dmfsp(4)
NAME
dmfsp − DMF32 serial printer
SYNTAX
device dmf0 at uba? csr 0160340 flags 0x????
vector dmfsrint dmfsxint dmfdaint dmfdbint dmfrint dmfxint dmflint
DESCRIPTION
The dmf supports a connection to a line printer through the line printer port of the DMF32.
Bits 8-15 of the flags longword are used to specify the number of columns per line on the line printer. If 0 is specified, 132 columns will be used. Bits 16-23 are used to specify the number of lines per page. If 0 is specified, 66 lines will be used.
DIAGNOSTICS
dmf%d: Line Printer Disconnected.
This message occurs if an open is performed on the printer port when the DMF32 detects that there is no printer cable connected.
dmf%d: Printer DMA Error
A DMA output transfer to the printer failed. This could be caused by a memory error or an invalid pte.
FILES
/dev/lp?