On Sun, 23 Jan 2000, Ing. Jose A. Amador wrote:
>
> I am still in state of confusion, as it has not worked WELL so far under
> Linux. Please let me insist on clearing this old doubt of mine, if gurus
> can help.
>
> Using RedHat 5.2 and kernel 2.0.36 on a DX2/66, how can I make a MS400
> card, with AA4RE mods to share a single IRQ for the four ports (IRQ12,
> wired in place of the lower IRQ's) that STILL works under MSDOS and BPQ
> 4.08A on the same computer ?
>
--snip--
> Jose, CO2JA
Jose,
Here's what I do with a "stb" 4-port card in addition to my Motherboard
provided com1 & 2.
In rc.serial, there are a set of lines for additional ttySx ports that
don't conform to already configured options for brands of board which I
don't have. I comment out the "wild interrupt detection" just above the
Manual Setup, then edit the additional ports as follows:
ttyS0 & ttyS1 are configured as standard io and irq. My additional 4-port
card is set up as ttyS2, ttyS3, ttyS14, ttyS15: Here is an excerpt from my
rc.serial file: (note: I use libc and 2.0.36 kernel)
--/etc/rc.d/rc.serial--
STD_FLAGS="session_lockout"
SETSERIAL=/sbin/setserial
echo -n "Configuring serial ports...."
# Do wild interrupt detection
#
#${SETSERIAL} -W /dev/cua0
#
###############################################################
# MANUAL CONFIGURATION
# If you want to do manual configuration of one or more of your
# serial ports, uncomment and modify the relevant lines.
###############################################################
# These are the standard COM1 through COM4 devices
# ${SETSERIAL} /dev/cua0 uart 16450 port 0x3F8 irq 4
# ${SETSERIAL} /dev/ttyS1 uart 16550A port 0x2F8 irq 3 spd_vhi autoconfig
# begin 4-port card config:
${SETSERIAL} /dev/cua2 uart 16550A port 0x3E8 irq 5 spd_hi
${SETSERIAL} /dev/cua3 uart 16550A port 0x2E8 irq 5
# These are two spare devices you can use to customize for
# some board which is not supported above....
${SETSERIAL} /dev/cua14 uart 16550A port 0x1E8 irq 5
${SETSERIAL} /dev/cua15 uart 16550A port 0x1A8 irq 5
#---------- edit io/irq ------------^^^^^^^^^^^^^^^^^^
###########################################################
#
# Print the results of the serial configuration process
#
###########################################################
echo "done."
${SETSERIAL} -bg /dev/cua? /dev/cua??
--eof--
--
73, Ronnie.
[EMAIL PROTECTED]
