comone.gif (2319 bytes)

Linux compatibility
For technical support and advanced users
v1.21 - DD / COM One - 01/2000

 

1. Introduction for users coming from Windows

Linux does not allow to use a modem driver for all application (like Windows 95/98). You must enter the initialization string for each application.

2. Products

3.1 PC Cards

- MobiFlash Card
*Should* be compatible with Linux by using a "PCMCIA / Compact Flash" adapter. Not tested yet.

- MC221 Platinium Discovery Card
Not compatible with Linux (this card is host based, controller less modem).

- MC220 Platinium Card 4 in 1
Compatible for modes PSTN and GSM (WW.L23, WW.L55).
Not compatible with Linux for modes ISDN, LAN.

- MC218 Communication Card 3 in 1
Compatible for modes PSTN and GSM. (Tested with firmware COM1WW.H46. Note that GSM mode support Fax Class 1 only)
Not compatible with Linux for mode ISDN.

- Mobile Data PC Card
Compatible GSM (Tested with firmware *.E11).

Notes

- MC218 and MC220 : The ISDN and LAN functions of these cards are passive (software, host based) functions. This mean a large part of the work is done by software. There are no driver compatible under Linux, and we do not provide drivers sources.
PSTN are GSM are "active functions" : the card does all the job internally.

- PC Cards GSM : Firmware upgrade (used to enable GSM of all our PC Card can't be done under Linux. You must upgrade the PC Card under another OS (Win98 recommended) and then you can use the GSM function under Linux.

3.2 External modems

- COM1 Deskline 33.6K (support Fax Class 1 only).
- COM1 Deskline 56K (support Fax Class 1 only).

3. Settings recommended

Initialization strings

PSTN : AT &D2 &C1 &K3
GSM : AT &D2 &C1 &K3 +CBST=7,0,1

Reset to default settings : AT &F &W Z

Various

Junction speed recommended : 115200 or 57600 bps.
Most of Linux fax applications requires "Fax Class 2", note that some of our modems only support "Fax class 1".

4. Configuration used for validation tests

PC : Texas Instruments Extensa 510
Distribution : Red Hat 5.1
PCMCIA Package : pcmcia-cs-2.912
Terminal application : Kermit.

5. For more Linux information's

PCMCIA Package

This package MUST be installed in order to drive the PC Card's drives.

http://pcmcia.sourceforge.org/specs/

Note that this PCMCIA Package support "plug and play" (PC Card insertion and ejection automatically detected).

PCMCIA HOW TO

http://hyper.stanford.edu/HyperNews/get/pcmcia/home.html