In the BIOS, I turn the 'PnP OS' option off. In the 'PCI peripherals' section of the BIOS, I disable the two 'Onboard serial devices' (as these two 9-pin ports are currently unused).
When I look into Win95, I look at the settings for my modem and find that IRQ 4 is used for address 0x3f8, with DMAs 7, 5 active. Then, I go to Linux, set up the same for /dev/ttyS1 through 'setserial' and the 'isapnp' tools. When I use 'cu' to connect to the modem, I go to another xterm and type 'cat /proc/interrupts' to see what's going on with IRQ 4. Well, IRQ 4 fires off exactly 0 times, according to /proc/interrupts. Moreover, the modem never responds to ATE1 or anything else. I'm really at my wit's end on this one. But other people with PnP modems are reporting working setups. Sigh. What's the solution? -c ----Original Message Follows---- From: Hamish Moffatt <[EMAIL PROTECTED]> To: "linux.debian.user" <[EMAIL PROTECTED]> Subject: Re: cu connects to PnP modem ok, but no response for AT Date: 27 Nov 97 12:34:32 GMT On Wed, Nov 26, 1997 at 02:31:48PM +0500, Igor Grobman wrote: > > # cu --speed 115200 --line /dev/ttyS1 > > Connected > > [here I type "at&f", which is not echoed] > > cu: write: I/O error > > Disconnected > > # > > Looks like your modem is not really detected by linux. The "connected" > message from cu only means that it was able to access /dev/ttyS1 device, but > the fact that your commands are not echoed means your modem is not detected. > Most pnp modems need isapnptools to work, unless there is a way to get it back > into "legacy" mode. Install isapnptools package, and take a look at > /usr/doc/isapnptools/INSTALL. Could also be several things, like echo is disabled (favourite of Windows) (ATE1 to enable it), IRQ conflicts, etc. If the BIOS set up the PnP card, it could well be an IRQ conflict because the BIOS has absolutely no idea what IRQs the legacy hardware is using unless you've configured it correctly. hamish -- Hamish Moffatt, StudIEAust [EMAIL PROTECTED], [EMAIL PROTECTED] Student, computer science & computer systems engineering. 3rd year, RMIT. http://hamish.home.ml.org/ (PGP key here) CPOM: [****** ] 60% The opposite of a profound truth may well be another profound truth. --Bohr ______________________________________________________ Get Your Private, Free Email at http://www.hotmail.com -- TO UNSUBSCRIBE FROM THIS MAILING LIST: e-mail the word "unsubscribe" to [EMAIL PROTECTED] . Trouble? e-mail to [EMAIL PROTECTED] .
