Help: Hayes ESP card

Help: Hayes ESP card

Post by Bria » Tue, 16 Sep 1997 04:00:00

I have a Hayes ESP card I am using with my Linux system kernel 2.0.30.

I am using:


and patched setserial correctly.  here is what I have in

options esp irq=0,0,0,0,0,0,0,3 divisor=0,0,0,0,0,0,0,0x4 dma=3

here is what setserial reports:

ns:~# setserial -a /dev/cup56
/dev/cup56, Line 56, UART: 16550A, Port: 0x0380, IRQ: 3
        Baud_base: 921600, close_delay: 50, divisor: 4
        Flags: spd_cust skip_test

The problem I am having, is when I try and set my terminal program
(minicom) or ppp software to 38.4k it doesnt work.  The reason I am
setting it to 38.4k, is because it is my understanding, that when using a
divisor, and spd_cust, 38.4k is translated to the divided this case that would be 230400.

I have a 3com Impact IQ ISDN modem, and I am just trying to get it to do
the full 128k that it can do.  Everything works fine as long as I don't
set the serial port to 38.4k......I CAN set it to 115200 no problems.
There are no dma/irq/iobase conflicts.

Does anyone know what I am doing wrong?

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1. need help w/ Hayes ESP serial card and Linux

I recently (ok, yesterday) purchased a Hayes 1-port ESP serial accelerator
"for windows". I guess I shouldn't be too surprised that I'm having
trouble with it in Linux, even though the card is supposed to be backward
compatible with the 16550,16450. I have the card set up as com1 (3F8) using
irq 9 and I am using setserial to tell this to Linux. (Linux does identify
the card as a 16550A upon boot up.) I was previously using my modem on
Com2, so I had to remake the /dev/modem file so it pointed to the right
spot. Using kermit, I can send commands to my modem. I can get it to dial

Is there some other program which tells Linux how to interact with
/dev/modem which I need to change, or is it just impossible to use this
card. I find it hard to believe that if I can send commands to my modem
through this port, that I can't recieve responses back through it. I have
already looked through the FAQ and have not found any help there.

Thanks for any and all help.


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