PCI-E board for serial port

ogogon

ogogon

Colleagues, I have a very simple task: to add a serial port to the motherboard to connect UPS. The motherboard does not have a built-in serial port and has only PCI-E sockets. (Perhaps the future has already arrived!)

I bought a board with two serial ports on the WCH chipset, but there is a complete misunderstanding.
Please tell me what board I need to look for for my task? What PCI-E serial chip will normally negotiate with the FreeBSD core?

Thank you for your advice,
Ogogon.
 
F

Thread 'Serial console on a motherboard with no serial ports'

Hello,

I have a motherboard without serial ports and I wonder whether it is possible to get a serial console (server side) on it with a PCIe RS232 card or a USB-to-RS232 adapter. So far I had no luck. I can get a console that works once the system finished booting (once getty process start as per /etc/ttys). But what I really need is a console to interact with loader, get kernel messages and interact in single user mode. I don't think this is supported with USB device (happy to be corrected here) but I was hoping that PCIe card will work.

I have in my /boot/loader.conf...
also see /sys/dev/puc/pucdata.c for a list of supported devices
 
cracauer@ said:
I have this one in a FreeBD serverator:
Click to expand...
Oh, what a nostalgic device! In the 91-92 years of the last century, I connected the V.24 modems with MNP-5 through similar boards, but only with the ISA bus. I remember the words "FOSSIL", "mgetty" and "UUCP".
I believe that even now such a card is a price as a wing from Boeing. My intentions are much more modest - to get one serial port.
But in any case - thanks.
 
There are various types of USB to serial chipsets supported. That might be a cheaper and easier solution? I have several of these and use them for serial console access to older devices. Because laptops nowadays usually don't have a serial port anymore either.

ucom(4). uftdi(4)
 
SirDice said:
There are various types of USB to serial chipsets supported. That might be a cheaper and easier solution? I have several of these and use them for serial console access to older devices. Because laptops nowadays usually don't have a serial port anymore either.

ucom(4). uftdi(4)
Click to expand...
Thank you. But I just want to avoid USB solutions and use the most simple.
USB deficiencies are a direct continuation of its advantages. If you use an expensive USB solution, then everything is more or less stable, and the problems are clear how to solve it.
If you use a cheap USB solution, and even worse - а few of the same type, then there will be a real hell. When rebooting or temporary shutdown of one, their numbering procedure and rights will change. And the programs using them, respectively, stop working.

Therefore, I decided to use a non USB solution. It’s easier to build a certain predictable order of things.
 
covacat said:
also see /sys/dev/puc/pucdata.c for a list of supported devices
Click to expand...
I understand correctly that if I see, for example
C: 
{   0x0009, 0x7168, 0xffff, 0,
        "Sunix SUN1889",
        DEFAULT_RCLK * 8,
        PUC_PORT_2S, 0x10, 0, 8,
},
then there should be no problems with the board on this chipset?
 
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