Bashacs@acs-CEM860:~$ dmesg | grep ttyS[ 1.456871] 00:04: ttyS4 at I/O 0x240 (irq = 11, base_baud = 115200) is a 16550A[ 1.477404] 00:05: ttyS5 at I/O 0x248 (irq = 11, base_baud = 115200) is a 16550A[ 1.497913] 00:06: ttyS6 at I/O 0x250 (irq = 11, base_baud = 115200) is a 16550A[ 1.518463] 00:07: ttyS7 at I/O 0x258 (irq = 11, base_baud = 115200) is a 16550A[ 1.539043] 00:09: ttyS0 at I/O 0x3f8 (irq = 4, base_baud = 115200) is a 16550A[ 1.559597] 00:0a: ttyS1 at I/O 0x2f8 (irq = 4, base_baud = 115200) is a 16550A[ 1.580162] 00:0b: ttyS2 at I/O 0x3e8 (irq = 4, base_baud = 115200) is a 16550A[ 1.600717] 00:0c: ttyS3 at I/O 0x2e8 (irq = 4, base_baud = 115200) is a 16550A