MOXA C104H/PCI Series of easy to use 4-Port RS-232 serial boards, with data transmission speed up to 921.6 Kbps, have IRQ and I/O. • PCI to Serial 2-port Controller Card based on NM9835CV • Plug & Play - Automatically selects IRQ and I/O address • Supports PCI IRQ sharing. Buy Rosewill Single Serial Port PCI Card Model RC-300 with fast shipping and top-rated customer service. Automatically selects IRQ & IO address. The so-called Standard IRQ assignments date back to the early days of DOS and Windows 3.x. Serial port 1 (COM1) is normally the (serial) mouse; serial port 2.

I have got a PC with Ubuntu 14.04 desktop. The main plate has a serial port (ttyS0) that works perectly, but the ports in additional PCI cards don't. Netbeans Download For Windows 8. When my program calls 'open', this function is not returning and the program stops hanging there. If I would use the port ttyS0, the function returns and the program continues using the port transmiting information. What could be the reason for 'open' hanging. Setserial shows me that system is detecting those ports and assigning IRQ's. Could you help me?

Do you know any link where I could see for help?