security_file_permission+0x14/0x20
[ 2760.520615] [<c05b1b77>] ? unlock_kernel+0x27/0x30
[ 2760.520621] [<c021227f>] vfs_read+0x9f/0x1a0
[ 2760.520629] [<c02203c9>] ? do_vfs_ioctl+0x79/0x310
[ 2760.520634] [<c0471070>] ? usbdev_read+0x0/0x250
[ 2760.520644] [<c0212432>] sys_read+0x42/0x70
[ 2760.520649] [<c0109763>] sysenter_do_call+0x12/0x28
There was no output when I entered the code after plugging in the arduino.