DL(4) | Kernel Interfaces Manual (VAX) | DL(4) |
The dl driver provides the normal interface described in tty(4), but many of the configuration calls are unsupported, since their functions are handled by jumpers or switches on the serial card itself. Calls related to modem-control lines are also ignored, since these cards lack them.
There's a chance this driver might also work with an LP11, an LPV11 or even a PC11, but it hasn't been tested.
There is no support in the driver for the paper-tape reader on an LT33 attached via a DLV-11KA or similar.
The overrun message is logged in the interrupt routine itself, which will probably just make the problem worse.
The CSR printed on startup is that of the receiver, while the interrupt vector is that of the transmitter.
In order to determine the card's interrupt vector, the driver sends a NUL to each port. This may confuse things attached to them.
The driver has so far only been tested on a DLV-11J. It may or may not work on the other cards it claims to support.
January 28, 1997 | NetBSD 6.1 |