On Sun, 2008-02-03 at 16:20 -0600, Mikkel L. Ellertson wrote: > Ric Moore wrote: > > > > Lordy Rick, I'm an old BBS sysop from back when. I have a RS Robotics > > external with all the bells and whistles in hardware, so I'm connected > > only by a serial cable. I'm gonna check out your suggestion about the > > IRQ though. I sure miss setting pin jumpers. Devices generally stayed > > where you put 'em, IRQ wise. Here's /proc/interrupts > > > <----------------------[snip]---------------> > > > > I don't see IRQ 3 or 4 listed for serial port. Do I have to gink with > > uugetty or set serial? Is that the right place to look?? Ric > > > One thing I have noticed is that the IRQs will not show up unless > something is actually using the device. For serial ports, the IRQ > will not show up until something opens the port. Something on the > line of if there isn't anything that is going to process it, the IRQ > is disabled, and does not show up in the list. > > I don't know if it will help, but you may want to check with > setserial to see if it is detecting the correct UART type. You can > also try adjusting the FIFO settings. If the driver is treating the > UART as if it does not have a FIFO, or if the FIFO settings are > wrong, then the serial port will generate too many interrupts. It is > possible that it is generating one interrupt per character > sent/received. # setserial /dev/ttyS0 /dev/ttyS0, UART: 16550A, Port: 0x03f8, IRQ: 4 Looks good. Man, it's been awhile since back when I managed 4 modems each on two machines for my BBS. That route was cheaper than those specialty serial cards. Worked like a dream. Didn't have DvD's back then either. Gonna try playing "Time Bandits" and send this email! -- ================================================ My father, Victor Moore (Vic) used to say: "There are two Great Sins in the world... ..the Sin of Ignorance, and the Sin of Stupidity. Only the former may be overcome." R.I.P. Dad. Linux user# 44256 Sign up at: http://counter.li.org/ http://www.sourceforge.net/projects/oar http://www.wayward4now.net <---down4now too ================================================
