NAME
tcom —
multiplexing serial communications
interface
SYNOPSIS
For 4-port TC-400 series boards:
tcom0 at isa? port 0x100 irq 5
com2 at tcom? slave ?
com3 at tcom? slave ?
com4 at tcom? slave ?
com5 at tcom? slave ?
For 8-port TC-800 series boards:
tcom0 at isa? port 0x100 irq 5
com2 at tcom? slave ?
com3 at tcom? slave ?
com4 at tcom? slave ?
com5 at tcom? slave ?
com6 at tcom? slave ?
com7 at tcom? slave ?
com8 at tcom? slave ?
com9 at tcom? slave ?
DESCRIPTION
Thetcom driver provides support for the Byte Runner
Technologies TC-400 and TC-800 series boards that multiplex together up to
four or eight EIA RS-232C (CCITT V.28) communications interfaces.
Each tcom device is the master device for
up to eight com devices. The kernel configuration
specifies these com devices as slave devices of the
tcom device, as shown in the synopsis. The slave ID
given for each com device determines which bit in
the interrupt multiplexing register is tested to find interrupts for that
device. The port specification for the tcom device
is used to compute the base addresses for the com
subdevices and the port for the interrupt multiplexing register.
Not all possible configuration options are currently supported (for example, speeds beyond 115200 baud are not currently supported).
FILES
- /dev/tty??
SEE ALSO
HISTORY
The tcom driver was written by Jukka
Marin.