Rainer Hantsch schrieb: [...] wenn ich mich recht entsinne, ist für Digiboards ein spezielles Kernel Modul erforderlich. In /usr/src/linux/Documentation/Configure.help finde ich jetzt dazu folgendes: Digiboard Intelligent async support CONFIG_DIGIEPCA This is a driver for Digi International's Xx, Xeve, and Xem series of cards which provide multiple serial ports. You would need something like this to connect more than two modems to your Linux box, for instance in order to become a dial-in server. This driver supports the original PC (ISA) boards as well as PCI, and EISA. If you have a card like this, say Y here and read the file file:Documentation/digiepca.txt. NOTE: There is another, separate driver for the Digiboard PC boards: "Digiboard PC/Xx Support" below. You should (and can) only select one of the two drivers. If you want to compile this driver as a module, say M here and read file:Documentation/modules.txt. The module will be called epca.o. Digiboard PC/Xx Support CONFIG_DIGI This is a driver for the Digiboard PC/Xe, PC/Xi, and PC/Xeve cards that give you many serial ports. You would need something like this to connect more than two modems to your Linux box, for instance in order to become a dial-in server. If you have a card like that, say Y here and read the file file:Documentation/digiboard.txt. If you want to compile this driver as a module, say M here and read file:Documentation/modules.txt. The module will be called pcxx.o. Schau mal, ob das Modul "epca" oder "pcxx" geladen ist. Die /dev Files sollten dann als /dev/ttyD0 etc. zu finden sein. Dazu aus /usr/src/linux/Documentation/devices.txt: 22 char Digiboard serial card 0 = /dev/ttyD0 First Digiboard port 1 = /dev/ttyD1 Second Digiboard port