Hi. There is nothing wrong in sharing interrupts. In my case since mobo and ISA ports occupy most irq's, I have all PCI cards and mobo USB sharing IRQ 11 (USB controller, two graphics, TV digitizer (audio&video), lan card, two PCI serials, one PCI parallel). A possible reason for the problem is that for sharing irq, software must be written with interrupt sharing in mind. For the serial module this has been done recently (see http://serial.sourceforge.net), so could be you had not serial.c updated, and had to not use serial irq sharing. ----- Original Message ----- From: "Ken Green" <seahawk@bdcsi.net> To: "Ben Rosenberg" <ben@whack.org> Cc: "SLE" <suse-linux-e@suse.com> Sent: Monday, May 14, 2001 2:07 AM Subject: Re: [SLE] Modem on Port 5
Ben Rosenberg wrote:
Try forcing your PCI cards to their own IRQ's so that they aren't sharing IRQ's. You can make sure that the first 4 PCI slots take up IRQ's like this
Slot 1 - IRQ9 Slot 2 - IRQ10 Slot 3 - IRQ11 Slot 4 - IRQ12
Most mother boards let you assign IRQ's like this. I don't know your bios so your gonna have to check this out.
Thanks to you and several other people, I was able to get the modem connected to ttyS3 by using the following commands:
lspci -v
setserial /dev/ttyS3 uart 16500a port oxdoo irq 9
setserial -g /dev/ttyS3
Thanks to all of those who helped.
Regard,
Ken Green