> > tr@fuckup:~/work$ ls -al /dev/ttyS* > crw-rw---- 1 root dialout 4, 64 2009-07-12 14:46 /dev/ttyS0 > crw-rw---- 1 root dialout 4, 65 2009-07-12 14:46 /dev/ttyS1 > crw-rw---- 1 root dialout 4, 66 2009-07-12 14:46 /dev/ttyS2 > crw-rw---- 1 root dialout 4, 67 2009-07-12 14:46 /dev/ttyS3 > as you can see the minor number of /dev/ttyS1 is 65. if I remember correctly, each driver has to register its device node with major, minor number. In 8250.c, the 8250_init will assign each 8250 device with 8250 driver which minor number is 64. if I have 2 8250 serial devices, it seems impossible I can driver my second 8250 serial device through /dev/ttyS1, since driver is registered for minor 64 but ttyS1 is minor 65. appreciate your help, vichy -- To unsubscribe from this list: send an email with "unsubscribe kernelnewbies" to ecartis@xxxxxxxxxxxx Please read the FAQ at http://kernelnewbies.org/FAQ