| Title: | Linux, the Free Operating System |
| Notice: | New here? Sign in on topic 2 |
| Moderator: | EST::DEEGAN |
| Created: | Fri Feb 11 1994 |
| Last Modified: | Fri Jun 06 1997 |
| Last Successful Update: | Fri Jun 06 1997 |
| Number of topics: | 609 |
| Total number of notes: | 2862 |
I have been trying to use my Supra 288i modem under Linux with no luck. The modem works fine under Windows95 but I cannot get to square one with Linux. Under windoze the modem is on COM3 and works just fine. Checking out the /dev/cua* and /dev/ttyS* devices show that they are correct with the majors, minors, etc. I have set up /dev/cua2 and /dev/modem up using setserial and then when I try and access the modem I always get some sort of "I/O error" message. Using stty results in a message like this... stty: standard input: I/O error Using cat get this message... cat: - : I/O error Using seyon (a communications) package delivers these messages... seyon - Error: ioctl-ioflush: I/O error also ioctl-get, ioctl-get & character-read I/O error show too. I have tried setting different IRQ's on /dev/cua2 an always get the I/O error message. All the documents I have, including the Serial HOWTO do not address this basic error. There must be some basic configuration thing I am missing here but I am clueless at this point. Anybody got an idea of what the problem is? Thanks, Mike
| T.R | Title | User | Personal Name | Date | Lines |
|---|---|---|---|---|---|
| 595.1 | Questions | NEWVAX::PAVLICEK | Linux: the PC O/S that isn't PC | Tue Apr 29 1997 17:03 | 12 |
Does your modem use a non-standard IRQ or address under Windows95?
What is the syntax of the setserial command that your are using?
Try a "setserial -a /dev/cua2" and post the results here.
Does the UART from the command above match whatever Windows95 thinks
the UART is (from MSD or whatever the W95 equivalent is these days)?
The Supra isn't a "Windows modem", is it?
-- Russ
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| 595.2 | more info.... | HANNAH::SMITH | Michael J. Smith: MRO1-2/J25 | Wed Apr 30 1997 13:55 | 35 |
The modem config using Windows95 looks like this... Supra 288i SP Interrupt 5 Port 3E8 NS 16550AN - UART 115k Baud highest I did a setserial /dev/cua2 irq 5 uart 16550A And a setserial -a /dev/cua2 produces... /dev.cua2, Line 2, UART: 16550A, Port: 0x03e8, IRQ: 5 Baud_base: 115200, close-delay: 50, divisor: 0 Flags: spd_normal, skip_test Meanwhile I tried to use the web to get the specs on the supra modem in order to find out if it is a "windows" modem (shudder) and I stumbled over some info in http://www.redhat.com/support/mailing-lists /archives/redhat-list/1996-November-1/0585.html Which pointed off to http://www.redhat.com/linux-info/pnp/ I'm going check that all out next. Seems somebody has a magic little utility that needs to get run before setserial runs... Thanks, Mike | |||||
| 595.3 | Modem working now.... | HANNAH::SMITH | Michael J. Smith: MRO1-2/J25 | Fri May 02 1997 14:07 | 14 |
I got the PNP (Plug and Play) software via the web address in the previous note and installed it on my Linix RedHat 3.0.3 system. Seems if you have some PNP devices then you must PNP'em (Poke and Prod) before they will PNP. The instructions that are in the kit are sufficent, RTFM. You use a utility to dump out the confgurations for your PNP devices into a file. You edit the file by removing any devices and configurations you don't want. Next you run a setup utility that uses your config file to PNP your device(s). At this point your system can now operate on the device. | |||||