System: Red Hat Enterprise Linux WS release 4 (Nahant Update 6)
Any idea how to Determine if a Serial Port in Linux System is defective?
Issued "cat /proc/tty/driver/serial". see below.
[root@arsenic] ~# cat /proc/tty/driver/serial
serinfo:1.0 driver revision:
0: uart:16550A port:000003F8 irq:4 tx:11 rx:0 RTS|CTS|DTR|DSR|RI
1: uart:unknown port:000002F8 irq:3
2: uart:unknown port:000003E8 irq:4
3: uart:unknown port:000002E8 irq:3
4: uart:16550A port:0000EC98 irq:185 tx:11 rx:0 CTS|DSR|CD
5: uart:unknown port:00000000 irq:0
6: uart:unknown port:00000000 irq:0
7: uart:unknown port:00000000 irq:0
8: uart:unknown port:00000000 irq:0
9: uart:unknown port:00000000 irq:0
.....