Serial & USB ports

J

jailed

Hello,

First of all, I'm using FreeBSD 8.0

I read the manual and think that serial port belongs to sioX. I have scanned all my computers and can't see any sio in dmesg. Then I realized that, serial port may belong to uartX. Because the irq values seem to be same.

On machines acpi disables, I can't even see uart.

Code: 
# dmesg | grep uart
uart0: <16550 or compatible> port 0x3f8-0x3ff irq 4 flags 0x10 on acpi0
uart0: [FILTER]
uart0: <16550 or compatible> port 0x3f8-0x3ff irq 4 flags 0x10 on acpi0
uart0: [FILTER]
uart0: <16550 or compatible> port 0x3f8-0x3ff irq 4 flags 0x10 on acpi0
uart0: [FILTER]

Can you please tell me this is correct or not? Is uart0, serial port?

I also can't find any /dev/ttyd*

In my C codes I think I must use 0x3f8 address to communicate my devices.

So what about /dev devices? There is no /dev/uart0. Can you tell me how can I find the serial port in /dev ?

Second question about usb. when I do dmesg | grep usb, I can't see machine address of usb ports. As 0x378 (paralel port). Can I communicate over usb with standard inb, outb functions? Or is there any other method (system calls, other functions, etc.) Can you give me a resource about programming usb in C.

Thank you.
 
/usr/src/sys/*/conf/GENERIC:

Code: 
# Serial (COM) ports
device          uart            # Generic UART driver

/usr/src/sys/*/conf/GENERIC.hints:
Code: 
hint.uart.0.at="isa"
hint.uart.0.port="[B]0x3F8[/B]"
hint.uart.0.flags="0x10"
hint.uart.0.irq="4"
hint.uart.1.at="isa"
hint.uart.1.port="0x2F8"
hint.uart.1.irq="3"
 
wblock said:
A real serial port will show up as /dev/cuau0. After you've loaded ucom.ko, a USB-to-serial adapter will show up as /dev/cuaU0.
Click to expand...

Thank you very very much. /dev/cuau0 is the right port. And my device has been worked.

This tip saved my life. Thank you.
 
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