7 Dec
2007
7 Dec
'07
1:25 p.m.
Christopher Thorjussen wrote:
I just installed CentOS 5.1 on a Dell Vostro 200 (Intel G33) which has a Sunix PCI-Express (x1) 8-port RS-232 card installed. For me it looks like only 4 ports are recognized, but I'm not sure if it's even working with those 4.
<snip>
How can I get the other 4 enabled?
Pass "8250.nr_uarts=8" to the kernel to tell it to create more than the default 4 serial ports (add to /etc/grub/menu.lst and reboot). NOTE: the maximum number of UARTs supported by the CentOS 5 kernel (as of 2.6.18-8.1.8.el5) seems to be 32.
Cheers, Michael