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SerialProxy Class Reference

Proxy for managing an external serial interface. More...

#include <serialproxy.h>

List of all member functions.

Public Members

SerialProxy ( SerialDeviceBase * modem, SerialDeviceBase * computer )
~SerialProxy ()

Static Public Members

SerialProxy * create ( MuxDeviceChannel * channel )

Detailed Description

Proxy for managing an external serial interface.

Most modern phones have an external serial interface, which is used to connect to a computer for the purposes of data calls, FAX transmissions, or synchronization with desktop applications.

The SerialProxy class assists with this process. It sets up a proxy connection between the external serial interface and an internal GSM 07.10 capable modem. The serial interface may be RS-232, USB, Bluetooth, or any other suitable connection protocol.

We assume that the cable that connects the phone to the computer is wired like a null modem, even if the "cable" is USB, Bluetooth, etc:

TD	-->	RD
RD	<--	TD
DTR	-->	DSR, DCD
CTS	<--	RTS
RTS	-->	CTS
DSR, DCD	<--	DTR

If the cable isn't wired in this fashion, then the SerialProxy code may need to be modified for a specific device.

The external device must be configured in the Phone.conf file. For example:

    [SerialDevices]
    ExternalAccessDevice=/dev/ttyS1
    ExternalAccessSpeed=115200

Member Function Documentation

SerialProxy * SerialProxy::create ( MuxDeviceChannel * channel ) `[static]`

Create a serial proxy and associate it with a GSM 07.10 multiplexing channel. The external serial port is initialized from parameters in Phone.conf. Returns NULL if the proxy has not been configured.

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