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L: Directory

This directory contains device handlers, which are software modules that go between AmigaDOS and the devices used by the Amiga. However, most handlers are treated as if they are actual physical devices and they are referred to by their device name.

Handlers must be named in the mount file or MountList for their respective devices. Handlers are called and manipulated by programs, not users. New handlers can be supplied with some devices or programs and should be copied to the L: directory.

Aux-Handler

The Aux-handler provides unbuffered serial input and output. It is essentially a console handler that uses the serial port rather than the Amiga screen and keyboard.

The DOSDrivers mount file for AUX is:

Handler = L:Aux-handler
Stacksize = 1000
Priority = 5

You can use Aux-Handler to use a serial terminal with your Amiga. For example:

1> NEWSHELL AUX:

Queue-Handler (PIPE:)

The Queue-Handler is an input/output mechanism used to provide I/O communication between programs. It creates an interprocess communication channel named PIPE. For more information about PIPE:, see Appendix D.

Port-Handler

The Port-Handler is the AmigaDOS interface for the SER:, PAR:, and PRT: devices.

When accessing SER:, you can supply settings for the baud rate and control information. The form for this is SER:<baud/control>, where baud is a number representing the baud rate and where control is a three character sequence indicating the following:

Number of read/write bits

Parity

Number of stops bits

For example:

SER:9600/8N1

connects to the serial port, sets the baud rate to 9600 with a bit data, no parity, and one stop bit.

If you specify no baud rate or control values when accessing SER:, the values set in the Serial Preferences editor are used.

CrossDOSFileSystem

The CrossDOSFileSystem is required to use CrossDOS.

FileSystem_Trans

The FileSystem_Trans directory contains the following files required for CrossDOS text translation:

DANSK.crossdos

INTL.crossdos

MAC.crossdos

CDFileSystem

The CDFileSystem is required to use a CD-ROM drive.

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