Re: 1-way modem

In article <UlKxj.16768$w94.14542@pd7urf2no>, Calab <myspam@xxxxxx> wrote:
Had the same issue when a modem and COM port shared an IRQ. I only found out
what the problem was because I had a mouse in the COM port... I'd only
recieve data from the modem if I moved the mouse around.

I really like that theory the best -- because a missing interrupt seems
like it would explain the behavior. I don't see anything else with IRQ4
in /proc/interrupts, but.. didn't those IRQ's get tied to particular
other IRQ's in the olden days. Maybe we're way past that now, and
this is a modern machine. I thought maybe 4 was tied to 9, which on
our box would put it with acpi.

But i'm not googling any such pairings so far.
.

Relevant Pages

  • Re: 1-way modem
    ... what the problem was because I had a mouse in the COM port... ... recieve data from the modem if I moved the mouse around. ... IRQ 2 is used for the IRQs between 9 and 16. ...
    (comp.os.linux.hardware)
  • Re: Setting hardware flow control on serial port
    ... configure and check HW flow control. ... In my modem initialization string I ... Turning on hardware flow control on the port is important in getting the modem to work properly and for best performance. ... Using the hardwired device file with hardware flow control, you should be able to communicate with the modem with the kermit ...
    (comp.sys.hp.hpux)
  • Debranded Presario Desktop Reviewed
    ... The box is a debranded Presario desktop, sold with model number TS-XN0102RS, ... which is occupied by the useless modem and one PCI-E slot. ... Ethernet port. ... useless modem card has line in only. ...
    (comp.unix.bsd.freebsd.misc)
  • Re: ive tried that too
    ... I'm thinking you should only be handling the modem device, ... and not the port in this case. ... when i run it connected to the internal modem port, ... program hangs without any connection being established. ...
    (microsoft.public.vb.general.discussion)
  • Re: Change COM port
    ... software and physically remove your modem so that you can reboot the system ... with DOS and DOS based Windows.. ... I remember the days going> back to DOS 6.22, when in connecting up a modem, it had to> be set, and sometimes jumpered, for appropriate COM port. ... >> connections), ...
    (microsoft.public.windowsxp.basics)