home *** CD-ROM | disk | FTP | other *** search
- Newsgroups: comp.os.linux
- Path: sparky!uunet!cs.utexas.edu!tamsun.tamu.edu!tamuts!n217cg
- From: n217cg@tamuts.tamu.edu (Scott Taylor)
- Subject: Re: How to run a second modem on COM3, IRQ5
- Message-ID: <1992Sep3.055226.22057@tamsun.tamu.edu>
- Followup-To: comp.os.linux
- Summary: no problemo
- Keywords: setserial, modems, IRQ
- Sender: Scott Taylor (n217cg@tamuts.tamu.edu)
- Organization: ~/lib/organization
- References: <1992Sep2.202602.18765@magnus.acs.ohio-state.edu>
- Date: Thu, 3 Sep 1992 05:52:26 GMT
- Lines: 40
-
- In article <1992Sep2.202602.18765@magnus.acs.ohio-state.edu> bjones@magnus.acs.ohio-state.edu (William A Jones) writes:
- >I just obatined a Gateway Telepath modem from a coworker who decided that he
- >didn't want it anymore. So, now I have two high speed modems. But, after
- >reading the documentation, I discovered that the Telepath can be configured
- >to use any of the 4 COM ports as IRQ5. So, what I was hoping to do is
- >keep my current installation (Microsoft Mouse on COM1, IRQ4; modem on
- >COM2, IRQ3) and run the Gateway on COM3 (or COM4) using IRQ5. Is this
- >possible? If so, what changes (I'm sure there are some) would I need to
- >make to the kernel? What else would I have to do to get this to happen?
- >
- You shouldn't need to make any changes to the kernel (assuming you are running
- anything newer than 0.96a) to get this to work. I currently am running my modem
- (2400 baud internal) as a third serial port using IRQ 5; the manual calls it
- COM3 IRQ 5 or COM6 (don't you love DOS?). It works fine. What you will need
- is the program setserial.c that was posted here some time ago; it's probably
- available from a fine ftp site near you, or I can mail it to you. Also, make
- sure that the adress of the modem doesn't conflict with the addresses of your
- other serial ports; setting it up as COM3 should be OK. Shut down your PC, put
- in the card, and reboot. Linux should report three serial ports. Make sure
- you have a /dev/ttys3 (assuming that the other two serial ports are ttys1 and
- ttys2); you can make it with "mknod /dev/ttys3 c 4 66". Then run setserial:
- "setserial /dev/ttys3 0x03e8 5" (for COM3, IRQ 5, of course). Be careful,
- since setserial can lock up your system if anything is incorrect (either
- the args to setserial or your modem configuration). After that, you should
- be in business. You may want to put your setserial command in /etc/rc (or
- rc.local), so that the modem is set up every time you reboot.
-
- BTW, I am running 0.96c pl2; I assume the procedure is the same for 0.97
- and that setserial is still necessary and still works. Please feel free
- to correct me if I'm wrong (it won't be a new experience ;-) )
-
- >Thanks,
- >
- >Bill
- >
- >
- >
-
- Scott Taylor
- n217cg@tamuts.tamu.edu
-