OS/2, eCS & ArcaOS - Technical > Networking

USB Modem

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Dave Yeo:
Found mine. First doing mode com1 gave me an error about no com port installed. Installed USBCOM.SYS and rebooted.

--- Code: ---USB driver version = 12.11
----- USB device tree ---------------------------------------------------------
DS 07f0=7798

Controller 0: USBXHCD$
Root Hub 0 (4 ports) 1B21:2142

Controller 1: USBEHCD$
Root Hub 1 (2 ports) 8086:1C2D
  Port 1:  Hub 3 (6 ports) 8087:0024 (HS hub with single TT) Intel Corp. Integr
    Port 3: Device 046D:C534 (HID)-(Keyboard)(HID)-(Mouse) FS Logitech, Inc. Un
    Port 4: Device 0BAF:0303  HS U.S. Robotics USR5637 56K Faxmodem

Controller 2: USBEHC2$
Root Hub 2 (2 ports) 8086:1C26
  Port 1:  Hub 4 (8 ports) 8087:0024 (HS hub with single TT) Intel Corp. Integr

Z:\Mozprofiles\Downloads>mode com1
baud     = 9600                   parity   = NONE
databits = 8                      stopbits = 1
TO       = OFF                    XON      = OFF
IDSR     = OFF                    ODSR     = OFF
OCTS     = OFF                    DTR      = ON
RTS      = ON                     BUFFER   = N/A

--- End code ---

Do you have com.sys installed? The modem takes the first free port IIRC, try com2, etc.

Edit: I see usbtree shows yours as the same device ID but a different description, hopefully they haven't changed its firmware.

Neil Waldhauer:
I saw that you were working with a USB 2 connection. I tried that too, but no change. I may as well open an incident with Arca Noae.

This modem ought to work. Here is the support site. They support Windows 2000...

https://support.usr.com/support/product-template.asp?prod=5637

Dave Yeo:
I tried the USB3 controller, same results. I am on the 12.11 drivers, not that that should matter. All I can assume is that yours has a different firmware version.

Dave Yeo:
Be good to test under a different operating system too as the modem could be defective.

Neil Waldhauer:
Although I don't like to touch other operating systems, I tried plugging the modem into Ubuntu desktop.

I have no idea how to use a modem under Linux, but lsusb does show the device, and ls /dev shows a new device /dev/ttyACM0 that appears when I plug in, and disappears when I unplug.

It turns out OS/2 is assigning the serial port to COM10.

Device=usbcom.sys /N:COM1

is required to assign the modem to COM1. Now I have to remember how a modem works...

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