My company just got an ISDN line, the only high-speed connection available at our location, and bought a US Robotics ISDN Terminal Adapter. It has serial and USB connectors. Wanting to get the best speed possible, I found a server with a USB port and went to work configuring it to use the TA.
I am running Debian on the server, so I am using a 2.2 kernel, 2.2.20 to be specific. The USB options I compiled in the kernel are CONFIG_USB, CONFIG_USB_DEVICEFS, CONFIG_USB_UHCI, and CONFIG_USB_ACM. Everything works initially. I see the modem in /proc/bus/usb/devices, pppd sees a modem at /dev/ttyACM0 and we can connect to the Internet. The problem is that every night the modem dies and pppd can no longer dial out. The solution is to unplug/replug the modem's power and the kernel sees a "new" usb device. Grepping syslog for usb events, I always find something similar to this line: kernel: usb-uhci.c: interrupt, status 3, frame# 2034, just before the modem stops responding. If I can't keep the modem up through USB I will have to switch to the serial cable, which probably won't have the same data transfer rate. Any ideas as to what is wrong? Why does the modem die every night? Ryan _______________________________________________ [EMAIL PROTECTED] To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-users
